Sökning: "atrial contraction"

Visar resultat 11 - 15 av 15 avhandlingar innehållade orden atrial contraction.

  1. 11. Aspects on Cardiac Pumping

    Författare :Marcus Carlsson; Lund Klinisk fysiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cardiac Pumping; Ventricular Function; Fysiologi; Physiology;

    Sammanfattning : Cardiac pumping physiology is important for understanding the pathophysiology of patients with cardiac disease. MRI gives the opportunity to measure volumes and flow non-invasively with high accuracy and precision. This thesis examines some aspects on cardiac pumping physiology. LÄS MER

  3. 12. Physiological aspects on intracardiac blood flow

    Författare :Per Arvidsson; Lund Klinisk fysiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; magnetic resonance imaging; 4D flow; physiology; cardiac development; kinetic energy; hemodynamic force; vortex ring formation;

    Sammanfattning : Magnetic resonance imaging enables detailed in vivo study of complex flow through 3D, time-resolved phase contrast imaging (4D flow). 4D flow may reveal previously unknown aspects of the physiology of intracardiac blood flow, and possibly elucidate pathophysiological processes that have yet to manifest themselves outside the heart. LÄS MER

  4. 13. Usefulness of coronary angiography for assessing left ventricular function

    Författare :Anders Kähäri; Bertil Svane; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : This thesis focus on the physiological information, on left ventricular (LV) motion in the long axis, evaluated in routine coronaty angiography sequences and based on previous knowledge from echocardiographic studies. As coronary angiography has become a very frequent examination, a method for assessment of LV function from routine coronary angiograms would probably have a significant impact on clinical work. LÄS MER

  5. 14. Mitral Ring Motion in Assessment of Left Ventricular Function

    Författare :Birger Wandt; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : The motion of the mitral ring was studied with M-mode echocardiography using the apical four- and two-chamber views.With the purpose of obtaining adequate reference materials for mitral ring motion, 70 healthy subjects were studied. LÄS MER

  7. 15. Automated analysis of fetal cardiac function : a new approach based on tissue Doppler imaging

    Författare :Lotta Herling; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The heart is a central organ in fetal adaptation to various hemodynamic insults and it is possible that subtle changes caused by complications such as hypoxia and anemia could manifest themselves early as altered fetal cardiac function. Color tissue Doppler imaging (cTDI) is an ultrasound technique that evaluates myocardial motion by assessing myocardial velocities. LÄS MER