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Abbott, J. Haxby, i n/a. "Accuracy in the diagnosis of lumbar segmental mobility disorders". University of Otago. Department of Anatomy & Structural Biology, 2005. http://adt.otago.ac.nz./public/adt-NZDU20070205.094640.
Pełny tekst źródłaZannoni, Letizia <1982>. "Accuracy of new sonographic markers in the diagnosis of adenomyosis". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amsdottorato.unibo.it/7818/3/ZANNONI%20LETIZIA_TESI%20DOTTORATO.pdf.
Pełny tekst źródłaObiettivo: valutare le capacità diagnostiche dei marker ecografici già noti di adenomiosi e di due innovativi, ovvero il question mark sign e la transvaginal ultrasound uterine tenderness. Metodi: 78 pazienti candidate ad isterectomia per patologia uterina benigna sono state sottoposte ad ecografia transvaginale preoperatoria per la valutazione dei criteri di diagnosi ecografica di adenomiosi riportati dal consensus statement MUSA. L’adenomiosi è stata diagnosticata in presenza di due o più fra i seguenti parametri: asimmetria delle pareti uterine, strie iperecogene, lacune anecogene, isole iperecogene, irregolarità sub-endometriali, interruzione o irregolarità della zona giunzionale, vascolarizzazione trans-lesionale. In aggiunta, sono stati valutati due marker ecografici innovativi: il question mark sign e la transvaginal ultrasound uterine tenderness, ovvero la sezione longitudinale dell’utero con morfologia a punto interrogativo e la valutazione ecografica dinamica della dolorabilità dell’utero alla pressione mirata della sonda vaginale. Le caratteristiche ecografiche sono state confrontate con l’esame istologico. Risultati: La prevalenza di adenomiosi nel campione è risultata pari a 33.3%. Sensibilità, specificità, valore predittivo positivo e negativo e accuratezza dell’ecografia transvaginale nella diagnosi di adenomiosi sono risultate rispettivamente 83%, 96%, 91%, 89% e 92%. Asimmetria, strie iperecogene ed interruzione della zona giunzionale sono risultati i marker più accurati per la diagnosi di adenomiosi. La caratteristica più frequentemente riscontrata (100%) è stata l’eterogeneità miometriale, ma ha mostrato scarsa specificità (7%). Il question mark sign e la transvaginal ultrasound uterine tenderness hanno presentato sensibilità, specificità, valore predittivo positivo e negativo e accuratezza pari rispettivamente a 41%, 96%, 83%, 77%, e 69% e 69%, 65%, 66%, 81%, e 67%. Conclusioni: I marker ecografici proposti dal consensus statement MUSA si confermano accurati nella diagnosi di adenomiosi. Il question mark sign e e la transvaginal ultrasound uterine tenderness hanno dimostrato buone capacità diagnostiche e potrebbero rivelarsi un utile complemento nella diagnosi ecografica di adenomiosi.
Leonardi, Mathew. "The utility of advanced pelvic ultrasound techniques in the diagnosis and management of patients with endometriosis". Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/28014.
Pełny tekst źródłaCarter, David E. "Diagnostic and classification accuracy for mildly mentally handicapped children". Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/31112.
Pełny tekst źródłaEducation, Faculty of
Educational and Counselling Psychology, and Special Education (ECPS), Department of
Graduate
Rachaneni, Suneetha. "Accuracy of bladder ultrasound in the diagnosis of detrusor overactivity (BUS study)". Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6723/.
Pełny tekst źródłaRawashdeh, Mohammad. "Radiologist and image characteristics that affect the accuracy of breast cancer diagnosis". Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/12790.
Pełny tekst źródłaBrazzelli, 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.
Pełny tekst źródłaAlonzo, Todd Allen. "Assessing accuracy of a continuous medical diagnostic or screening test in the presence of verification bias /". Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/9600.
Pełny tekst źródłaLloyd, Aaron, Vinay Pasupuleti, Priyaleela Thota, Chaitanya Pant, David D. K. Rolston, Adrian V. Hernández, Vicente A. Benítes-Zapata, Thomas G. Fraser, Curtis J. Donskey i Abhishek Deshpande. "Accuracy of loop-mediated isothermal amplification for the diagnosis of Clostridium difficile infection: a systematic review". Elsevier B.V, 2015. http://hdl.handle.net/10757/345286.
Pełny tekst źródłaRevisión por pares
Staal, Rozemarijn Nathalie. "Diagnostic Accuracy in Dual Diagnosis: The Development of the Screen for Symptoms of Psychopathology in Individuals with Intellectual Disability (SSP-ID)". Wright State University Professional Psychology Program / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=wsupsych1347493083.
Pełny tekst źródłaLee, Lisa Meredith. "Factors affecting accuracy ratings of an automated adolescent MMPI report /". Norfolk, Va. : Lee, 1989.
Znajdź pełny tekst źródłaPatel, Alpesh. "Sensitivity and Accuracy of Cone Beam Computed Tomography in Diagnosing Osseous Defects at the Mandibular Condyle". The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1363606389.
Pełny tekst źródłaSibanda, Lidion. "Diagnostic radiography requests in Zimbabwe’s public hospital complex: completeness, accuracy and justtification". Thesis, Cape Peninsula University of Technology, 2012. http://hdl.handle.net/20.500.11838/1552.
