Dissertations / Theses on the topic 'Diagnosis of strokes «Strokeml»'
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Іваненко, В. Ю. "Software system for early diagnosis of strokes «Strokeml»." Thesis, ХНУРЕ, 2021. https://openarchive.nure.ua/handle/document/16155.
Full textThe aim of the work is to develop a software system that allows the user to be tested, analyzes its results and provides the user with information about his susceptibility to stroke disease. The software system also aims to preserve the results of tests and provide recommendations for nutrition and healthy living.
Walsh, Kyle B. "Plasma Biomarkers for Ischemic and Hemorrhagic Stroke Diagnosis." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1511859455574062.
Full textBrazzelli, Miriam. "Studies to inform the methods for Cochrane systematic reviews of diagnostic accuracy in stroke medicine." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5566.
Full textWhiteley, William Nichol. "Blood markers for the diagnosis and prognosis of stroke." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5609.
Full textFattori, Alves Allan Felipe. "Image Processing for Enhancement of Ischemic Stroke in Computed Tomography Examinations." Thesis, Orléans, 2019. http://www.theses.fr/2019ORLE2003.
Full textStroke is one of the highest causes of death worldwide. Non-enhanced computed tomography (CT) and nuclear magnetic resonance imaging (MRI) are the two main imaging techniques used to detect stroke. CT has a lower cost and greater accessibility of the population, so it is still the main method used. In most cases, the assessment of the compromised brain area is performed subjectively and may lead to difficulties in diagnosis. This research proposes an approach based on a computational algorithm, highlighting regions of ischemic stroke. Different image processing methods were used to enhance ischemic tissues. A set of 41 retrospective CT scans from Botucatu Medical School (Brazil) was used, divided into 25 cases of acute ischemic stroke and 16 normal patients. Stroke cases were obtained within 4.5 h of symptom onset. After selection of CT slices, image averaging was performed to reduce the noise. This was followed by a variational decomposition model and the expectation maximization method was applied to generate enhanced images. We determined a test to evaluate the performance of observers in a clinical environment with and without the aid of enhanced images. The overall sensitivity of the observer’s analysis was 64.5 % and increased to 89.6 % and specificity was 83.3 % and increased to 91.7 %. These results show the importance of a computational tool to assist neuroradiology decisions, especially in critical situations such as the diagnosis of ischemic stroke
Sit, Bik-yan Sonia, and 薛碧茵. "Cognitive function in Chinese stroke patients." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B45010390.
Full textMoreira, Rafaella Pessoa. "Stroke â the nursing diagnoses analysis show in the activity/exercise branch." Universidade Federal do CearÃ, 2008. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=2511.
Full textTo determine nursing diagnoses is a very necessary task, for it contributes to the better planning of the interventions in clients who survived after the stroke and who, in most of the cases, presented incapabilities. Due to this, the study aimed to analyze the nursing diagnoses shown in the Activity/Exercise branch in clients with stroke during the period of rehabilitation. A transversal study was done amongst 121 clients who attended one of the eight units of Cearense Beneficent Association of Rehabilitation (ABCR) in Fortaleza City- CearÃ, whose data collection occurred within the period of November, 2007 and March, 2008. The including criteria were: a) to be registered in the ABCR; b) to have suffered from stroke at least once, and presented the diagnosis confirmation by the doctor; c) to be over 18 years old. A form was used for the data collection, which had undergone content validation by two nurses expertise in the care of clients with stroke. The information was collected through interview and physical tests. To name the nursing diagnoses, the Taxonomy II proposed by the North American Nursing Diagnosis Association (NANDA), published in 2008, was followed as reference. With the data compiled in the Excel program, the statistic analysis was done within the EpiInfo and SPSS program. The level of significance adopted in the study was of 5%. All ethical recommendations were followed during the stages of the research. Taking the social and demographic data into account, it was verified that the majority of these participants was from masculine gender, elderly, without a partner, retired or pensioners and had low education and income per capita. Amongst the various risk indicators, the most frequent one was the arterial hypertension, followed by the sedentarism, dislipidemy, cardiopathies and diabetes mellitus. Half of the clients studied had at once suffered from stroke 12 months before, beginning rehabilitation in one of the units of the ABCR for at maximum seven months. The participants showed an average of 6.7 nursing diagnoses; 25.1 defining characteristics; 4.6 related factors and 10.1 risky factors. All the diagnoses of the branch studied were identified, but seven: Falling risk, Impaired physical mobility, Impaired deambulation, Sedentary lifestyle, Risk for disuse syndrome, Risk for intolerance to the activity and Impaired transference capability had the frequency of over 50% and were used for the statistic analysis. According to the tests, there was a statistically significant relation among the diagnoses, with the exception of the followings: Falling risk, Impaired physical mobility, Impaired deambulation and Impaired transference capability with the diagnosis Risk for intolerance to the activity. The defining characteristics, related factors and risky factors were statistically associated with the major part of the nursing diagnoses analyzed. Such fact can be justified by the fact that all of them are part of the same branch within the NANDA (2008). One may conclude that the majority of the nursing diagnoses showed statistically association amongst them. It is verified that the Impaired muscular force and Neuromuscular damage were the most frequent related factors found, causing thus, the main consequences for the stroke. The study permitted a deep knowledge upon the Activity/Exercise branch in clients with stroke
