Dissertations / Theses on the topic 'Physiological and vital signs'
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Berelowitz, Jonathan. "The development of a neonatal vital signs database." Master's thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/26607.
Bruijns, Stevan Raynier. "From anxiety to haemorrhage : describing the physiological effects that confound the prognostic inferences of vital signs in injury." Doctoral thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/2855.
Shah, Syed Ahmar. "Vital sign monitoring and data fusion for paediatric triage." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:80ae66e3-849b-4df1-b064-f9eb7530200d.
Witt, Alexander W. "Using Ballistocardiography to Perform Key Distribution in Wearable IoT Networks." Digital WPI, 2017. https://digitalcommons.wpi.edu/etd-theses/829.
Walcon, Erin Colleen. "Vital spaces/vital signs : young people, performance, identity and dialogue." Thesis, University of Exeter, 2012. http://hdl.handle.net/10871/9785.
Chandrasekaran, Vikram. "Measuring Vital Signs Using Smart Phones." Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc33139/.
Tlemsani, Fatima Zohra. "Mesure des transferts thermiques et hydriques par intégration des fluxmètres thermiques textiles dans un vêtement pour les enfants en situation de polyhandicap." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILN004.
Children with cerebral palsy experience significant psychological stress during rehabilitation. This is related to many psychological factors such as fear, anxiety and phobias, and physical factors such as the weight of the rehabilitation devices, their friction on the body, and the pain related to motor problems. In the state of art, it has been shown that researchers have followed an approach using physiological parameters as biomarkers of stress. They mainly use biosignals such as skin temperature (ST), electrocardiography (ECG), electrodermal activity (EDA), electromyography (EMG), respiration, pupil diameter, electroencephalography (EEG) for stress assessment. Since thermal and hydric exchanges are a function of temperature evolution, they can also be an indicator of stress, especially since they represent an indicator of thermal discomfort. For this purpose, in this work, a textile heat fluxmeter, which has characteristics of permeability, flexibility and suitability for use on the skin, has been developed, analyzed and characterized. An experimental device was set up in order to establish a calibration system of the fluxmeter. Then the thermo-hydric behavior of the fluxmeters was analyzed under laboratory conditions. The developed textile heat fluxmeter showed similar sensitivities as the gold standard sensor. Moreover, the study of the fluxmeter performance showed a similar behavior to that of the standard sensor. Therefore, stress tests were conducted on 20 healthy adult volunteers of different ages and genders, women and men, and on two children, 7 and 12 years old, also healthy. Three different types of activities were performed to induce stress, namely, mathematical activities, virtual reality games and a sports activity. This was with the objective of stimulating different types of stress, i.e. positive stress (eustress), negative stress and physical stress, respectively. The results of the tests show a similar behavior between the two fluxmeters (textile and standard), and a positive correlation between the behavior of the electrocardiogram and the fluxmeter. A relation was established in the majority of cases between the volunteers' feedback on the stress they felt and their thermo-hydric response measured by the textile heat fluxmeter
Yang, Fan. "Object Detection for Contactless Vital Signs Estimation." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42297.
Johnson, Kimberly D. "Patients’ Vital Signs and the Length of Time between the Monitoring of Vital Signs during Times of Emergency Department Crowding." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1301014586.
Roald, Nikolai Grov. "Estimation of Vital Signs from Ambient-Light Non-Contact Photoplethysmography." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elektronikk og telekommunikasjon, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-20869.
Tariq, Abubakar. "Vital signs monitoring using Doppler radar and on-body antennas." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4332/.
Collin, Frida. "Recognising deterioration: nurses’documentation of vital signs–a systematic literature review." Thesis, Örebro universitet, Institutionen för medicinska vetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-90274.
Gasser, William W. "Using five vital signs of spiritual health to evaluate churches." Theological Research Exchange Network (TREN), 1999. http://www.tren.com.
Russon, Ryan K. "Computerized Measurement of Psychological Vital Signs in a Clinical Setting." [Tampa, Fla. : s.n.], 2003. http://purl.fcla.edu/fcla/etd/SFE0000097.
Sekak, Fatima. "Microwave radar techniques and dedicated signal processing for Vital Signs measurement." Thesis, Université de Lille (2018-2021), 2021. https://pepite-depot.univ-lille.fr/LIBRE/EDENGSYS/2021/2021LILUN033.pdf.