Pełny tekst źródłaComplete, accurate and justified radiological examination requests are prerequisite to radiological exposures. However, global research shows evidence of high numbers of incomplete and inaccurate requests as well as that up to 77% radiological exposures are unjustified. Plain lumbar spine and plain skull radiology examinations are reported as being procedures that generate high dose and a low diagnostic yield. This study was designed to objectively measure the completeness, accuracy and justification of these two examinations in an effort to make inferences that will contribute to an improved radiology service. This research could therefore have positive effects on optimisation of radiation protection in Zimbabwe. Methodology A non participatory prospective descriptive analytical document review of quota sampled radiological request forms for 200 plain skull and 200 plain lumbar spine examinations was employed. Data was captured using structured data collection instruments designed and tested by the researcher for this study. The instrument was designed using the IAEA-HHS4 (2010) minimum prescribed request data as a framework and adding additional form fields found to be relevant through a review of all identified radiological request template forms in use at the research site. Data analysis involved central tendency measures and inferential statistics. Results: The central tendency demonstrated for the two examinations was that generally referrers for plain lumbar spine and for plain skull radiology would respectively provide 38.9 +/- 0.6% and 40.2+/-0.5% overall examination request information. This information was significantly below expectation. There was however no significant difference between the samples’ means for the two examinations. The tendency demonstrated in patient information for lumbar spine and skull requests was that generally referrers would respectively provide 48.4 +/- 0.8% and 49.5+/- 0.8% patient information. These values were inclusive of each other and they were significantly (p=0.00 Sig.) below expectation. There was however no significant difference between the two examinations’ data. The tendency demonstrated for examination information was that referrers for the research site would generally provide 29.8+/-0.8% (lumbar) and 32.6+/-0.8% (Skull) examination information. These values were significantly (p=0.000 Sig.) below expectation and demonstrated a significant difference between the sample means for the two examinations. With respect to referrer information, the tendency demonstrated was that generally referrers for plain lumbar spine and for plain skull examinations would respectively provide 38+/- 1% and 38.5 +/- 0.8% referrer identification information. These were significantly below expectation (p= 0.000 Sig.) but there was no significant difference between the samples’ means with respect to referrer information. With respect to accuracy of request data, it was observed that 5% plain lumbar spine and 3% plain skull requests were specific in so far as information documented on request forms could unambiguously identify the area to be imaged. It was also observed that 22.5% (lumbar spine) and 12% (skull) examination requests were indicated and therefore justified. All requests forms were found to be legible. Conclusions: Generally, referrers to this research site tend to provide incomplete, inaccurate and unjustified radiological request data. The observed levels of completeness, accuracy and justification of requests were generally consistent between the two examinations relative to expectation. These levels had medico-legal implications and negative effects on optimisation of radiation protection to patients. Further research to establish causes of this variance in referral behaviour is recommended. The researcher also recommends further research to establish whether there is an association between requested examination and completeness, accuracy and justification of diagnostic radiology examination requests. Keywords: Radiation protection, radiological request, complete request, accurate request, justified request, plain skull imaging, plain lumbar spine imaging.
Kjellberg, Gustav, i Henrik Kälvegren. "A comparison of classification accuracy between MRI and PET datasets in computer aided diagnosis of Alzheimer's disease". Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-229704.
Pełny tekst źródłaAntalet människor drabbade av Alzheimers sjukdom (AD) förväntas öka kraftigt de kommande åren. Att kunna diagnostisera sjukdomen tidigt är nyckeln till att ge dem insjukna en chans att leva ett liv av högre kvalitet. Ett av de vanligaste sätten att upptäcka AD är att visuellt undersöka bilder från hjärnskanningar av patienter. Datorassisterad diagnostisering (CAD) kan hjälpa en läkare i sitt omdöme vid undersökning för sjukdomen i hjärnbilderna, vilket ökar omdömets pålitlighet. Framsteg har gjorts inom området genom åren. Den här studien undersöker bedömningssäkerheten av maskinlärningsmetoder i klassifiering av AD på bilder från två olika skanningsmetoder för hjärnan - Magnetisk resonanstomografi (MRI) och Positronemissionstomografi (PET). Både PET- och MRI-datamängderna innehöll 60 bilder. 30 av bilderna var AD-fall och 30 var normala fall i varje datamängd. Bilderna processerades till endimensionella signaler med Discrete wavelet transform (DWT). Klassifieringssäkerheten av Support vector machine (SVM), Random forest (RF) och Naive bayes (NB) framtogs och utvärderades därefter med 6-delad korsvalidering (CV). Studien visade att PET-bilder är att föredra vid diagnostisering av AD med maskininlärningsklassifierare framför MR-bilder. Den högsta bedömningssäkerheten för PET och MRI utifrån 6-delad CV var 100 % och 90 % respektive. Den lägsta säkerheten var 60 % för PET and 40 % för MRI.
Woznitza, Nick. "The diagnostic accuracy of reporting radiographer chest X-ray interpretations and their influence on clinicians' diagnostic decision-making : a comparison with consultant radiologists". Thesis, Canterbury Christ Church University, 2016. http://create.canterbury.ac.uk/15847/.
Pełny tekst źródłaAithal, Guruprasad Padur. "Hepatotoxicity : accuracy of diagnosis, long term outcome and role of genetic polymorphism in drug metabolism and adverse drug reactions". Thesis, University of Newcastle Upon Tyne, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327270.
Pełny tekst źródłaCleary, Liam. "HbA1c Test’s Accuracy as a Predictor for Diabetes with Complications Diagnosis: Further Analysis of the HbA1c Diabetes Mellitus Test". Thesis, Boston College, 2020. http://hdl.handle.net/2345/bc-ir:108925.