Determinar diagnÃsticos de enfermagem à uma atividade de assistÃncia muito necessÃria, pois contribui para o melhor planejamento de intervenÃÃes em clientes que sobreviveram ao acidente vascular encefÃlico (AVE) e que na maioria dos casos apresentam incapacidades. Diante disso, o estudo teve por objetivo analisar os diagnÃsticos de enfermagem pertencentes à classe Atividade/ExercÃcio em clientes com acidente vascular encefÃlico no perÃodo de reabilitaÃÃo. Um estudo transversal foi desenvolvido com 121 clientes que freqÃentavam uma das oito unidades da AssociaÃÃo Beneficente Cearense de ReabilitaÃÃo (ABCR) na cidade de Fortaleza-CearÃ, cuja coleta de dados ocorreu no perÃodo de novembro de 2007 a marÃo de 2008. Os critÃrios de inclusÃo foram: a) ser cadastrado na ABCR; b) ter apresentado pelo menos um episÃdio de acidente vascular encefÃlico, com diagnÃstico confirmado por mÃdico; c) ter idade acima de 18 anos. Para a coleta de dados utilizou-se um formulÃrio submetido à validaÃÃo de conteÃdo de duas enfermeiras especialistas no cuidado a clientes com acidente vascular encefÃlico. As informaÃÃes foram coletadas por meio de entrevista e exame fÃsico. Para nomeaÃÃo dos diagnÃsticos de enfermagem seguiu-se como referÃncia a Taxonomia II da North American Nursing Diagnosis Association (NANDA), publicada em 2008. Com os dados compilados no Excel fez-se a anÃlise estatÃstica no programa EpiInfo versÃo 3.2 e no SPSS versÃo 16.0. O nÃvel de significÃncia adotado no estudo foi 5%. Todas as recomendaÃÃes Ãticas foram seguidas durante as etapas da pesquisa. Quanto aos dados sociodemogrÃficos, a maioria dos participantes era do sexo masculino, idosos, sem companheiros, aposentados ou pensionistas com baixa escolaridade e baixa renda per capita. Dos diversos indicadores de risco, o mais freqÃente foi a hipertensÃo arterial, seguida do sedentarismo, dislipidemias, cardiopatias e diabetes mellitus. Metade dos clientes estudados teve um episÃdio de AVE hà doze meses, com inÃcio de reabilitaÃÃo em uma das unidades da ABCR de no mÃximo sete meses. Em mÃdia, os participantes apresentaram 6,7 diagnÃsticos de enfermagem; 25,1 caracterÃsticas definidoras; 4,6 fatores relacionados e 10,1 fatores de risco. Todos os diagnÃsticos da classe em estudo foram identificados, mas sete: Risco de queda, Mobilidade fÃsica prejudicada, DeambulaÃÃo prejudicada, Estilo de vida sedentÃrio, Risco de sÃndrome do desuso, Risco de intolerÃncia à atividade e Capacidade de transferÃncia prejudicada tiveram freqÃÃncia acima de 50% e foram utilizados para anÃlise estatÃstica. De acordo com os testes, identificou-se associaÃÃo estatisticamente significante entre os diagnÃsticos, com exceÃÃo dos seguintes: Risco de queda, Mobilidade fÃsica prejudicada, DeambulaÃÃo prejudicada e Capacidade de transferÃncia prejudicada com o diagnÃstico Risco de intolerÃncia à atividade. As caracterÃsticas definidoras, fatores relacionados e os fatores de risco estiveram associados estatisticamente com a maior parte dos diagnÃsticos de enfermagem analisados. Tal fato pode ser justificado por todos fazerem parte da mesma classe da NANDA (2008). Conclui-se que a maioria dos diagnÃsticos de enfermagem mostrou associaÃÃo estatÃstica entre eles. Destaca-se que a ForÃa muscular diminuÃda e PrejuÃzos neuromusculares foram os fatores relacionados mais freqÃentes, sendo as principais conseqÃÃncias do AVE. O estudo permitiu o conhecimento aprofundado da classe Atividade/ExercÃcio da NANDA em portadores de AVE
Guest, Richard M. "The diagnosis of visuo-spatial neglect through the computer-based analysis of hand-executed drawing tasks." Thesis, University of Kent, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310163.
Full textMoreira, Miguel Alexandre Rodrigues. "Diagnosis support in the stroke: Suporte ao diagnóstico em acidentes cardiovasculares." Master's thesis, Universidade de Aveiro, 2010. http://hdl.handle.net/10773/6624.
Full textO acidente vascular cerebral é uma das causas de morte mais frequente em todo o mundo e a decisão de tratamento e o resultado final é altamente dependente da qualidade do diagnóstico. Recentemente, a tomografia de perfusão tem sido utilizada com resultados promissores na avaliação de Acidentes Cardio Vasculares (AVCs), principalmente porque esta técnica dá mais informação sobre as alterações hemodinâmicas dentro da área de enfarte. No entanto, muitos parâmetros diferentes são actualmente usados para analisar os resultados da tomografia de perfusão, tentando integrar a informação temporal que contém. Alguns desses parâmetros são o volume sanguíneo, o fluxo sanguíneo ou o tempo de trânsito por exemplo. Neste trabalho foi desenvolvido um conjunto de ferramentas que permitem aplicar os diversos métodos encontrados na literatura assim como uma aplicação que nos permite seleccionar os métodos e a forma de os aplicar. Desta forma foi possível investigar e trabalhando com os médicos descobrir os métodos mais promissores, assim como implementar ferramentas para a detecção das ares passíveis de recuperação.
Stroke is among the most frequent cause of death around the world and the decision to treat and final outcome is highly dependent on the quality of diagnosis. Recently, cerebral perfusion tomography have been used with promising results in the stroke evaluation mainly because this technique gives further information about the hemodynamic changes within the stroke area. However many different parameters are actually used to analyze the CT perfusion results, trying to integrate the temporal information it contains. Some of these parameters are Blood Volume, Blood Flow or Transit Time for example. We developed a framework that applies several methods present in literature as well as an application that allows us to select the methods and how to apply them. This made it possible to investigate and working with clinical experts to discover the most promising methods and implement tools for detecting potentially recoverable areas.
TAKAYASU, MASAKAZU, KOJI OSUKA, YOSHIHISA KITAMURA, AKIRA TAMASE, KATSUYOSHI MIYASHITA, KENTARO MORI, MOTOHIRO NOMURA, MUNEYOSHI YASUDA, and HIROSHI SHIMA. "A SPINAL EPIDURAL HEMATOMA WITH SYMPTOMS MIMICKING CEREBRAL STROKE." Nagoya University School of Medicine, 2012. http://hdl.handle.net/2237/16040.
Full textBayoumy, Hassan, and L. O. Averyanova. "Actual problems of stroke disease cure in Egypt." Thesis, Харків, ХНУРЕ, 2019. http://openarchive.nure.ua/handle/document/8375.
Full textJackson, Daniel Lee. "Diagnostic technologies for stroke related events : an economic evaluation." Thesis, University of Surrey, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.576120.
Full textResare, Chatarina. "Närståendes upplevelser av att leva med en person som fått diagnosen stroke. : En litteraturstudie." Thesis, Högskolan i Gävle, Avdelningen för hälso- och vårdvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-27977.
Full textBackground: Stroke is the third most common cause of death in Sweden. The risk of stroke is higher in diabetes, high blood pressure and smoking. Purpose: Describe the perpetrators' experiences of living with a person who has been diagnosed with stroke. Method: Literature study based on evaluation of 16 scientific articles. Result: Proximity to a person diagnosed with stroke is experiencing a change in his / her partner's life situation. From just living in a partnership, the relationship has now changed to being a care provider of a related person diagnosed with stroke. The relatives also felt that they had a great workload, were frustrated by the situation that occurred and also felt a great deal of concern for the future. Relatives also experienced their relationship as more caring for their partner and saw that family ties were strengthened after relatives were diagnosed with stroke. The participants in the studies studied had been diagnosed from 3 weeks to 3 years and in 15 of the studies, participants were interviewed and in one of the studies the information was collected via online postings. Conclusion: Major concerns and some information from the health care system were experienced in most related persons to stroke. This study could enhance understanding for close relatives and also for the person diagnosed with stroke, as they have their care contact. The nurse needs to increase the nursing care for close relatives and the person who has been diagnosed with stroke. This would facilitate the everyday life of many families, as you get an increased insight into the disease stroke and its complications. Keywords: Daily life, diagnosed stroke, nursing, related person.