In the context of securing transportation systems, short-range monitoring of people's activity, in particular the driver's activity in a vehicle, is a major issue in the improvement of the driver assistance system. The application targeted in this work concerns mainly the railway domain.Respiratory and heart rates of the driver are key indicators for the evaluation of the physiological state. Conventional methods of measuring these vital signs rely on sensors operating in direct contact with the skin. Therefore, the intrusive character of these solutions is not suited for the transportation domain, especially because of the induced discomfort. In this work, a microwave radar solution operating at low power is proposed for the continuous measurement of respiratory and cardiac activity signals. In particular, physiological signals (heartbeat, mechanical movement of the rib cage) are indicators of human activity that can be detected at a distance (up to ten meters) using radiated microwave electromagnetic waves.Although the literature shows a growing interest in the development of radar techniques dedicated to the surveillance of people, there is no robust, sensitive and accurate commercial device available to date. A detailed analysis of the electrical and geometrical parameters of the radar technique is proposed in this work in order to identify the sources of uncertainties, to define the optimal parameters, to validate experimentally the proposed solution. An original signal processing, based on the cyclostationary approach, is implemented in order to extract the parameters of interest in reference or disturbed measurement environments. The proposed hardware solutions associated with an optimal signal processing allow to foresee radar architectures adapted to non-laboratory contingencies
Babar, Ayesha, and Carine Kanani. "Monitoring of Vital Signs Parameters with ICTs : A Participatory Design Approach." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-97030.
Myrsten, Erik. "Datoriserad screening av barns neurokognitiva funktion: Validering av testbatteriet CNS Vital Signs." Thesis, Stockholm University, Stockholm University, Department of Psychology, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-36852.
Yien, Chris Tak Ming. "Vital signs monitoring for a patient data management system in an ICU." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=69721.
The Vital Signs Monitoring System was developed in C language under the Presentation Manager window environment, and the operating system environment is OS/2 version 2.0.
Orrie, Orika. "Smartphone application architecture and security for patient vital signs sensors and indicators." Diss., University of Pretoria, 2005. http://hdl.handle.net/2263/66235.
Dissertation (MEng)--University of Pretoria, 2016.
Electrical, Electronic and Computer Engineering
MEng
Unrestricted
Stevenson, Jean E. "Documentation of vital signs in electronic health records : a patient safety issue." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/12704/.
Pullon, Rebecca. "Monitoring and analysis of antenatal and postnatal changes in maternal vital signs." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:c0992a87-29f1-40cc-8ff0-368cd1944bc9.
Quinn, Colin Patrick. "Vital signs : costly signaling and personal adornment in the near eastern early neolithic." Online access for everyone, 2006. http://www.dissertations.wsu.edu/Thesis/Fall2006/c_quinn_121106.pdf.
Novak, Timothy S. "Vital Signs of U.S. Osteopathic Medical Residency Programs Pivoting to Single Accreditation Standards." Thesis, University of South Florida, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10690580.
Osteopathic physician (D.O.) residency programs that do not achieve accreditation under the new Single Accreditation System (SAS) standards by June 30, 2020 will lose access to their share of more than $9,000,000,000 of public tax dollars. This U.S. Centers for Medicare & Medicaid Services (CMS) funding helps sponsoring institutions cover direct and indirect resident physician training expenses. A significant financial burden would then be shifted to marginal costs of the residency program’s sponsoring institution in the absence of CMS funding. The sponsoring institution’s ability or willingness to bare these costs occurs during a time when hospital operating margins are at historic lows (Advisory.com /Daily Briefing /May 18, 2017 | The Daily Briefing / Hospital profit margins declined from 2015 to 2016, Moody's finds). Loss of access to CMS funding may result in potentially cataclysmic reductions in the production and availability of primary care physicians for rural and urban underserved populations. Which osteopathic residency programs will be able to survive the new accreditation requirement changes by the 2020 deadline? What are some of the defining attributes of those programs that already have achieved “initial accreditation” under the new SAS requirements? How can the osteopathic