Sökning: "Coronary artery calcification"

Visar resultat 1 - 5 av 17 avhandlingar innehållade orden Coronary artery calcification.

1. 1. Investigation of the origin of the coronary artery calcification process and its relationship to the atherosclerotic cardiovascular disease

   Författare :George Koulaouzidis; Michael Henein; Katrine Åhlström Riklund; Jan Engvall; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Coronary artery calcification; ethnicity; South Asians; Caucasians; reproducibility; aortic valve calcification; mitral valve calcification; family history of coronary artery disease; natural history; coronary artery calcium score; meta-analysis;

   Sammanfattning : The objectives of this thesis are: a) To examine racial/ethnic differences in coronary artery calcification (CAC) and CAD, between symptomatic South Asians and Caucasians, matched for age, gender and conventional cardiovascular risk factors, b) To assess, using a meta-analysis model, the natural history of and stability of measurements of coronary artery calcium scoring (CACs) based on data collected from two large published trials: St Francis and EBEAT, c) To investigate the prevalence of coronary artery calcification in individuals with CT evidence for AVC, mitral valve calcification (MAC) or of both of them (AVC+MAC), d) To assess any potential association between premature CAD (.. LÄS MER

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

   Författare :Fisnik Jashari; Michael Henein; Per Wester; Christine Kremer; Umeå universitet; []
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER

4. 3. Computer-­Assisted  Coronary  CT  Angiography  Analysis : From  Software  Development  to  Clinical  Application

   Författare :Chunliang Wang; Örjan Smedby; Anders Persson; Hans Frimmel; Evert-jan Vonken; Linköpings universitet; []
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER

5. 4. Insights into the relationship between coronary calcification and atherosclerosis risk factors

   Författare :Rachel Nicoll; Michael Henein; Gunilla Olivecrona; Jan Engvall; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Coronary artery calcification; risk factors; atherosclerosis; stenosis; Cardiology; kardiologi;

   Sammanfattning : Introduction Coronary artery disease (CAD) is the most common cause of death in Europe and North America and early detection of atherosclerosis is a clinical priority. Diagnosis of CAD remains conventional angiography, although recent technology has introduced non-invasive imaging of coronary arteries using computed tomographic coronary angiography (CTCA), which enables the detection and quantification of coronary artery calcification (CAC). LÄS MER

7. 5. Molecular mechanisms of cardiovascular calcification

   Författare :Miguel Carracedo Ortiz; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Cardiovascular calcification is a pathophysiological process characterized by the deposition of calcium-phosphate crystals in the arteries and the leaflets of the heart valves. In the arteries calcification causes arterial stiffness, which may lead to poor cardiac perfusion, systolic hypertension and heart failure. LÄS MER