Zolgharni, Massoud. "Magnetic induction tomography for imaging cerebral stroke." Thesis, Swansea University, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.678669.
Full textAxelsson, Karin. "Eating problems and nutritional status after stroke." Doctoral thesis, Umeå universitet, Institutionen för omvårdnad, 1988. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-99332.
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digitalisering@umu
Cavalcante, Tahissa Frota. "DiagnÃsticos de enfermagem em pacientes internados por acidente vascular encefÃlico." Universidade Federal do CearÃ, 2008. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=2484.
Full textA identificaÃÃo dos diagnÃsticos de enfermagem contribui para o planejamento das intervenÃÃes de enfermagem necessÃrias no intuito de prevenir e reduzir as incapacidades e recuperar a saÃde. Objetivou-se analisar o perfil de diagnÃsticos de enfermagem em pacientes com acidente vascular encefÃlico durante a hospitalizaÃÃo. Estudo transversal, realizado no perÃodo de outubro de 2007 a abril de 2008, com 91 pacientes com acidente vascular encefÃlico, internados na emergÃncia de um hospital geral localizado na cidade de Fortaleza-CearÃ. Estabeleceram-se como critÃrios de inclusÃo: a) estarem internados pelo diagnÃstico mÃdico de acidente vascular encefÃlico independente do tipo; b) terem idade igual ou superior a 18 anos; c) nÃo terem histÃria prÃvia de acidente vascular encefÃlico. Como critÃrio de exclusÃo estabeleceu-se apenas um: pacientes que durante a coleta de dados apresentarem situaÃÃes de emergÃncia com risco de morte. Para a coleta de dados utilizou-se um formulÃrio submetido à validaÃÃo de conteÃdo com quatro enfermeiras especialistas em diagnÃsticos de enfermagem ou no cuidado aos pacientes com acidente vascular encefÃlico. As informaÃÃes foram coletadas por meio de entrevista, exame fÃsico e consulta ao prontuÃrio. Para nomeaÃÃo dos diagnÃsticos de enfermagem seguiu-se como referÃncia a Taxonomia II da North American Nursing Diagnosis Association publicada em 2008. Compilaram-se os dados no Excel e fez-se a anÃlise estatÃstica no programa SPSS. O nÃvel de significÃncia adotado no estudo foi 5%. Quanto aos dados sociodemogrÃficos, conforme verificou-se, estes pacientes eram predominantemente do sexo feminino, aposentados, catÃlicos, viviam com companheiro e com baixa escolaridade e baixa renda. O acidente vascular tipo isquÃmico predominou no grupo (45,9%), seguido pelo tipo hemorrÃgico (38,5%). Segundo constatou-se, esses pacientes apresentaram uma mediana de dez diagnÃsticos de enfermagem e uma mÃdia de onze caracterÃsticas definidoras, seis fatores relacionados e cinco fatores de risco. Os diagnÃsticos de enfermagem mais freqÃentes foram: Risco de infecÃÃo (96,7%), DÃficit no autocuidado para banho/higiene (76,9%), DÃficit no autocuidado para higiene Ãntima (74,7%), DÃficit no autocuidado para vestir-se/arrumar-se (71,4%), ComunicaÃÃo verbal prejudicada (62,6%), PerfusÃo tissular ineficaz â tipo cerebral (59,3%), Risco de integridade da pele prejudicada e Mobilidade no leito prejudicada (52,7%) e Risco de aspiraÃÃo (50,5%). De modo geral, o perfil encontrado neste estudo à semelhante aos descritos em outros estudos com pacientes internados em unidades de terapia intensiva. Com exceÃÃo do diagnÃstico de enfermagem Risco de infecÃÃo, os demais mostraram associaÃÃo estatisticamente significante entre si. A totalidade das caracterÃsticas definidoras e dos fatores relacionados revelou associaÃÃo estatÃstica significativa com todos os diagnÃsticos de enfermagem, exceto com Risco de infecÃÃo. Como observado, o estudo permitiu conhecer de forma aprofundada os diagnÃsticos de enfermagem, as caracterÃsticas definidoras, os fatores relacionados e os fatores de risco manifestados pelos pacientes na fase de hospitalizaÃÃo. Destaca-se a presenÃa daqueles de carÃter biolÃgico e de risco. Os achados reforÃam a necessidade da equipe de enfermagem atuar nÃo somente no aspecto curativo, mas tambÃm na prevenÃÃo e na promoÃÃo da saÃde, tanto nos nÃveis secundÃrios de saÃde como nos terciÃrios.
The idetinfication of the diagnoses in nursing contribute to the planning of the nursing interventions in order to prevent and reduce the incapabilities. It was aimed to analize the nursing diagnosis profile in patients with stroke during hospitalization. This is a descriptive study which was done within the period of October 2007 to April 2008, involving 91 patients with stroke, who were hospitalized in an emergency department of a general hospital set in Fortaleza City - CearÃ. Some including criteria were established: a) being hospitalized due to the stroke diagnosed by the doctor, independently on the type; b) being 18 years old or over; c) not having previous history of stroke. The excluding criteria were: a) patients who, during the collection of data, presented emergencial situations as well as dead risk. A form was used for the data collection and it also undergone content validation with four nurses who are expertise in nursing diagnoses or in the care of patients with stroke. The information was collected through enterview, physical test and prontuary consultation. To name the nursing diagnoses, the Taxonomy II proposed by the North American Nursing Diagnosis Association published in 2008 was followed as reference. The data was compiled in the Excel program and the statistic analysis was done within the SPSS program. The level of significance adopted in the study was of 5%. Taking the social and demographic data into account, it was verified that the majority of these patients were from feminine gender, retired, catholics, lived with a partner and had low education and income. The ischemic type of stroke was predominant in the group (45.9%), followed by the hemorrhagic type (38.5%). According to the findings, these patients showed an avarage of nine nursing diagnoses, eleven defining characteristics, six related factors and five risky factors. The most frequent nursing diagnoses were: Risk of infection (96.7%), Self-care deficit_bathing and higiene (76.9%), Self-care deficit_intimate higiene (74.7%), Self-care deficit_self dressing (71.4%), Verbally damaged communication (62.6%), Ineffective tissular perfusion_cerebral type (59.3%), Risk of the integrity of the damaged skin (52.7%) and Risk of aspiration (50.5%). Generally, the profile found in this study is similar to the ones described in other studies with patients hospitalized in intensive therapy units. Apart from the nursing diagnosis Risk of infection, the remaining ones showed statistically significant association among themselves. The total defining characteristics and the related factors revealed significative statistic association with all nursing diagnoses, except from the Risk of infection one. As observed, the study allowed us to know in a deep way the nursing diagnoses, the defining characteristics, the related factors and the risk factors manifested in the patients during hospitalization. The presence of those with biological and risky character stands out. The findings reinforce the need that the nursing team has to act not only upon the curative aspect, but also on the prevention and the health promotion, in the secondary levels of health and the tertiary as well.