programs in the process of seeking the new accreditation more effectively “pivot” by learning from those programs that have succeeded? What are the potential implications of SAS to both access and quality of health care to millions of Americans? This report is based upon a study that examined and measured how osteopathic physician residency programs in the U.S. are accommodating the substantive structural, financial, political and clinical requirements approximately half way through a five-year adaptation period. In 2014, US Graduate Medical Education (GME) physician program accreditation systems formally agreed to operate under a single accreditation system for all osteopathic (D.O) and allopathic (M.D.) programs in the U.S. Since July 1, 2015, the American Osteopathic Association (AOA) accredited training programs have been eligible to apply for Accreditation Council for Graduate Medical Education (ACGME) accreditation. This agreement to create a Single Accreditation System (SAS) was consummated among the AOA, the American Association of Colleges of Osteopathic Medicine (AACOM) and ACGME with a memorandum of understanding. As this research is published, the ACGME is transitioning to be the single accreditor for all US GME programs by June 30, 2020. At that time, the AOA would fully relinquish all its GME program accreditation responsibilities. The new SAS operates under published ACGME guidelines and governance. Business policy and health care resource allocation question motivated this research. Failure of osteopathic programs to “pivot” to the new standards could result in fewer licensed physicians being produced in the high demand primary care field. Potential workforce shortage areas include urban and especially rural populations (CRS Report 7-5700 R44376 Feb 12, 2016). Large physician shortages already have been projected to care for a rapidly aging US population without considering the impact of the GME accreditation changes currently underway (Association of American Medical Colleges 2017 Key Findings report www.aamc.org/2017projections). The goal of this research is to provide osteopathic GME programs practical insights into characteristics of a sample of osteopathic GME programs that have successfully made the “pivot” into SAS requirements and been accredited by ACGME and those that have not. The study seeks to better understand the experiences, decisions, challenges and expectations directly from osteopathic programs directors as they strive to meet the realities of the new SAS requirements. Do programs that are already accredited differ significantly from those that have not? How do characteristics such as program size, geographic locations, clinical program components, program sponsor structure, number and experience of faculty and administration, cost planning and perceived benefits of the movement to SAS factor into successfully meeting the new requirements before the 2020 closing date? A cross-sectional research survey was designed, tested and deployed to a national sample of currently serving osteopathic GME program directors. The survey elicited data about each program’s “pivot” from AOA GME accreditation practices and guidelines to the new Single Accreditation System (SAS). The survey instrument was designed to obtain information about patterns in osteopathic GME program curricula, administrative support functions, faculty training, compliance requirements and program director characteristics shared by those programs that have been granted “initial accreditation” by the Accreditation Council for Graduate Medical Education (ACGME) who administer SAS. Thirty five (35) osteopathic GME program directors responded to the 26 question survey in June 2017. Descriptive statistics were applied and central tendency measures determined. The majority of survey respondents were Doctors of Osteopathic Medicine (D.O.s) from specialty residency programs sponsoring an average of 16 residents. (Abstract shortened by ProQuest.)
Pitts, David Geoffrey. "The design and evaluation of discrete wearable medical devices for vital signs monitoring." Thesis, Cranfield University, 2015. http://dspace.lib.cranfield.ac.uk/handle/1826/10298.
Knutsson, Fröjd Lisa, and Marika René. "Mobile documentation of vital signs : A Participatory Design project at a Swedish hospital." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-48997.
Kalvér, Henrik. "Quai-Passive 5.8 GHz Front-End Design and Implementation for Vital Signs Detection." Thesis, Linköpings universitet, Fysik och elektroteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-146270.
Holzhausen, Rudolf. "A clinical patient vital signs parameter measurement, processing and predictive algorithm using ECG." Thesis, Brunel University, 2011. http://bura.brunel.ac.uk/handle/2438/6466.
Conte, Ermanna. "Multiuser MIMO downlink systems with limited feedback and remote sensing of vital signs." Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3422366.