Pełny tekst źródłaHbA1c levels are the most frequently used test for diagnosis and prognosis of diabetes mellitus. Recent studies have shown the biases this test has in particular cohorts, that was not noted when it was originally accepted by the American Diabetes Association in 2008. This study examined how these biases affect HbA1c’s ability as a predictor for complications that arise due to diabetes in specific cohorts, those of ethnicity, age, weight, and other patient attributes, compared to other established diabetes prognosis tests. We discovered that both glucose and HbA1c share similar biases as predictors for particular cohorts (the high glucose, high BMI, Asian, African, and Hispanic descent cohorts), HbA1c works better as a predictor when it is combined with the results of a glucose test and more characteristics of the patient compared to a HbA1c test alone with fewer variables, and glucose and HbA1c are better predictors for different diseases, respectively, that may arise due to diabetes mellitus
Thesis (BA) — Boston College, 2020
Submitted to: Boston College. College of Arts and Sciences
Discipline: Departmental Honors
Discipline: Economics
Jagot, Khatija H. "The accuracy of 2D transvaginal ultrasound in the diagnosis of benign endometrial pathology: a comparison between ultrasonography and hysteroscopy". Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29795.
Pełny tekst źródłaAmini, Hashem. "Fetal Anomalies Surveillance and Diagnostic Accuracy of Ultrasound and Magnetic Resonance Imaging /". Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-121503.
Pełny tekst źródłaVan, Zyl Johet Engela. "Accuracy of risk prediction tools for acute coronary syndrome : a systematic review". Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97069.
Pełny tekst źródłaENGLISH ABSTRACT: Background: Coronary artery disease is a form of cardiovascular disease (CVD) which manifests itself in three ways: angina pectoris, acute coronary syndrome and cardiac death. Thirty-three people die daily of a myocardial infarction (cardiac death) and 7.5 million deaths annually are caused by CVD (51% from strokes and 45% from coronary artery disease) worldwide. Globally, the CVD death rate is a mere 4% compared to South Africa which has a 42% death rate. It is predicted that by the year 2030 there will be 25 million deaths annually from CVD, mainly in the form of strokes and heart disease. The WHO compared the death rates of high-income countries to those of low- and middle-income countries, like South Africa, and the results show that CVD deaths are declining in high-income countries but rapidly increasing in low- and middle-income countries. Although there are several risk prediction tools in use worldwide, to predict ischemic risk, South Africa does not use any of these tools. Current practice in South Africa to diagnose acute coronary syndrome is the use of a physical examination, ECG changes and positive serum cardiac maker levels. Internationally the same practice is used to diagnose acute coronary syndrome but risk assessment tools are used additionally to this practise because of limitations of the ECG and serum cardiac markers when it comes to NSTE-ACS. Objective: The aim of this study was to systematically appraise evidence on the accuracy of acute coronary syndrome risk prediction tools in adults. Methods: An extensive literature search of studies published in English was undertaken. Electronic databases searched were Cochrane Library, MEDLINE, Embase and CINAHL. Other sources were also searched, and cross-sectional studies, cohort studies and randomised controlled trials were reviewed. All articles were screened for methodological quality by two reviewers independently with the QUADAS-2 tool which is a standardised instrument. Data was extracted using an adapted Cochrane data extraction tool. Data was entered in Review Manager 5.2 software for analysis. Sensitivity and specificity was calculated for each risk score and an SROC curve was created. This curve was used to evaluate and compare the prediction accuracy of each test. Results: A total of five studies met the inclusion criteria of this review. Two HEART studies and three GRACE studies were included. In all, 9 092 patients participated in the selected studies. Estimates of sensitivity for the HEART risks score (two studies, 3268 participants) were 0,51 (95% CI 0,46 to 0,56) and 0,68 (95% CI 0,60 to 0,75); specificity for the HEART risks score was 0,90 (95% CI 0,88 to 0,91) and 0,92 (95% CI 0,90 to 0,94). Estimates of sensitivity for the GRACE risk score (three studies, 5824 participants) were 0,03 (95% CI0,01 to 0,05); 0,20 (95% CI 0,14 to 0,29) and 0,79 (95% CI 0,58 to 0,93). The specificity was 1,00 (95% CI 0,99 to 1,00); 0,97 (95% CI 0,95 to 0,98) and 0,78 (95% CI 0,73 to 0,82). On the SROC curve analysis, there was a trend for the GRACE risk score to perform better than the HEART risk score in predicting acute coronary syndrome in adults. Conclusion: Both risk scores showed that they had value in accurately predicting the presence of acute coronary syndrome in adults. The GRACE showed a positive trend towards better prediction ability than the HEART risk score.