Schmid, Jochen [Verfasser], and O. [Akademischer Betreuer] Dössel. "Microwave Imaging for Stroke Diagnostics / Jochen Schmid ; Betreuer: O. Dössel." Karlsruhe : KIT-Bibliothek, 2016. http://d-nb.info/1121683525/34.
Full textJohansson, Anette. "Hemrehabilitering av personer med diagnosen stroke : -konsensus genom Delhpi-teknik." Thesis, Hälsohögskolan, Högskolan i Jönköping, HHJ, Avd. för rehabilitering, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-23496.
Full textBackground/aim: There is an increasingly focus on home-based rehabilitation for persons diagnosed with stroke. However, rehabilitation in the home environment can be delivered in many different ways and the best way to deliver home-based rehabilitation and its content is not yet clarified in the literature. The aim was to identify what home-based rehabilitation should contain from the perspective of members working in multidisciplinary teams in homes of persons diagnosed with stroke. Methods: The study design was a consensus-building, three-round Delphi survey. Questionnaires were sent by e-mail to a panel of 12 experts including occupational therapists, nurses and physiotherapists. In round 1 the experts were asked to answer open-ended questions to obtain their personal views on the subject. The questionnaire in Round 2 and 3 were built on the results of the previous ones and the experts were asked to mark on a Likert scale the importance of each statement. Results: Sixty-four of 74 statements reached a consensus level of 75% or more. Home-based rehabilitation should contain patient’s autonomy and participation in the rehabilitation program. This is ensured by a client-centred approach characterized by cooperation and interaction with the social environment throughout the rehabilitation process. Conclusions: Overall components in home-based rehabilitation for persons diagnosed with stroke is empowerment, participation and autonomy achieved by ”The good team” and coordination strategies. Significance of the study: The result of the study could be an important source of information when designing home rehabilitation programs for persons with stroke.
El, Hajj Maya. "Elaboration d'un Score Prédictif des Accidents Vasculaires Cérébraux au Liban." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC0078/document.
Full textBackground: Stroke is the second leading cause of death in Lebanon and worldwide. There is a scarcity of reliable information about the epidemiology of stroke in Lebanon. We aim to identify stroke risk factors and symptoms in the Lebanese population and develop a score for future stroke prediction and another for stroke diagnosis at emergency.Methods: A case-control study was conducted for the scores generation. Data were collected through a designed data collection sheet at two tertiary hospitals in Lebanon between January 1st, 2012 and December 31st, 2014. A logistic regression determined stroke risk factors and symptoms and the rounded coefficients generated a Risk of Stroke Score (ROSS) and a Diagnosis Score for Stroke (DS-Stroke). Another case-control study was conducted for the scores validation where data were collected through a standardized questionnaire at five different tertiary hospitals between January 1st, 2015 and December 31st, 2016. ROSS and DS-Stroke were validated by comparing them to the hospitals final diagnosis.Results: In total, 732 participants were included in the score generation study (202 stroke cases and 530 stroke-free controls) and 650 participants were included in the score validation study (205 cases and 445 stroke-free controls). Many risk factors and symptoms were found to be associated with stroke in Lebanon. ROSS and DS-Stroke were constructed and validated with high areas under the curve and high negative and positive prediction values.Conclusion: ROSS is a good risk assessment tool for use to improve the prediction of stroke in the Lebanese population and would be of particular interest in the primary care setting to reduce stroke incidence. DS-Stroke is another valuable tool to use for stroke diagnosis at emergency and would be interesting to user in order to have an accurate diagnosis of stroke, call for further emergency testing if necessary and speed up the treatment for stroke patients
Wong, Oi-chi, and 王藹慈. "Evidence-based bedside swallowing assessment by nurses for the patients with stroke." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48339301.
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Edgar, Deborah Rankine. "A multiple sensor dual chamber waveform recording diagnostic pacemaker." Thesis, University of Exeter, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363426.
Full textLovelock, Caroline. "The clinical epidemiology of haemorrhagic stroke : time trends and diagnostic tissues." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.497042.
Full textBackström, Eva, and Martin Petersson. "Kommunikationens betydelse i mötet mellan sjuksköterska och en patient med diagnosen stroke." Thesis, Blekinge Tekniska Högskola, Sektionen för hälsa, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-1796.
Full textCavalcante, Tahissa Frota. "ValidaÃÃo do diagnÃstico de enfermagem risco de aspiraÃÃo em pacientes com acidente vascular cerebral." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=6354.