Questa tesi di dottorato raccoglie i contributi principali dell'attività di ricerca svolta durante i tre anni del mio percorso di dottorato. Come suggerisce il titolo, l'attivita' di ricerca condotta in questo triennio è divisa in due parti principali. La prima riguarda l'argomento di ricerca che ho seguito sin dall'inizio sui sistemi di downlink Multiuser MIMO con feedback limitato; è parte di un ampio filone di ricerca finalizzato alla progettazione della quarta generazione di sistemi cellulari, e piu' in generale di futuri sistemi di comunicazioni wireless con terminali mobili. In particolare, i miei studi si sono concentrati sui sistemi cellulari in cui le stazioni base sono provviste di antenne multiple; la presenza di piu' antenne alla stazioni base fornisce dei gradi di liberta' nelle comunicazioni di downlink, ovvero nelle comunicazioni dalla stazioni base ai terminali mobili, che possono essere utilizzati per servire piu' di un utente simultaneamente e ottenere un rate piu' elevato rispetto al caso singola antenna. A tal fine e' pero' necessario fornire alla stazioni base la conoscenza dei canali di downlink per ciascuno degli utenti che intende servire; tanto piu' fine e' la stima del canale in possesso della stazioni base, tanto maggiore e' il rate raggiungibile in questo schema di downlink. La progettazione di strategie di feedback, con cui i terminali trasmettono su un canale dedicato informazioni sul canale di downlink alla stazioni base e' quindi un aspetto di grande interesse, essendo il canale di feedback a rate limitato (dell'ordine di qualche bit/simbolo). In particolare, mi sono occupata della scelta del quantizzatore e delle strategie di feedback che tenessero conto della correlazione temporale del canale. All'inizio del triennio (gennaio 2007) la maggior parte delle analisi teorica era stata sviluppata; di conseguenza, il mio lavoro è incentrato sull'ottimizzazione dei parametri del sistema, tenendo conto delle limitate risorse disponibili in uno scenario realistico. I contributi principali riguardano la progettazione del canale di feedback a rate limitato e algoritmi di scheduling subottimi a bassa complessità, sia per sistemi single carrier che in uno scenario OFDM. In particolare, i contributi riguardanti la progettazione del canale di feedback a rate limitato traggono vantaggio dalla correlazione temporale del canale, utilizzando sistemi di quantizzazione con memoria. E' stato inoltre proposto un algoritmo di scheduling a bassa complessita', e si sono studiate le prestazioni in confronto con i principali algoritmi presenti in letteratura. Tale confronto evidenzia che a parita' di condizioni, l'algoritmo da noi proposto e' caratterizzato da prestazioni analoghe alle altre soluzioni e molto vicine all'ottimo, sia in termini di throughput che di outage throughput, ma con una minor complessita'. La seconda e più recente parte della tesi affronta l'argomento della stima di segnali vitali, ovvero la respirazione e il battito cardiaco, attraverso un sistema remoto, dove non c'e' contatto tra il sensore ed il target a distanza. Questo argomento e' stato affrontato, in collaborazione con Philips Research, Eindhoven (NL), dove sono stata come Visiting Student da ottobre 2008 a maggio 2009. Ho studiato la tecnologia ultra wide band per il rilevamento remoto dei segni vitali, con il vincolo di rispettare i limiti di potenza imposti dalla legislazione vigente. Lo studio e' stato condotto sia analiticamente, che tramite simulazioni, ed infine attraverso l'allestimento di una demo e la raccolta di risultati sperimentali. In particolare, ho proposto un modello generico per il segnale ricevuto e descritto analiticamente la modulazione che i segnali vitali operano sui principali parametri del segnale ricevuto. Sulla base di questo modello, ho studiato le tecniche di rilevazione del respiro e del cuore periodi di battere; in particolare, ho proposto un metodo di stima del periodo a bassa complessita', che migliora le prestazioni di altre soluzioni proposte in letteratura, sia in termini di errore quadratico medio che di complessita' richiesta. Infine, è stato derivato lo stimatore maximum likelihood (ML), ed è stato verificato che il metodo proposto risulta da un'approssimazione del metodo ML.
Zeitz, Kathryn. "Post-operative observations, ritualised or vital in the detection of post-operative complications." Title page, contents and abstract only, 2003. http://web4.library.adelaide.edu.au/theses/09PH/09phz483.pdf.
Lee, Y. D. (Young-Dong). "Wireless vital signs monitoring system for ubiquitous healthcare with practical tests and reliability analysis." Doctoral thesis, Oulun yliopisto, 2010. http://urn.fi/urn:isbn:9789514263880.
Oesch, Martha Elizabeth. "Bedpans, vital signs, and meds : hospital restructuring and the skill polarization of nursing work." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/69267.
Fundytus, Marian Elaine. "Central nervous system and peripheral signs of opioid abstinence." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56639.