AFRIKAANSE OPSOMMING: Agtergrond: Koronêre bloedvatsiekte is ‘n vorm van kardiovaskulêre siekte. Koronêre hartsiekte manifesteer in drie maniere: angina pectoris, akute koronêre sindroom en hartdood. Drie-en-dertig mense sterf daagliks aan ‘n miokardiale infarksie (hartdood). Daar is 7,5 miljoen sterftes jaarliks as gevolg van kardiovaskulêre siektes (51% deur beroertes en 45% as gevolg van koronêre hartsiektes) wêreldwyd. Globaal is die sterfte syfer as gevolg van koronêre vaskulêre siekte net 4% in vergelyking met Suid Afrika, wat ‘n 42% sterfte syfer het. Dit word voorspel dat teen die jaar 2030 daar 25 miljoen sterfgevalle jaarliks sal wees, meestal toegeskryf aan kardiovaskulêre siektes. Die hoof oorsaak van sterfgevalle sal toegeskryf word aan beroertes en hart siektes. Die WHO het die sterf gevalle van hoeinkoms lande vergelyk met die van lae- en middel-inkoms lande, soos Suid Afrika, en die resultate het bewys dat sterf gevalle as gevolg van kardiovaskulêre siekte is besig om te daal in hoe-inkoms lande maar dit is besig om skerp te styg in lae- en middel-inkoms lande. Daar is verskeie risiko-voorspelling instrumente wat wêreldwyd gebruik word om isgemiese risiko te voorspel, maar Suid Afrika gebruik geen van die risiko-voorspelling instrumente nie. Huidiglik word akute koronêre sindroom gediagnoseer met die gebruik van n fisiese ondersoek, EKG verandering en positiewe serum kardiale merkers. Internationaal word die selfde gebruik maar risiko-voorspelling instrumente word aditioneel by gebruik omdat daar limitasies is met EKG en serum kardiale merkers as dit by NSTE-ACS kom. Doelwit: Die doel van hierdie sisematiese literatuuroorsig was om stelselmatig die bewyse te evalueer oor die akkuraatheid van akute koronêre sindroom risiko-voorspelling instrumente vir volwassenes. Metodes: 'n Uitgebreide literatuursoektog van studies wat in Engels gepubliseer is was onderneem. Cochrane biblioteek, MEDLINE, Embase en CINAHL databases was deursoek. Ander bronne is ook deursoek. Die tiepe studies ingesluit was deurnsee-studies, kohortstudies en verewekansigde gekontroleerde studies. Alle artikels is onafhanklik vir die metodologiese kwaliteit gekeur deur twee beoordeelaars met die gebruik van die QUADAS-2 instrument, ‘n gestandaardiseerde instrument. ‘n Aangepaste Cochrane data instrument is gebruik om data te onttrek. Data is opgeneem in Review Manager 5.2 sagteware vir ontleding. Sensitiwiteit en spesifisiteit is bereken vir elke risiko instrument en ‘n SROC kurwe is geskep. Die SROC kurwe is gebruik om die akkuraatheid van voorspelling van elke instrument te evalueer en te toets. Resultate: Twee HEART studies en drie GRACE studies is ingesluit. In total was daar 9 092 patiente wat deelgeneeem het in die gekose studies. Skattings van sensitiwiteit vir die HEART risiko instrument (twee studies, 3268 deelnemers) was 0,51 (95% CI 0,47 to 0,56) en 0,68 (95% CI 0,60 to 0,75) spesifisiteit vir die HEART risiko instrument was 0,89 (95% CI 0,88 to 0,91) en 0,92 (95% CI 0,90 to 0,94). Skattings van sensitiwiteit vir die GRACE risiko instrument (drie studies, 5824 deelnemers) was 0,28 (95% CI 0,13 to 0,53); 0,20 (95% CI 0,14 to 0,29) en 0,79 (95% CI 0,58 to 0,93). Die spesifisiteit vir die GRACE risiko instrument was 0,97 (95% CI 0,95 to 0,99); 0,97 (95% CI 0,95 to 0,98) en 0,78 (95% CI 0,73 to 0,82). Met die SROC kurwe ontleding was daar ‘n tendens vir die GRACE risiko instrument om beter te vaar as die HEART risiko instrument in die voorspelling van akute koronêre sindroom in volwassenes. Gevolgtrekking: Altwee risiko instrumente toon aan dat albei instrumente van waarde is. Albei het die vermoë om die teenwoordigheid van akute koronêre sindroom in volwassenes te voorspel. Die GRACE toon ‘n positiewe tendens teenoor beter voorspelling vermoë as die HEART risiko instrument.
Matos, Fabiana Gonçalves de Oliveira Azevedo. "Fatores preditores da acurácia dos diagnósticos de enfermagem". Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/7/7139/tde-13012011-152651/.