Full textO estudo tem por objeto a validaÃÃo do diagnÃstico de enfermagem Risco de aspiraÃÃo em pacientes com acidente vascular cerebral. Estudo metodolÃgico, desenvolvido em trÃs etapas de validaÃÃo de diagnÃsticos de enfermagem, conforme preconizado por Hoskins (1989): anÃlise de conceito, validaÃÃo por especialistas e validaÃÃo clÃnica. Para a realizaÃÃo da anÃlise de conceito, utilizou-se como referÃncias o modelo de anÃlise de conceito proposto por Walker e Avant (2005) e a revisÃo integrativa da literatura proposta por Whittemore e Knafl (2005). Procedeu-se à busca pela literatura em cinco bases de dados: LILACS, CINAHL, PUBMED, SCOPUS e COCHRANE, com os descritores aspiraÃÃo respiratÃria e acidente cerebral vascular e as suas sinonÃmias nas lÃnguas inglesa e espanhola. ApÃs a aplicaÃÃo de critÃrios de inclusÃo e exclusÃo, restaram 94 estudos (total de 659) que subsidiaram a anÃlise do conceito. Em relaÃÃo ao conceito de aspiraÃÃo respiratÃria, foram encontrados trÃs atributos crÃticos essenciais para a compreensÃo deste conceito: movimento (entrada, penetraÃÃo), objeto (sÃlidos, fluidos, secreÃÃes orofarÃngeas, conteÃdos gÃstricos) e localizaÃÃo exata (abaixo das cordas vocais e trato respiratÃrio inferior). Foram levantados onze fatores de risco para aspiraÃÃo respiratÃria em pacientes com acidente vascular cerebral com os seus respectivos conceitos e referÃncias empÃricas: disfagia, depressÃo do nÃvel de consciÃncia, reflexo de tosse prejudicado ou ausente, desordens neurolÃgicas (trauma cerebral, acidente vascular cerebral e doenÃa de Alzheimer), presbifagia, uso de tubos gastrintestinais, presenÃa de refluxo gastroesofÃgico, imobilizaÃÃo, reflexo de vÃmito ausente, procedimentos invasivos como videofluoroscopia e endoscopia digestiva alta e sedaÃÃo. ApÃs a etapa de anÃlise de conceito, foi construÃdo um instrumento com os conceitos e as referÃncias empÃricas dos fatores de risco identificados. Este foi submetido ao crivo de 26 enfermeiros especialistas na Ãrea do diagnÃstico de enfermagem em estudo. Alguns fatores de risco foram apontados como inapropriados pelos especialistas (proporÃÃo de concordÃncia abaixo de 85%) para a prediÃÃo do risco de aspiraÃÃo respiratÃria: presbifagia, imobilizaÃÃo, reflexo de vÃmito ausente e procedimentos invasivos como endoscopia digestiva alta e videofluoroscopia. Entretanto, ao analisar as sugestÃes dos especialistas, encontrou-se que estes nÃo concordavam com o conceito ou com a referÃncia empÃrica proposta para estes fatores de risco, o que motivou a modificaÃÃo. Grande parte dos especialistas sugeriu o acrÃscimo dos fatores de risco uso de tubos endotraqueais/traqueostomia e cabeceira do leito baixa. Estes fatores de risco analisados e validados por especialistas foram testados na prÃtica clÃnica, por meio de um estudo longitudinal realizado com 24 pacientes internados em um hospital geral por acidente vascular cerebral. Os achados mostraram que disfagia e mobilidade corporal diminuÃda constituem preditores eficazes da presenÃa do diagnÃstico de enfermagem risco de aspiraÃÃo. Os fatores de risco presbifagia, presenÃa de refluxo gastroesofÃgico e procedimentos invasivos como endoscopia digestiva alta e videofluoroscopia nÃo foram indicadores satisfatÃrios do diagnÃstico em estudo. Portanto, sete fatores de risco demonstraram-se, conforme examinado pela anÃlise de conceito, validaÃÃo por especialistas e validaÃÃo clÃnica, apropriados para avaliar o diagnÃstico de enfermagem risco de aspiraÃÃo em pacientes com acidente vascular cerebral.
Sundström, Markus, and Emelie Backman. "Vårdpersonals upplevelse av att vårda patientermed diagnosen afasi efter stroke : En litteraturstudie." Thesis, Umeå universitet, Institutionen för omvårdnad, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-99917.
Full textBakgrund: Stroke är en av de ledande orsakerna till långvariga följdsjukdomar, däribland kognitiva nedsättningar som afasi. Afasi kan påverka patientens förmåga att förstå och uttrycka sig i tal och skrift. För att uppnå god omvårdnad bör vårdpersonal och patient ha samma mål och värderingar, vilket ställer krav på kommunikationen mellan patient och vårdare. Det kan vara problematiskt för vårdpersonal då de inte alltid känner sig säkra på hur de ska närma sig dessa patienter. Syfte: Syftet med litteraturstudien var att belysa vårdpersonals upplevelser av att vårda patienter med diagnosen afasi efter stroke. Metod: Det här är en litteraturstudie där nio studier, med kvalitativ ansats, har analyserats och sammanställts. Inklusions- och exklusionskriterier har använts för att avgränsa resultatet. Alla studier har kvalitetsgranskats. Resultat: Det finns varierande upplevelser hos vårdpersonal när det kommer till att vårda patienter som diagnostiserats med afasi efter stroke. Resultatet presenteras i tre huvudkategorier; “Vårdpersonals upplevelse av tid och resurser för att ge god omvårdnad”, “Vårdpersonals metoder och hjälpmedel i omvårdnaden” och “Relationer och känslor kopplade till omvårdnaden av patienter med diagnosen afasi efter stroke”. Konklusion: Baserat på vårdpersonals upplevelser behövs mer forskning inom detta område dels för att utveckla strategier som kan hjälpa i kommunikationen och spara tid, men också för att kunna kartlägga hur vårdpersonal känner inför omvårdnaden av dessa patienter.
Alves, Allan Felipe Fattori. "Image processing for enhancement of ischemic stroke in computed tomography examinations." Botucatu, 2019. http://hdl.handle.net/11449/181997.
Full textResumo: O acidente vascular cerebral (AVC) é uma das maiores causas de morte em todo o mundo. No Brasil, o AVC é a principal, sendo que em 2009, foi responsável por 10,2% das mortes registradas. A tomografia computadorizada (TC) e a ressonância magnética nuclear (RMN) são as duas principais técnicas de imagem usadas para detectar o AVC. A TC tem um custo menor e maior acessibilidade da população, por isso ainda é o principal método de avaliação do acidente vascular cerebral. A avaliação do cérebro comprometido é realizada de forma subjetiva e pode levar à dificuldades no diagnóstico. Esta pesquisa propõe a implementação de um algoritmo computacional, destacando regiões de AVC isquêmico. Diferentes métodos de processamento de imagem foram utilizados para melhorar a visualização do tecido isquêmico. Um conjunto de 41 tomografias retrospectivas obtidas na Faculdade Medicina de Botucatu foram utilizadas, divididas em 25 casos de AVC isquêmico e 16 pacientes controle. Os casos de AVC foram obtidos dentro de 4,5 horas após os primeiros sintomas. Após a seleção dos slices com a possível presença de AVC, tais slices foram somados resultando em um único slice com valores médios de forma a reduzir o ruído. Isto foi seguido por um modelo de decomposição variacional onde se mantiveram componentes de interesse da imagem. O método de maximização de expectativas foi aplicado para gerar imagens melhoradas. Determinamos um teste de desempenho de observadores em um ambiente clínico. A sensibilidade ge... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Stroke is one of the highest causes of death worldwide. In Brazil, stroke is the leading cause of death, and in 2009, it was responsible for 10.2% of deaths recorded. Non-enhanced computed tomography (CT) and nuclear magnetic resonance imaging (MRI) are the two main imaging techniques used to detect stroke. CT has a lower cost and greater accessibility of the population, so it is still the main method used. In most cases, the assessment of the compromised brain area is performed subjectively and may lead to difficulties in diagnosis. This research work proposes an approach based on a computational algorithm, highlighting regions of ischemic stroke. Different image processing methods were used to enhance ischemic tissues. A set of 41 retrospective CT scans from Botucatu Medical School (Brazil) was used, divided into 25 cases of acute ischemic stroke and 16 normal patients. Stroke cases were obtained within 4.5 h of symptom onset. After selection of CT slices, image averaging was performed to reduce the noise. This was followed by a variational decomposition model and the expectation maximization method was applied to generate enhanced images. We determined a test to evaluate the performance of observers in a clinical environment with and without the aid of enhanced images. The overall sensitivity of the observer’s analysis was 64.5 % and increased to 89.6 % and specificity was 83.3 % and increased to 91.7 %. These results show the importance of a computational tool to assist n... (Complete abstract click electronic access below)
Doutor
Cuingnet, Rémi. "Contributions à l’apprentissage automatique pour l’analyse d’images cérébrales anatomiques." Thesis, Paris 11, 2011. http://www.theses.fr/2011PA112033/document.