Systemic administration of M3G alone and in combination with morphine produced no withdrawal-like behaviors. However, when these drugs were given centrally, withdrawal-like behaviors were observed in conjunction with seizures. The seizures were not attenuated by naloxone (but were alleviated by an anti-convulsant), indicating that they were not mediated by opioid receptors. The behaviors resembled those seen by previous investigators following high doses of morphine. The results suggest that M3G may play a role in the toxic effects of high doses of morphine.
Vasini, Fabio. "Integration of Internet of Things and Cloud computing. A case study on vital signs monitoring." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/10204/.
Fleming, Susannah. "Measurement and fusion of non-invasive vital signs for routine triage of acute paediatric illness." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:840d94b0-041f-4b15-8b37-c2e37c999f3e.
Mikhelson, Ilya V. "Real-Time Detection and Tracking of Vital Signs with an Ambulatory Subject Using Millimeter-Wave Interferometry." Thesis, Northwestern University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3595683.
Finding a subject's heart rate from a distance without any contact is a difficult and very practical problem. This kind of technology would allow more comfortable patient monitoring in hospitals or in home settings. It would also allow another level of security screening, as a person's heart rate increases in stressful situations, such as when lying or hiding malicious intent. In addition, the fact that the heart rate is obtained remotely means that the subject would not have to know he/she is being monitored at all, adding to the efficacy of the measurement.
Using millimeter-wave interferometry, a signal can be obtained that contains composite chest wall motion made up of component motions due to cardiac activity, respiration, and interference. To be of use, these components have to be separated from each other by signal processing. To do this, the quadrature and in-phase components of the received signal are analyzed to get a displacement waveform. After that, processing can be done on that waveform in either the time or frequency domains to find the individual heartbeats. The first method is to find the power spectrum of the displacement waveform and to look for peaks corresponding to heartbeats and respiration. Another approach is to examine the signal in the time domain using wavelets for multiresolution analysis. One more method involves studying the statistics of the wavelet-processed signal. The final method uses a heartbeat model along with probabilistic processing to find heartbeats.
For any of the above methods to work, the millimeter-wave sensor has to be accurately pointed at the subject's chest. However, even small subject motions can render the rest of the gathered data useless as the antenna may have lost its aim. To combat this, a color and a depth camera are used with a servo-pan/tilt base. My program finds a face in the image and subsequently tracks that face through upcoming frames. The pan/tilt base adjusts the aim of the antenna depending on the subject's position. This makes the entire system self-aiming and also allows the subject to move to a new location and to have data acquisition continue.
de, Mander Jessica, and Jonathan Danielson. "Modified Early Warning Score bland onkologiska patienter innan dödsfall." Thesis, Uppsala universitet, Institutionen för folkhälso- och vårdvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-215577.
Background: Modified Early Warning Score, MEWS, is a scoring system (0-17 points) for assessment of patients’ vital signs. The function of MEWS is to detect deteriating patients at an early stage, and being able to put in adequate treatment before their physical condition worsens. The benefits from using MEWS on oncology patients have so far been researched to small extent. A study from 2012 indicates that MEWS is not an effective tool for detecting deteriation in oncology patients. Objective: To research if oncology patients have scores 0-17 on MEWS measurements the week before they are deceased. The writers also intend to research which certain parameters within MEWS caused higher overall scores, and lastly whether there are any differences in scores between men and women. Methods: A retrospective review of medical records was performed on a total of 104 MEWS measurements belonging to 70 deceased patients. Results: The main results show an average MEWS of 2,99 points during the last week of the patients’ lives. Respiratory rate was the variable within MEWS to cause elevated scores (≥1) most often. The average MEWS increased from 3,13 points the seventh day before death to 8 points the last day before death, but due to the low frequency of measurements from the last day of the patients’ lives, it is not possible to make any assumptions based on these results. Furthermore, the initial loss of patients meeting the inclusion criteria was substantial due to low prevalence of registered MEWS. Conclusion: The results indicate that MEWS is not used on oncology patients to a great extent. It is not, however, possible to determine whether MEWS is a relevant assessment tool in care of oncology patients, and further research is therefore needed.
Leonard, Martha Maria. "A description of final year nursing students' ability to recognize abnormal vital signs recordings and clinical decision-making process." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/6663.
Includes bibliographical references.