Pełny tekst źródłaThe accuracy of nursing diagnoses is important in order to select appropriate interventions, however little is known about the factors that influence it. Objectives: To identify the predictors of accuracy of nursing diagnoses; describe the degree of accuracy of nursing diagnoses documented in clinical practice and to test the intra and interrater reliability of the Accuracy Scale for Nursing Diagnosis (NDAS) Version 2. Method: A documental study carried out in a public teaching hospital in São Paulo, Brazil. The accuracy of the nursing diagnoses documented during admission assessment of the patients was estimated by applying the NDAS Version 2, which has four items to judge the presence, relevance, specificity and consistency of the existing cues for a documented diagnosis. The responses to the items were scored and generated a final score ranging from 0 to 13.5 (0/1/2/4.5/5.5/9/10/12.5 or 13.5). The study sample was randomly composed of the admission records of 749 adult patients hospitalized in general medicine or surgical wards between July 2005 and June 2008. Each of the nurses who documented the admissions provided demographic and professional information. Also computed were the data of characteristics of patients who had their records reviewed. Association tests were performed between the degree of accuracy of diagnoses and variables of the diagnoses, variables of the patients and admission records and the variables of the nurses. The variables that obtained p values 0.20 in the association tests with the degree of accuracy were included in multiple regression models. A sub-sample of 156 admission records was randomly selected to estimate inter and intra-raters reliability of the scale. Results: Of the 749 admission records that were evaluated, 3.417 diagnoses were documented by 21 nurses. The majority of the nursing diagnoses were evaluated as highly accurate (70.4%) and average overall accuracy was 9.8 (DP = 5.6) and ranged from 0 to 13.5. Multiple linear regression analysis allows the adjustment of three models (variables of the diagnoses, variables of the patients and admission records and variables of the nurses). The model with variables of the diagnoses showed that diagnoses of low frequency (p = 0.000), diagnoses of the functional domain (p = 0.000) and actual diagnoses (p = 0.000) were predictors of a higher degrees of accuracy, explaining 28% of the variance; the model with variables of patients and admission records showed that chronic diseases (p = 0.000), admissions to the general medical ward (p = 0.000) and a satisfactory quality of the patient records (p=0.005) were predictors of higher accuracy, explaining 14% of the variance; and the model with variables of the nurses showed that reporting presence of theoretical and practical content of nursing diagnosis in the baccalaureate program (p = 0.011) was predictor of higher degrees of accuracy, explaining 26% of the variance. The ICC coefficient of intra and interraters was 0.96 and 0.71 respectfully, therefore demonstrating good reliability of the NDAS Version 2. Conclusion: This study provided empirical data to advance knowledge regarding predictors of the accuracy of nursing diagnoses.
Minne, C. "The efficacy of intravenous iodinated contrast media in the diagnostic accuracy of cranial computed tomography (CT) in patients with a possible missed diagnosis at Dr George Mukhari Hospital, Pretoria". Thesis, University of Limpopo (Medunsa Campus), 2011. http://hdl.handle.net/10386/407.
Pełny tekst źródłaObjective: The objective was to determine the incidence of missed pathology on normal non contrast enhanced cranial computed tomography (NECT).Method: Records of cranial computed tomography scans done over a 12 month period at the Dr George Mukhari Hospital were evaluated by three readers. The NECT and contrast enhanced cranial computed tomography (CECT) were read at separate occasions and readers did not have access to a history, each other’s interpretation or to their own interpretation of the NECT when the CECT was evaluated. The data was evaluated and analysed after the 3 readers had seen the cases individually. Interpretation discrepancies were resolved during a meeting between all 3 readers and consensus was reached. Cases with missed pathology on the NECT were evaluated retrospectively at a joint meeting between the 3 readers to determine whether the pathology was visible on the NECT and thus to determine the combined reader error rate. Results: In this study 3.28 % of cases had pathology missed by 3 readers on the NECT. Retrospective viewing reduced this to 1.42% indicating a reader error of 1.85%. This incidence of missed pathology correlates with the most recent studies done. Having a thorough medical history of the patient and selecting those with clinical findings indicating the need for a CECT will reduce the incidence of missed pathology.Conclusion: Patients with a normal NECT and no fever, meningism, confusion, focal/lateralizing signs, a history of tuberculosis or tumours, or risk factors for dural venous sinus thrombosis have a very small chance of missed pathology on NECT. The risk of contrast induced adverse events outweighs the risk of missing pathology on a normal NECT provided there is no clinical indication necessitating a CECT. Omitting unnecessary CECT will in turn reduce the risk of intravenous iodinated contrast and the radiation exposure to the patient. These two factors will ultimately reduce the running cost of the CT department and increase the throughput of patients. Alternatively omitting the NECT will reduce the radiation exposure to the patient.Reporting errors can be reduced by assessing and managing risk factors in each department i.e. viewing conditions and workload.
Ma, Rui. "Recommendations Regarding Q-Matrix Design and Missing Data Treatment in the Main Effect Log-Linear Cognitive Diagnosis Model". BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/9043.
Pełny tekst źródłaPayer, Nadine. "Suggested markers for sepsis in critically ill pediatric patients : accuracy of sCD14, G-CSF, IL-6, and IL-8 for advanced diagnosis /". [S.l.] : [s.n.], 2009. http://opac.nebis.ch/cgi-bin/showAbstract.pl?sys=000297949.
Pełny tekst źródłaUmemura, Atsushi. "Diagnostic Accuracy of Apparent Diffusion Coefficient and 123I-Metaiodobenzylguanidine for Differentiation of Multiple System Atrophy and Parkinson's Disease". Kyoto University, 2015. http://hdl.handle.net/2433/200316.
Pełny tekst źródłaStevenson, Amanda. "Mild cognitive impairment and the uncertainties of diagnosis : reviewing the accuracy of the Montreal Cognitive Assessment and exploring the process of psychosocial adjustment". Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/16223.
Pełny tekst źródłaLi, Zhongliang. "Data-driven fault diagnosis for PEMFC systems". Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4335/document.