Full textBrain image analyses have widely relied on univariate voxel-wise methods. In such analyses, brain images are first spatially registered to a common stereotaxic space, and then mass univariate statistical tests are performed in each voxel to detect significant group differences. However, the sensitivity of theses approaches is limited when the differences involve a combination of different brain structures. Recently, there has been a growing interest in support vector machines methods to overcome the limits of these analyses.This thesis focuses on machine learning methods for population analysis and patient classification in neuroimaging. We first evaluated the performances of different classification strategies for the identification of patients with Alzheimer's disease based on T1-weighted MRI of 509 subjects from the ADNI database. However, these methods do not take full advantage of the spatial distribution of the features. As a consequence, the optimal margin hyperplane is often scattered and lacks spatial coherence, making its anatomical interpretation difficult. Therefore, we introduced a framework to spatially regularize support vector machines for brain image analysis based on Laplacian regularization operators. The proposed framework was then applied to the analysis of stroke and of Alzheimer's disease. The results demonstrated that the proposed classifier generates less-noisy and consequently more interpretable feature maps with no loss of classification performance
Ivanova, N. M. "Correlation of anxiety-depressive disorders and cognitive impairment due to stroke. Features of early diagnosis and treatment." Thesis, БДМУ, 2022. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/18976.
Full textAlemany, Ripoll Montserrat. "MRI Diagnosis of Intracranial Hemorrhage : Experimental and Clinical Studies." Doctoral thesis, Uppsala University, Department of Oncology, Radiology and Clinical Immunology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3333.
Full textThe purpose of this work was to improve the diagnosis of intracranial hemorrhage with MRI, using, among others, T2*-w GE sequences. Various sequences were tested in rabbits at two magnetic field strengths. Then, the most effective technique was applied to stroke patients.
Experimental studies: The MR detectability of small experimental haematomas in the brain and of blood in the cerebrospinal fluid (CSF) spaces of 30 rabbits was evaluated. MRI examinations were performed at determined intervals. The last MR images were compared to formalin fixed brain sections and, in 16 rabbits, also to the histological findings. T2*-weighted GE sequences revealed all the intraparenchymal haematomas at 1.5 T, appearing strongly hypointense. Their signal patterns remained unchanged during the follow-up. Blood in the CSF spaces was best detected at 1.5T with T2*-weighted GE sequences during the first 2 days. FLAIR and SE sequences were rather insensitive.
Clinical studies: MR examinations were performed at 1.5T, including T1- and T2-w SE, FLAIR and T2*-w GE sequences. In the first clinical study, 66 intraparenchymal hematomas (IPH) of different sizes and ages were examined. T2*-w GE sequence was the most sensitive. On all the sequences, we found a big variety of signal patterns, without a clear relationship to the age of the hematomas.
In a second clinical study, MR examinations were performed to 83 patients with acute stroke: 43 presented acute IPH and 40 were used as controls. Old microhemorrhages (OMHs) were found in 60% of the patients with IPH, and in 15% of the controls.
Conclusion: T2*-weighted GE sequences are capable of revealing very small intraparenchymal hemorrhages at any stage, and blood in CSF spaces during at least the first 2 days. The age of IPHs cannot reliably be estimated with MRI. We have found a correlation between the presence of OMHs and acute intraparenchymal hematomas.
Hamilton-Bruce, Monica Anne. "Conventional and topographic electroencephalography and somatosensory evoked potential studies in ischaemic stroke." Adelaide, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phh222.pdf.
Full textWarburton, Elizabeth. "Mechanisms for the recovery of aphasia following stroke : a positron emission tomography study." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299261.
Full textMiller, Lakisha Chitique. "Medical Resident Turnover and Its Association with Inpatient Mortality in Patient Discharges with a Primary Diagnosis in the Heart Disease, Cancer, or Stroke Diagnostic Groups at U.S. Teaching Hospitals, 2002." Case Western Reserve University School of Graduate Studies / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1239044238.
Full textLasserson, Daniel Sascha. "Delay in accessing healthcare after transient ischaemic attack and minor stroke : the role of primary care in the problem and the solution." Thesis, University of Cambridge, 2012. https://www.repository.cam.ac.uk/handle/1810/243938.
Full textSchieferdecker, Nicola [Verfasser], and Martin [Akademischer Betreuer] Dichgans. "Platelet-associated miRNAs as potential diagnostic biomarkers after acute ischemic stroke / Nicola Schieferdecker ; Betreuer: Martin Dichgans." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2021. http://nbn-resolving.de/urn:nbn:de:bvb:19-281797.
Full textOsborne, Jesse. "A Protocol Driven Stroke Code's Impact on Door-to-Needle Times." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/etd/3754.
Full textPacheco, Aline Cristina. "Disfagia no acidente vascular cerebral: diagnóstico, preditores e desfechos associados." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/17/17140/tde-23032018-121751/.
Full textThis study was carried out with the following objectives: to identify the frequency and the predictors of dysphagia in stroke patients; to assess the impact of dysphagia on outcomes functional dependence and death at three months post-stroke; and to validate the Toronto Bedside Swallowing Screening Test (TOR-BSST©) screening test in stroke patients from a public hospital in Brazil. All consecutive eligible patients newly admitted to the Emergency Unit of the Hospital Clinics of School of Medicine of Ribeirao Preto - University of São Paulo (HCFMRP-USP) and captured by REAVER (an institution based prospective registry for stroke patients) between April 2015 and September 2016 were approached and consented. Eligible patients were those that met the following criteria: age>18 years and medical diagnosis of acute stroke (<10 days between stroke and hospital admission) confirmed from neuroimage exams. Patients with transient ischemic attack, subarachnoid hemorrhage, cerebral venous thrombosis, not acute stroke, hemorrhagic stroke with secondary cause or those who did not agree to participate in the study were excluded. The demographic and clinical characteristics were prospectively collected by REAVER research coordinators. Swallowing was evaluated by three Speech and Language Pathologists in the first week of hospital admission at the bedside with clinical assessment using paste and liquid consistency. Patients were assessed with TOR-BSST© and with videofluoroscopy after discharge from hospital. Modified Rankin scale, Barthel Index and Functional Independence Measure (FIM) were used to assess functional outcomes three months after stroke. In the period of the study, 831 stroke patients were admitted, 353 patients were excluded according to the inclusion and exclusion criteria. Of the eligible patients, 53 were removed because they were discharged before clinical assessment of swallowing, therefore 425 patients were included in this study. Among the included patients, 28.2% did not present conditions for clinical swallowing assessment and were considered in the presumed dysphagia group. Thus, 305 patients were examined with clinical swallowing assessment and 45.2% of them had dysphagia. Age (p=0.017), known medical history of obstructive sleep apnea (p=0.003) and stroke severity at hospital admission (p<0.001) were independently associated with dysphagia. Dysphagic patients had longer length of stay (p=0.001), higher frequency of rehabilitation (p<0.001) and higher frequency of use of tube feeding (p<0.001) within three months after stroke. The presence of dysphagia detected in clinical swallowing assessment was independently associated with functional dependence or death within three months after stroke (p<0.001). The TORBSST© showed sensitivity of 85% to detect dysphagia compared to videofluoroscopy and moderate agreement among the screeners (K=0.44). Therefore, in this study, dysphagia was diagnosed in almost half of the patients (45.2%). Age, known medical history of obstructive sleep apnea and stroke severity were predictors of dysphagia, which was independently associated with death or functional dependence at three months post-stroke. The TOR-BSST© presented high sensitivity to detect dysphagia in stroke patients compared to the gold standard.
