Sökning: "Receiver operating characteristic curve"
Visar resultat 1 - 5 av 27 avhandlingar innehållade orden Receiver operating characteristic curve.
1. DIGITAL ANALYSIS OF CARDIAC ACOUSTIC SIGNALS IN CHILDREN
Sammanfattning : DIGITAL ANALYSIS OF CARDIAC ACOUSTIC SIGNALS IN CHILDREN Milad El-Segaier, MD Division of Paediatric Cardiology, Department of Paediatrics, Lund University Hospital, Lund, Sweden SUMMARY Despite tremendous development in cardiac imaging, use of the stethoscope and cardiac auscultation remains the primary diagnostic tool in evaluation of cardiac pathology. With the advent of miniaturized and powerful technology for data acquisition, display and digital signal processing, the possibilities for detecting cardiac pathology by signal analysis have increased. LÄS MER
2. Ultrasound prediction of large fetuses. Epidemiological and clinical investigations
Sammanfattning : The proportions of newborns with a birth weight (BW) >4,000 g and of macrosomic newborns (BW >4,500 g) have increased during the last two decades, parallel with an increasing maternal pre-pregnancy body mass index (BMI) and age at the time for pregnancy. Delivery of a large fetus, especially >4,500 g might cause perinatal complications for both the mother and her child. LÄS MER
3. Methods for analysis of heart function
Sammanfattning : There is a continuous demand for improvements in methods foranalysis of heart function. This thesis investigates both themeasurement of left ventricular (LV) volume for evaluating theheart function and the exercise electrocardiographic (ECG) testfor diagnosis of coronary artery disease (CAD). LÄS MER
4. Resampling Evaluation of Signal Detection and Classification : With Special Reference to Breast Cancer, Computer-Aided Detection and the Free-Response Approach
Sammanfattning : The first part of this thesis is concerned with trend modelling of breast cancer mortality rates. By using an age-period-cohort model, the relative contributions of period and cohort effects are evaluated once the unquestionable existence of the age effect is controlled for. LÄS MER
5. Audio spectrum analysis of umbilical artery Doppler ultrasound signals
Sammanfattning : The aim of this thesis was to develop an objective method for evaluation of umbilical artery circulation based on auditory perception of the Doppler sound signals. Study I. The operator listened to synthetically produced sound signals from continuous flow. LÄS MER