Pełny tekst źródłaAiming at improving the reliability and durability of Polymer Electrolyte Membrane Fuel Cell (PEMFC) systems and promote the commercialization of fuel cell technologies, this thesis work is dedicated to the fault diagnosis study for PEMFC systems. Data-driven fault diagnosis is the main focus in this thesis. As a main branch of data-driven fault diagnosis, the methods based on pattern classification techniques are firstly studied. Taking individual fuel cell voltages as original diagnosis variables, several representative methodologies are investigated and compared from the perspective of online implementation.Specific to the defects of conventional classification based diagnosis methods, a novel diagnosis strategy is proposed. A new classifier named Sphere-Shaped Multi-class Support Vector Machine (SSM-SVM) and modified diagnostic rules are utilized to realize the novel fault recognition. While an incremental learning method is extended to achieve the online adaptation.Apart from the classification based diagnosis approach, a so-called partial model-based data-driven approach is introduced to handle PEMFC diagnosis in dynamic processes. With the aid of a subspace identification method (SIM), the model-based residual generation is designed directly from the normal and dynamic operating data. Then, fault detection and isolation are further realized by evaluating the generated residuals.The proposed diagnosis strategies have been verified using the experimental data which cover a set of representative faults and different PEMFC stacks. The preliminary online implementation results with an embedded system are also supplied
Shinkins, Bethany. "The evaluation and expansion of methodologies relating to the reporting and analyses of intermediate test results : improving the clinical utility of diagnostic research". Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:2df7fc16-51f5-4978-80bd-b69efdf9c8a2.
Pełny tekst źródłaALBERO, FELIPE G. "Diagnostico de lesoes da tireoide pela espectroscopia de absorcao no infravermelho por tranformada de Fourier-FTIR". reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9500.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Jacquemin, Maxime. "Arithmétiques relationnelles pour l'analyse par interprétation abstraite de propriétés de précision numérique". Electronic Thesis or Diss., université Paris-Saclay, 2021. http://www.theses.fr/2021UPASG050.
Pełny tekst źródłaFloating point arithmetic is the most used approach to perform mathematical computations using real numbers with a computer. However, this approach has a default : each operation can introduce an error, that is, a difference with the result we would have obtained using real numbers. Even if those errors are very small, they can accumulate et provoke serious bugs, particularly in critical domains like aeronautics or nuclear energy production for example. Thus, we have to be able to guarantee that the errors introduced by the use of floating point arithmetic do not cause problems, in other words, that they are small enough for the program to behave as expected. To answer this need, we propose an abstract interpretation based static analysis, along with a new abstract domain, that computes an overapproximation of the errors introduced by floating point arithmetic. This analysis is based on the interaction, performed through a reduced product, between two conceptions of the concept of error : absolute error, intuitive and helpful to understand the analyzed program, and relative error, closer of floating point arithmetic functioning. Our analysis relies on the combination of affine and intervals arithmetics, and thus have relational reasoning capacities. However, this combination has difficulties dealing with non linear operations, whose precision has a huge impact on relative errors evaluations. Thus, we propose two approaches to tackle this problem. The first one consists of several improvements of this combination that help evaluating multiplications and divisions more precisely without impacting performances significantly. The second one consists of the definition of a new relational arithmetic, specifically designed to represent relative errors. Besides, we have implemented a prototype of our analysis within the Frama-C/Eva tool. The first experimental results enlighten the advantages of our analysis against state of the art tools
Russ, Andrew. "Diagnosing eyewitness accuracy". Thesis, University of Kent, 2015. https://kar.kent.ac.uk/53992/.
Pełny tekst źródłaHughes, Clifford. "Studies on improving the predictive markers for the diagnosis of acute pancreatitis after Endoscopic Retrograde Cholangiopancreatography (ERCP)". Thesis, Queensland University of Technology, 1999. https://eprints.qut.edu.au/37065/1/37065_Hughes_1999.pdf.
Pełny tekst źródłaVan, Dyk Zandri. "Diagnostic accuracy of CE Chirp". Diss., University of Pretoria, 2019. http://hdl.handle.net/2263/72463.
Pełny tekst źródłaDissertation (MA Audiology) University of Pretoria, 2019.
Speech-Language Pathology and Audiology
MA (Audiology)
Unrestricted
Chan, Ealine Y. L. "Diagnostic accuracy of tests for asthma". Thesis, Queen Mary, University of London, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511810.
Pełny tekst źródłaZheng, Yingye. "Semiparametric methods for longitudinal diagnostic accuracy /". Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/9580.
Pełny tekst źródłaBusse, Harald, Tim Riedel, Nikita Garnov, Gregor Thörmer, Thomas Kahn i Michael Moche. "Targeting accuracy, procedure times and user experience of 240 experimental MRI biopsies guided by a clinical add-on navigation system". Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-176108.
Pełny tekst źródłaCouto, Filho Carlos Eduardo Gomes do 1962. "Accuracy in the diagnosis of the anterior loop of the mental nerve between panoramic radiography and cone beam computed tomography = is clinically relevant? = Acurácia no diagnóstico da alça anterior do nervo mentual através de radiografias panorâmicas digitais e tomografia computadorizada de feixe cônico". [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289415.
Pełny tekst źródłaTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: A reabilitação bucal com implantes dentários revolucionou a odontologia. No entanto, conhecimentos anatômicos como também técnicos são essenciais para a realização de um adequado tratamento. Desta forma, a reabilitação através da instalação de implantes dentários na região interforaminal (forames mentuais) tornou-se comum em reabilitações totais mandibulares. Em consequência disto, um grande número de transtornos sensoriais tem sido descritos e relacionados a alças anteriores do nervo mentual. A divisão do canal mandibular em nervo mentual, responsável pela inervação de tecidos moles (mucosa vestibular, fundo de sulco vestibular, mucosa labial do lábio inferior, pele do mento e lábio inferior), e feixe incisivo, que pode localizar-se no canal incisivo e é responsável pela inervação da região ântero-inferior (dentes e tecidos periodontais) deve ser considerada no planejamento de intervenções nesta região. A injúria a alça do nervo mentual do canal mandibular e ao feixe incisivo poderá trazer transtornos como perda de sensibilidade, edema, hematoma e falha na osseointegração. Apesar de ser considerada uma área segura para cirurgias ela é muito negligenciada no planejamento de tais procedimentos. A associação do conhecimento anatômico, tanto clínico quanto de imagens, torna o procedimento mais previsível devido às variações anatômicas, fazendo-se necessários exames de imagens, essenciais no controle de acidentes relacionados aos procedimentos de implantes intraforaminais. Como um dos exames de imagem mais utilizado em implantes dentais, a radiografia panorâmica apresenta precisão diagnóstica questionável. Portanto, verificamos a precisão da radiografia panorâmica quando comparada com a tomografia computadorizada cone-beam no diagnóstico da alça anterior do nervo mentual. Palavras chave: radiografia.panorâmica, tomografia computadorizada de feixe cônico, alça anterior do nervo mentual.