Akasaka, Thai. "Detection of suspected brain infarctions on CT can be significantly improved with temporal subtraction images." Kyoto University, 2019. http://hdl.handle.net/2433/242382.
Full textJuega, Mariño Jesús María. "Diagnóstico Avanzado en la Fase Aguda del Ictus Criptogénico." Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/673398.
Full textIntroducción El abordaje diagnóstico de la causa del ictus isquémico es de especial importancia dado que las recurrencias son habitualmente fruto de la misma patología que el ictus previo. Hasta un 25% de los ictus son catalogados como ictus criptogénico o de causa desconocida tras un ingreso hospitalario. El objetivo es implementar un protocolo diagnóstico en la fase aguda del ictus criptogénico que identifique etiologías de alto potencial embolígeno causantes de ictus severos para la optimización de la prevención secundaria del ictus. Métodos: Análisis prospectivo de pacientes con ictus criptogénicos con diseño de estrategias para la detección de fuentes embólicas, Se evaluó en un cohorte de pacientes la monitorización cardiaca con Holter textil de inicio precoz en fase hospitalaria y de manera continuada hasta cumplir 28 días de monitorización ambulatoria . Se analizaron la tasa de detección de Fibrilación Auricular (FA) y los marcadores predictivos de detección mediante un análisis multimodal combinando predictores clínicos, de neuroimagen y cardíacos basales de cada paciente. En otra cohorte de pacientes se evaluó la utilidad de la ecocardioscopia de mano ultra portátil para la detección de cardiopatías embolígenas mayores identificadas como fracción de eyección severamente deprimidas o valvulopatías embolígenas y su fiabilidad con respecto al estudio ecocardiográfico estándar, se analizaron los predictores de detección de fuentes cardioembólicas mayores mediante estudios ecocardiográficos focalizados en la fase aguda del ictus criptogénico. Resultados Entre 296 pacientes, 264 pacientes completaron la monitorización con una tasa de detección de FA paroxística del 23,1% (61/264) tras monitorización durante 28 días de manera precoz y continua. Los pacientes con detección de FA fueron mayores [odds ratio (OR) 1.04, intervalo de confianza 95% (CI) 1.01–1.08], tuvieron mayores tasas de transformación hemorrágica (OR 4.03, 95% CI 1.44–11.22), presentaron mayor detección de oclusión de gran vaso intracraneal (OR 4.29, 95% CI 2.31–7.97) (P < 0.0001), tuvieron volúmenes indexados de aurícula izquierda más grandes (OR 1.03, 95% CI 1.01–1.1) (P =0.0002) y tuvieron niveles analíticos mayores de péptido natriurético cerebral (OR 1.01, 95%CI 1.0–1.1). La mayor edad y la presencia de oclusión de vaso intracraneal estuvieron independientemente asociados a la detección de FA paroxística (OR 1.06, 95% CI 1.00–1.16, y OR 4.58, 95% CI 2.27– 21.38, respectivamente). En otra cohorte se realizó un estudio con ecocardioscopia ultra portátil de mano en la fase aguda del ictus en 130 pacientes, con una concordancia del 0.95 con respecto al estudio estándar, se detectaron cardiopatías embolígenas en el 16% ( 17/104) de los ictus criptogénicos en el estudio focalizado con ecocardioscopia ultra portátil . La oclusión de gran vaso intracraneal (OR: 4.24, 95% CI: 1.01–17.85) y la insuficiencia cardíaca crónica (OR: 13.25, 95% CI: 3.54–49.50) fueron predictores independientes de detección de cardiopatía embolígena mayor. Conclusiones Las estrategias diagnósticas mediante estudios focalizados con ecocardioscopia ultra portátil de mano en fase aguda y la tecnología textil Holter wearable de inicio precoz y continuada son útiles en el estudio etiológico del ictus criptogénico. La oclusión de gran vaso intracraneal, la edad del paciente y el antecedente de insuficiencia cardíaca fueron marcadores independientes de detección de fuente embólica y de detección de FA.
Introduction: The diagnostic approach to the cause of ischemic stroke is of special importance, because stroke recurrences are usually the result of the same pathology as the previous one, up to 25% of strokes are classified as cryptogenic stroke or of unknown cause after hospital admission. The objective is to implement a diagnostic protocol in the acute phase of cryptogenic stroke to identify etiologies of high embolic potential that cause severe strokes for the optimization of secondary stroke prevention. Methods: Prospective analysis of patients with cryptogenic strokes to analyze strategies designed for the detection of embolic sources. In a cohort of patients, cardiac holter textile monitoring was assessed at the early onset of the acute stroke in the hospital phase, and continuously monitoring was carried until 28 days of outpatient stage. The detection rate of Atrial Fibrillation and the predictive detection markers were analyzed by means of a multimodal analysis combining different clinical, neuroimaging and baseline cardiac predictors of each patient. In another cohort of patients, the utility of ultra-portable hand-held echocardiography was evaluated for the detection of major cardio embolic heart disease, that were identified as severely depressed ejection fraction or embolic valve disease. It has been evaluated the reliability of hand held echocardiography in comparison to the standard echocardiographic study as well as the predictors of major cardioembolic source detection. Results Among 296 patients, 264 patients completed monitoring with a paroxysmal AF detection rate of 23.1% (61/264) after early and continuous monitoring for 28 days. Patients with detection of AF were older [odds ratio (OR) 1.04, 95% confidence interval (CI) 1.01–1.08], had higher rates of hemorrhagic transformation by neuroimaging (OR 4.03, 95% CI 1.44–11.22), presented greater detection of large intracranial vessel occlusion (OR 4.29, 95% CI 2.31–7.97) (P <0.0001), had larger indexed left atrial volumes (OR 1.03, 95% CI 1.01–1.1) (P = 0.0002) and had higher analytical levels of brain natriuretic peptide (OR 1.01, 95% CI 1.0–1.1) compared to patients without AF detection. The elderly age and the presence of intracranial vessel occlusion were independently associated with the detection of paroxysmal AF (OR 1.06, 95% CI 1.00–1.16, and OR 4.58, 95% CI 2.27– 21.38, respectively). In another cohort, a study with ultra-portable handheld echocardiography was carried out in the acute phase of stroke in 130 patients with a concordance of 0.95 in comparison to the standard study. Major cardio embolic source was detected in 16% (17/104) of cryptogenic strokes in the focused study with ultra-portable echocardiography. Large vessel occlusion of intracranial vessel (odds ratio [OR]: 4.24, 95% confidence interval [CI]: 1.01_17.85) and chronic heart failure (OR: 13.25, 95% CI: 3.54_49.50) were independent predictors of detection of major cardioembolic source. Conclusions Diagnostic strategies through focused studies with ultra-portable hand-held echocardiography in the acute phase and early-onset continuous holter wearable textile are useful in the etiological study of cryptogenic stroke. Large intracranial vessel occlusion, age of the patient and chronic heart failure were independent markers of embolic sources and detection of Atrial Fibrillation.
