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Showing result 1 - 5 of 70 swedish dissertations matching the above criteria.

2. 1. Computer Assisted Coronary CT Angiography Analysis : Disease-centered Software Development

   Author : Chunliang Wang; Örjan Smedby; Anders Persson; Hans Frimmel; Markus Müller; Linköpings universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Coronary CTA; vessel segmenation; centerline tracking; visualization; Radiology; Radiologi; Image analysis; Bildanalys; Cardiology; Kardiologi;

   Abstract : The substantial advances of coronary CTA have resulted in a boost of use of this new technique in the last several years, which brings a big challenge to radiologists by the increasing number of exams and the large amount of data for each patient. The main goal of this study was to develop a computer tool to facilitate coronary CTA analysis by combining knowledge of medicine and image processing. READ MORE

4. 2. Endothelin and angiotensin II receptors in human coronary arteries and bypass grafts - Alterations in cardiovascular disease

   Author : Angelica Wackenfors; Lunds universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Kardiovaskulära systemet; Cardiovascular system; vasoconstriction; receptors; cardiovascular disease; human; coronary arteries;

   Abstract : Angiotensin II (Ang II) and endothelin-1 (ET-1) induce strong vasoconstriction via activation of receptors on vascular smooth muscle cells. In this thesis, the contractile Ang II and endothelin receptors were examined in endothelium-denuded human coronary arteries and in bypass grafts (the left internal mammary artery and the saphenous vein), with focus on receptor alterations in cardiovascular disease. READ MORE

5. 3. Carotid artery disease : plaque features and vulnerability

   Author : Fisnik Jashari; Michael Henein; Per Wester; Christine Kremer; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Carotid atherosclerosis; ultrasound; plaque features; echogenicity; calcification; surface plaque irregularities; subclinical atherosclerosis; cerebrovascular symptoms; Cardiology; kardiologi; cardiovascular disease; hjärt- och kärlforskning;

   Abstract : Background: Atherosclerosis is an important cause of stroke. Ultrasound offers the convenience of real-time and detailed assessment of carotid plaque features as well as arterial wall thickening and composition. READ MORE

6. 4. Coronary artery disease and prognosis in relation to cardiovascular risk factors, interventional techniques and systemic atherosclerosis

   Author : Fredrik Calais; Ole Fröbert; Jerzy Leppert; Bo Lagerqvist; Stefan K James; Douwe E. Atsma; Örebro universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Atherosclerosis; Myocardial infarction; Coronary artery disease; Extra-cardiac artery disease; Coronary stent; Thrombus aspiration; physical inactivity; Prognosis;

   Abstract : Aim: To evaluate the prognosis associated with location and severity of coronary and systemic atherosclerosis in patients with coronary artery disease (CAD) in relation to risk factors and interventional techniques.Methods: The thesis comprised six longitudinal studies based on three patient cohorts: The Swedish Coronary Angiography and Angioplasty Registry, the Västmanland Myocardial Infarction Survey, and the Thrombus Aspiration in ST-Elevation myocardial infarction in Scandinavia study, to evaluate clinical outcome relative to coronary lesion location and severity, extracoronary artery disease (ECAD), intervention techniques, and leisuretime physical inactivity (LTPI). READ MORE

7. 5. Computer-­Assisted  Coronary  CT  Angiography  Analysis : From  Software  Development  to  Clinical  Application

   Author : Chunliang Wang; Örjan Smedby; Anders Persson; Hans Frimmel; Evert-jan Vonken; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Vessel segmentation; coronary CTA; fuzzy connectedness; level set; coronary artery disease; Image analysis; Bildanalys; Radiological research; Radiologisk forskning;

   Abstract : Advances in coronary Computed Tomography Angiography (CTA) have resulted in a boost in the use of this new technique in recent years, creating a challenge for radiologists due to the increasing number of exams and the large amount of data for each patient. The main goal of this study was to develop a computer tool to facilitate coronary CTA analysis by combining knowledge of medicine and image processing, and to evaluate the performance in clinical settings. READ MORE