Sökning: "ventricular mass"

Visar resultat 21 - 25 av 64 avhandlingar innehållade orden ventricular mass.

1. 21. Automatic segmentation in CMR - Development and validation of algorithms for left ventricular function, myocardium at risk and myocardial infarction

   Författare :Jane Tufvesson; Lund Klinisk fysiologi; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automatic segmentation; cardiovascular magnetic resonance; validation; Expectation Maximization; freely available software; myocardial infarction;

   Sammanfattning : In this thesis four new algorithms are presented for automatic segmentation in cardiovascular magnetic resonance (CMR); automatic segmentation of the left ventricle, myocardial infarction, and myocardium at risk in two different image types. All four algorithms were implemented in freely available software for image analysis and were validated against reference delineations with a low bias and high regional agreement. LÄS MER

3. 22. Cardiac morphology and dynamics in Swedish elite orienteers : Evaluation of the right and left ventricle by two-dimensional and doppler echocardiography

   Författare :Egil Henriksen; Uppsala universitet; []
   Nyckelord :Medical sciences; Echocardiography; sudden unexpected death in young orienteers; right and left ventricular measurements; Doppler echocardiography in athletes; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; Clinical Physiology; klinisk fysiologi;

   Sammanfattning : Background. Between 1979 and 1992, 16 (15 males and 1 female) sudden unexpected cardiac deaths(SUCD) were reported in Swedish orienteers. Compared with previous reports in young athletes there was a 10- to 100-fold increase in the sudden death rate in young male elite orienteers during this period. The mean age was 25 years (range 18-32 years). LÄS MER

4. 23. Magnetic Resonance Imaging of Myocardial Deformation and Scarring in Coronary Artery Disease

   Författare :Johan Kihlberg; Jan Engvall; Tino Ebbers; Anders Persson; Åse Johnsson; Linköpings universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

   Sammanfattning : Although improved treatments have reduced the rates of acute complications from myocardial infarction, sequelae such as heart failure and sudden death threaten the future wellbeing of those patients. Secondary prevention after myocardial infarction is related to cardiovascular risk factors and the effect of the infarct on left ventricular function. LÄS MER

5. 24. Cardiovascular structure and function in obesity. The impact of body composition, sleep apnea and sustained weight loss

   Författare :Dimitris Kardassis; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Obesity; weight loss; cardiac function; cardiac structure; inflammation; intima-media thickness; obstructive sleep apnoea;

   Sammanfattning : Background: Obesity is associated with disturbances in cardiovascular structure and function varying along with the degree of fatness, but the mechanisms underlying this co-variation are unclear. Short-term weight loss appears to have favourable effects on the cardiovascular system, but whether such improvements are maintained in the long run is unknown. LÄS MER

7. 25. Doppler evaluation of coronary blood flow and coronary flow reserve - Clinical and experimental studies

   Författare :Gylfi Oskarsson; Malmö Institutionen för kliniska vetenskaper; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pediatrics; Pediatri; Cardiovascular system; Kardiovaskulära systemet; fetal asphyxia; transposition of the great arteries; dilated cardiomyopathy; aortic stenosis; child; neonate; adenosine; coronary flow reserve; Doppler; coronary flow;

   Sammanfattning : Heart diseases in children cause different combinations of myocardial hypertrophy, increased intra-ventricular pressures, volume overload and decreased oxygen saturation. This may affect basal coronary flow and the ability of the heart to maximally increase coronary flow. LÄS MER