Universitat Autònoma de Barcelona. Programa de Doctorat en Medicina
Fatah, Jabir Al, and Ala'a Alshaban. "An agent-based decision support model for assessment of stroke patient transport policies: The case of choosing hospital for diagnosis." Thesis, Malmö universitet, Fakulteten för teknik och samhälle (TS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20298.
Full textSahlin, Carin. "Sleep apnea and sleep : diagnostic aspects." Doctoral thesis, Umeå : Umeå universitet, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-18959.
Full textLiebl, Diana Andrea [Verfasser]. "Delir auf Stroke-Unit und neurologischer Intensivstation : Analyse von Vitalparametern, Risikofaktoren und Diagnosen im klinischen Setting / Diana Andrea Liebl." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2020. http://d-nb.info/1238074170/34.
Full textFordell, Helena. "Virtual Reality for Enriched Rehabilitation of Stroke Patients with Spatial Neglect : Diagnostics and the Rehabilitation Effect on Spatial Attention and Neuronal Activity." Doctoral thesis, Umeå universitet, Institutionen för farmakologi och klinisk neurovetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-141920.
Full textChueh, Juyu. "Mechanical Flow Restoration in Acute Ischemic Stroke: A Model System of Cerebrovascular Occlusion: A Dissertation." eScholarship@UMMS, 2010. https://escholarship.umassmed.edu/gsbs_diss/493.
Full textHingot, Vincent. "Development of ultrasound localization microscopy to measure cerebral perfusion during stroke : a study in mouse models prior to its translation in humans." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS562.
Full textUltrasonography is a medical imaging technique that uses ultrasound. A typical examination is based on two main modes, B-mode for anatomical imaging and Doppler mode for blood flowimaging. In the context of cerebrovascular diseases, ultrasonography is used primarily to estimate alterations in blood flow in major cerebral arteries through transcranial Doppler. However, the low quality of the images through the skull does not allow ultrasound to be as efficient as magnetic resonance imaging. Recent advances in ultrasound have led to the emergence of new modes of imaging, particularly a super-resolution ultrasound technique that increases the resolution and contrast of vascular imaging. It is based on the rapid imaging of microbubbles commonly used as contrast agents for ultrasound. This method has shown that it can image even the smallest vessels and allows to perform cerebral perfusion imaging more effectively than Transcranial Doppler. This would allow earlier and more effective management of stroke patients. Before being used in a medical context, this ultrasound super-resolution technique must be better understood, better realized, and adapted to the particular context of cerebrovascular diseases. In particular, this manuscript will discuss how to best form images, and will look at the actual performance of super-resolved imaging. We will also discuss the possibilities of correcting artefacts due to physiological movements and the possibilities of using super-resolved imaging in various organs, particularly the kidneys, tumors and spinal cord. Finally, imaging of models of cerebral ischemia in rodents will enable the construction of vascular biomarkers suitable for the diagnosis of cerebrovascular pathologies and should aid translation into human patients
Brand, Jannik [Verfasser]. "Präklinische Diagnostik und Therapie in einer Mobilen Stroke Unit zur Verkürzung der Zeit bis zur intravenösen Thrombolyse beim akuten ischämischen Schlaganfall / Jannik Brand." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2020. http://d-nb.info/1219507865/34.
Full textMsayib, Yunus. "Quantifying impaired metabolism following acute ischaemic stroke using chemical exchange saturation transfer magnetic resonance imaging." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:a98323ce-5998-436d-bca4-09df549cf191.
Full textMaier, Martina. "The Principles of advanced virtual reality-based neurorehabilitation how the training in virtual reality and based on principles can support the recovery and diagnosis of disabilities after stroke." Doctoral thesis, Universitat Pompeu Fabra, 2020. http://hdl.handle.net/10803/669676.
Full textVelupandian, Uma Maheshwari. "The diagnosis of Patent Foramen Ovale, its importance in migraine, and an insight into its genetic basis." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/the-diagnosis-of-patent-foramen-ovale-its-importance-in-migraine-andan-insight-into-its-genetic-basis(d13d4a0b-b1f3-437a-899a-960015f9b33f).html.
Full textBrunner, Clément. "Functional ultrasound imaging (fUSi) to assess brain function in physiological and pathological conditions : application to stroke." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCB123/document.
Full textSince the middle of the 20th century, functional imaging technologies are making an increasing impact on our understanding on brain functions in both physiological and pathological conditions. Even if fMRI is nowadays one of the most used tool for whole brain imaging in pre-clinical and clinical studies, it lacks sufficient spatiotemporal resolution and sensitivity to assess fine brain function and activity. Functional ultrasound imaging (fUSi) has been recently developed and presents a potential to complement fMRI and other existing brain imaging modalities. Contrary to conventional ultrasound using focus beams, fUSi relies on hemodynamic imaging based on ultrasound plane-wave illumination to detect red blood cells movement and velocity in brain micro-vessels. Consequently, the fUSi signal is indirectly related to brain activity and it is therefore important to better understand the mechanisms of the neurovascular coupling linking neural activity and cerebral blood changes. Here again, fUSi may provide relevant information about disease processes in preclinical models but also in humans. First, I will present recent technical developments allowing in vivo fUSi (i) in chronic condition, (ii) in freely moving and behaving rats and (iii) in rodents and human brain capillaries. Second, I will demonstrate how fUSi could provide new insights in brain pathologies such as stroke
Walvick, Ronn P. "Magnetic Resonance Imaging of Neural and Pulmonary Vascular Function." Digital WPI, 2010. https://digitalcommons.wpi.edu/etd-dissertations/372.
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