Abstract: Oral rehabilitation with dental implants has revolutionized dentistry. However, both anatomical and technical knowledge are essential to provide an appropriate treatment. Thus, the rehabilitation by installing dental implants at interforaminal region (mental foramina) has become common in total mandibular rehabilitation. Consequently, a large number of sensory disorders has been described and related to the anterior loop of mental nerve. The division of the mandibular canal into mental nerve, responsible for innervation of soft tissues (buccal mucosa, bottom of buccal sulcus, labial mucosa of the lower lip, skin of the chin and lower lip), and incisive branch, which may be located in the incisive canal and is responsible for the innervation of the lower anterior region (teeth and periodontal tissues) should be considered during the planning of interventions in this region. Injury to the loop of the mental nerve of the mandibular canal and to the incisive branch will likely bring disorders such as loss of sensitivity, swelling, hematoma and failure of osseointegration. Although considered a safe area for surgery, it is very neglected in the planning of such procedures. The association of anatomical knowledge, both clinical and of images, makes the procedure more predictable due to anatomical variations, making the imaging examinations necessary, which are essential in the control of accidents related to intraforaminal implant procedures. As one of the most widely used imaging examinations in dental implants, panoramic radiograph presents questionable diagnostic accuracy. Therefore, we verified the accuracy of panoramic radiograph in comparison with cone-beam computed tomography in the diagnosis of the anterior loop of the mental nerve. Keywords: panoramic radiography, cone-beam computed tomography, anterior loop length, mental nerve.
Doutorado
Cirurgia e Traumatologia Buco-Maxilo-Faciais
Doutor em Clínica Odontológica
Popeliuk, N. O. "Diagnostic accuracy with the pyloroduodenal pathology in children". Thesis, БДМУ, 2020. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/17710.
Pełny tekst źródłaTsuchido, Yasuhiro. "Real-time quantitative PCR analysis of endoscopic biopsies for diagnosing CMV gastrointestinal disease in non-HIV immunocompromised patients: a diagnostic accuracy study". Kyoto University, 2019. http://hdl.handle.net/2433/242399.
Pełny tekst źródłaGross, Susan I. "The Impact of Education and Experience on Diagnostic Accuracy". Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1433424760.
Pełny tekst źródłaRosa, Maria Inês da. "O papilomavirus humano e lesões do colo uterino". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/12119.
Pełny tekst źródłaWe analysed a cohort of women in Southern Brazil with the aim to identify epidemiological correlates for persistence and clearance of cervical HPV infection. A quantitative systematic review was performed to estimate the accuracy of telomerase assay in cervical lesions. Methods: A cohort study was started on February 2003. Cervical smears were collected to perform Pap cytology and HPV DNA detection at baseline and during the follow up. The outcome was constructed in four categories (1) persistence of HPV DNA; (2) conversion; (3) clearance of HPV. Pearson’s χ2 test, multinomial logistic regression and univariate analysis using the log-rank test were performed. Meta-analysis studies that evaluated the telomerase test (telomerase repeated amplification protocol) for the diagnosis of cervix lesions and compared it to paraffin-embedded sections as the diagnostic standard were included. Results: Incidence of HPV DNA: 12.3%. HPV16 was the most frequent type (18.6%) among 501 women in the study. Thirty-four women were persistently infected with HPV, which was associated with age below 21 years at first intercourse (OR 3.14, 95% CI, 1.43-6.87) and ≥ 4 sexual partners during lifetime (OR 2.48, 95% CI, 1.14-5.41). In a median period of 19 months, 80.7% of women had clearance of HPV, which was associated with black race (OR 3.44, 95% CI, 1.55-7.65), co-infection with C. trachomatis at baseline (OR 3.26, 95% CI, 1.85-5.76) and history of previous Pap smear (OR 3.48, 95% CI, 1.51-8.00). In meta-analysis ten studies were analyzed, which included 1,069 women. The diagnostic odds ratio (DOR) for a positive telomerase test for Lo-SIL vs. normal or benign lesions was 3.2 (95% CI, 1.9-5.6). The DOR for a positive telomerase test for Hi-SIL vs. Lo-SIL, normal or benign lesions was 5.8 (95% CI, 3.1-10). For cervix cancer vs. Hi-SIL, the DOR for a positive telomerase test was 8.1 (95% CI, 3.2-20.3) and for cervix cancer vs. Lo-SIL, normal or benign lesions, it was 40.9 (95% CI, 18.2-91). Conclusions: Persistence of HPV infection wasassociated with early age at first intercourse and number of sexual partners during lifetime, suggesting that strategies for sexual orientation may modify the rates of HPV persistence. The association of HPV clearance with a history of previous Pap smear screening highlights the importance of improving cervical screening programs. Further studies on the association of gynaecological infections with HPV clearance are needed. In meta-analysis our data support the current hypothesis that telomerase may activate an early event in cervical carcinogenesis, that could be associated with the initiation and progression of cervical lesions.