The aim of this study was to determine whether final year nursing students can recognize and respond to abnormal vital sign recordings, and to analyse their clinical decision-making processes.
Lewandowski, J. "Mobile application of artificial intelligence to vital signs monitoring : multi parametric, user adaptable model for ubiquitous well-being monitoring." Thesis, Coventry University, 2014. http://curve.coventry.ac.uk/open/items/fc80e93c-1a7e-419d-84c7-eaed12d4a953/1.
Dall'Ora, Chiara. "The association of nurses' shift characteristics, missed vital signs observations and sickness absence : retrospective observational study using routinely collected data." Thesis, University of Southampton, 2017. https://eprints.soton.ac.uk/417870/.
Kyriacos, Una. "The development, validation and testing of a vital signs monitoring tool for early identification of deterioration in adult surgical patients." Doctoral thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/11688.
Tang, Fohai. "A Mobile System for Vital Sign’s Data Collection and Data Presentation." Thesis, Högskolan Kristianstad, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-9369.
Bobbia, Serge. "Vers le développement d'un capteur photoplétysmographique sans contact." Thesis, Bourgogne Franche-Comté, 2019. http://www.theses.fr/2019UBFCK003/document.
Heart-rate estimation performed with remote photoplethysmography is a very active research field. Since pioneer works in 2010, which demonstrated the feasibility of the measure with low-grade consumers’ camera (webcam), the number of scientific publications have increased significantly in the domain. Hence, we observe a multiplication of the methods in order to retrieve the photoplethysmographic signal which has led to an increased precision and quality of the heart-rate estimation. Region of interest segmentation is a key step of the processing pipeline in order to maximize the quality of the measured signal. We propose a new method to perform remote photoplethysmographic measurement using an implicit living skin identification method. Hence, we have shown that our approach lead to an improvement in both quality of the signal measured and precision of the heart-rate estimation by favoring more contributive area. As we are working with hardware integration constraint, we propose a new superpixels segmentation method which requires significantly less computation power than state of the art methods by reducing the algorithmic complexity of this step. Moreover, we have demonstrated the integration and real time capabilities by implementing our solution to an embedded device. All of our proposed method have been evaluated through different experimentations. Our new segmentation method, called IBIS, have been compared to state of the art methods to quantify the quality of the produced segmentation. To quantify the impact of our approach on the quality of the photoplethysmographic measure, we have implemented and compared state of the art methods with our proposed method. For both the superpixels segmentation and remote heart-rate estimation, our methods have shown great results and advantages compared to state of the art ones. Our works have been reviewed by the scientific community through several conference presentations and journal publications
Medeiros, Sebastiao Freitas de. "Physiological aspects of the [beta]-core hCG fragment /." Title page, contents and abstract only, 1991. http://web4.library.adelaide.edu.au/theses/09PH/09phm488.pdf.
Batterson, Andrew. "Effects of a 12 hour shift roster on physiological heat strain: a case study." Thesis, Federation University Australia, 1993. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/164896.
Stapleton, Craig. "An investigation of the physiological concomitants of worry in a cognitive model of generalised anxiety disorder." Thesis, Federation University Australia, 2005. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/165027.
Magalhães, Ana Catarina Monteiro. "Zebrafish enclosure for PET imaging: control of the environmental conditions and vital signs." Master's thesis, 2021. http://hdl.handle.net/10773/33683.
O peixe zebra tem vindo a demonstrar ser um excelente modelo animal para a investigação em diversas áreas da biomedicina, uma vez que apresenta características únicas, como o baixo custo, simplicidade de manutenção, curto ciclo de vida, genoma sequenciado, que facilita a sua manipulação genética e alguns mecanismos fisiológicos semelhantes aos do ser humano. Em investigação pré-clínica, muitas vezes, é necessário avaliar determinados processos metabólicos que ocorrem no interior dos modelos animais em estudo. Para isso, recorre-se usualmente a técnicas de imagem molecular e funcional, como por exemplo a Tomografia por Emissão de Positrões (PET do inglês Positron Emission Tomography). Contudo, este tipo de técnica médica exige que o animal esteja vivo, o que, em certa medida, acarreta uma dificuldade acrescida relativamente aos sistemas de imagem morfológica. No presente trabalho pretende-se desenvolver um habitáculo para peixes zebra que permita realizar a aquisição de imagens PET in vivo, enquanto se monitoriza, em tempo real, o bem-estar do animal, através da análise do batimento cardíaco do mesmo. Assim, o habitáculo do peixe zebra foi pensado, desenhado e construído em conjunto com o sistema de monitorização dos sinais vitais (LED infra vermelho e fotodíodo) e da temperatura da _agua (termístor). O sistema desenvolvido foi testado com peixes zebra em condições controladas e simultaneamente foram adquiridos vídeos dos peixes zebra, onde visualmente é possível quantificar o batimento do coração e dos opérculos por métodos de visão computacional. A gama de valores obtidos por ambos os métodos para o batimento cardíaco do peixe zebra foi de 80 - 130 bpm, conforme esperado. Além disso, também se verificou que o movimento do opérculo dificulta a medição do batimento cardíaco, contudo o seu efeito pode ser atenuado. Assim, o sistema desenvolvido tem a particularidade de monitorizar tanto a temperatura da agua como os sinais vitais do peixe zebra, garantindo a sua estabilidade fisiológica durante os exames de imagem médica.
Mestrado em Engenharia Biomédica
Schmidt, P. E., P. Meredith, D. R. Prytherch, D. Watson, V. Watson, R. M. Killen, P. Greengross, Mohammed A. Mohammed, and G. B. Smith. "Impact of introducing an electronic physiological surveillance system on hospital mortality." 2015. http://hdl.handle.net/10454/7386.
Background Avoidable hospital mortality is often attributable to inadequate patient vital signs monitoring, and failure to recognise or respond to clinical deterioration. The processes involved with vital sign collection and charting; their integration, interpretation and analysis; and the delivery of decision support regarding subsequent clinical care are subject to potential error and/or failure. Objective To determine whether introducing an electronic physiological surveillance system (EPSS), specifically designed to improve the collection and clinical use of vital signs data, reduced hospital mortality. Methods A pragmatic, retrospective, observational study of seasonally adjusted in-hospital mortality rates in three main hospital specialties was undertaken before, during and after the sequential deployment and ongoing use of a hospital-wide EPSS in two large unconnected acute general hospitals in England. The EPSS, which uses wireless handheld computing devices, replaced a paper-based vital sign charting and clinical escalation system. Results During EPSS implementation, crude mortality fell from a baseline of 7.75% (2168/27 959) to 6.42% (1904/29 676) in one hospital (estimated 397 fewer deaths), and from 7.57% (1648/21 771) to 6.15% (1614/26 241) at the second (estimated 372 fewer deaths). At both hospitals, multiyear statistical process control analyses revealed abrupt and sustained mortality reductions, coincident with the deployment and increasing use of the system. The cumulative total of excess deaths reduced in all specialties with increasing use of the system across the hospital. Conclusions The use of technology specifically designed to improve the accuracy, reliability and availability of patients’ vital signs and early warning scores, and thereby the recognition of and response to patient deterioration, is associated with reduced mortality in this study.
Norris, Patrick R. "Toward new vital signs tools and methods for physiologic data capture, analysis, and decision support in critical care /." Diss., 2006. http://etd.library.vanderbilt.edu/ETD-db/available/etd-04022006-161638/.
Simões, Rafael. "Remote vital signs monitoring: user's guide." Master's thesis, 2008. http://hdl.handle.net/10316/12317.
Lin, Li-Min, and 林立民. "A PDA-Based Vital Signs measurement System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/58687323628714070368.
國立中央大學
電機工程研究所
98
Human life gets longer as time goes by that leads to aging of population structure. Taking good care of aged persons and reducing health care costs become very important issues. Home care is a solution to deal with these issues. The purpose of this study is to develop vital signs measurement platform by using a personal digital assistant (PDA) whose operation system is Windows Mobile 5.0. This system lets user measure vital signs and save data conveniently, and therefore reduces health care costs. The vital signs that were measured in this study are: electrocardiography, pulse, blood pressure and body temperature signals. These analog vital signs were converted into digital signals with a microprocessor; the digitized data were then transmitted to a PDA by a Bluetooth module; finally a user interface on PDA was developed with Microsoft Visual Studio C# 2005. Users can read each vital sign on the screen of PDA at the same time and the system save these signals automatically. A cuff-less blood pressure estimation method was applied to our system to make the system easy to use in home care application.