Srinivasan, Soorya. "Reliability and Accuracy of Assessing TAD - Tooth Root Contact using CBCT". The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1553782462280014.
Pełny tekst źródłaCoyle, Shannon Jean. "Improving Accurate Diagnosis and Treatment for Acute Viral Conjunctivitis". UNF Digital Commons, 2014. https://digitalcommons.unf.edu/etd/526.
Pełny tekst źródłaPowers, James Murray. "Population-averaged models for diagnostic accuracy studies and meta-analysis". Thesis, The University of North Carolina at Chapel Hill, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3562789.
Pełny tekst źródłaModern medical decision making often involves one or more diagnostic tools (such as laboratory tests and/or radiographic images) that must be evaluated for their discriminatory ability to detect presence (or absence) of current health state. The first paper of this dissertation extends regression model diagnostics to the Receiver Operating Characteristic (ROC) curve generalized linear model (ROC-GLM) in the setting of individual-level data from a single study through application of generalized estimating equations (GEE) within a correlated binary data framework (Alonzo and Pepe, 2002). Motivated by the need for model diagnostics for the ROC-GLM model (Krzanowski and Hand, 2009), GEE cluster-deletion diagnostics (Preisser and Qaqish, 1996) are applied in an example data set to identify cases that have undue influence on the model parameters describing the ROC curve. In addition, deletion diagnostics are applied in an earlier stage in the estimation of the ROC-GLM, when a linear model is chosen to represent the relationship between the test measurement and covariates in the control subjects. The second paper presents a new model for diagnostic test accuracy meta-analysis. The common analysis framework for the meta-analysis of diagnostic studies is the generalized linear mixed model, in particular, the bivariate logistic-normal random effects model. Considering that such cluster-specific models are most appropriately used if the model for a given cluster (i.e. study) is of interest, a population-average (PA) model may be appropriate in diagnostic test meta-analysis settings where mean estimates of sensitivity and specificity are desired. A PA model for correlated binomial outcomes is estimated with GEE in the meta-analysis of two data sets. It is compared to an indirect method of estimation of PA parameters based on transformations of bivariate random effects model parameters. The third paper presents an analysis guide for a new SAS macro, PAMETA (Population-averaged meta-analysis), for fitting population-averaged (PA) diagnostic accuracy models with GEE as described in the second paper. The impact of covariates, influential clusters and observations is investigated in the analysis of two example data sets.
Dinnes, Jacqueline. "The influence of spectrum (case-mix) on diagnostic test accuracy". Thesis, University of Southampton, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.509464.
Pełny tekst źródłaMartinez, Austin A. "A Comparison of the Diagnostic Accuracy of Three Diagnostic Tests for Anterior Cruciate Ligament Lesions". Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1491775474846951.
Pełny tekst źródłaElkhafifi, Faiza F. "Nonparametric Predictive Inference for ordinal data and accuracy of diagnostic tests". Thesis, Durham University, 2012. http://etheses.dur.ac.uk/3914/.
Pełny tekst źródłaSchwarz, Betty Anne. "Developing a standardized tool for interpretation of radiology diagnostic accuracy trials". Thesis, Middlesex University, 2016. http://eprints.mdx.ac.uk/21171/.
Pełny tekst źródłaErhardt, Gerber. "Accuracy of plain radiographs for diagnosing histologically proven malignant bone lesions". Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29291.
Pełny tekst źródłaKarlson, Gunilla, i Helena Tengvall. "The accuracy of apical palpation and percussion when diagnosing apical periodontitis". Thesis, Malmö högskola, Odontologiska fakulteten (OD), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-19930.
Pełny tekst źródłaThe aim of this study was to evaluate the accuracy of apical palpation and percussion when diagnosing symptomatic apical periodontitis and asymptomatic apical periodontitis in non-root filled teeth.Fifteen patients participated in the study; eight patients with symptomatic apical periodontitis and seven with asymptomatic apical periodontitis. The patients were recruited from three different clinics in the south of Sweden. Initially, the patients answered questions concerning recent intake of medication and graded their pain on a Visual Analogue Scale. The observer performed the two diagnostic tests on the test tooth, the control tooth and their adjacent teeth. As reference test, the pulp condition was examined by direct inspection at the access opening of the test tooth. For apical palpation, when diagnosing symptomatic apical periodontitis/asymptomatic apical periodontitis, the sensitivity was 0.50/0.14, the specificity was 1/1, the positive predictive value was 1/1 and the negative predictive value was 0.67/0.54. For percussion, when diagnosing symptomatic apical periodontitis /asymptomatic apical periodontitis, the sensitivity was 0.38/0.29, the specificity was 1/1, the positive predictive value was 1/1 and the negative predictive value was 0.62/0.58.No general conclusions can be made from this study due to the small population size. However, the results indicate that the accuracy of apical palpation and percussion when diagnosing symptomatic apical periodontitis and asymptomatic apical periodontitis in non-root filled teeth is low. The two diagnostic tests should not be used alone to identify teeth with symptomatic apical periodontitis and asymptomatic apical periodontitis.