Sökning: "Left ventricle"

Visar resultat 1 - 5 av 77 avhandlingar innehållade orden Left ventricle.

  1. 1. Patient-Specific Finite Element Modeling of the Blood Flow in the Left Ventricle of a Human Heart

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Jeannette Hiromi Spühler; KTH.; [2017]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Finite element method; Arbitrary Lagrangian-Eulerian method; Fluid-Structure interaction; Contact model; parallel algorithm; blood flow; left ventricle; aortic valves; patient-specific heart model;

    Sammanfattning : Heart disease is the leading cause of death in the world. Therefore, numerous studies are undertaken to identify indicators which can be applied to discover cardiac dysfunctions at an early age. LÄS MER

  2. 2. Left ventricular conductance volumetry technique applied to a pressure guide wire

    Detta är en avhandling från Stockholm : Fysik

    Författare :Emil Söderqvist; KTH.; [2002]
    Nyckelord :Pressure-volume; Conductance catheter; Left ventricle; Segment volumes;

    Sammanfattning : .... LÄS MER

  3. 3. The effect of pressure afterload due to aortic coarctation on left ventricular function in children

    Detta är en avhandling från Umeå : Umeå Universitet

    Författare :Haki Jashari; Umeå universitet.; [2016]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Coarctation of the aorta; congenital aortic stenosis; left ventricle; myocardial deformation imaging; speckle tracking echocardiography; longitudinal strain; aorto-septal angle; children; Cardiology; kardiologi;

    Sammanfattning : Background:Coarctation of the aorta (CoA) is a congenital heart disease which represents a narrowing of the proximal descending aorta, hence increasing pressure afterload to the left ventricle (LV). Conventional treatment of native CoA is surgical repair, however potential recurrence or other related complications e.g. LÄS MER

  4. 4. Left atrial function in health and disease

    Detta är en avhandling från Umeå : Umeå university

    Författare :Mark Henein; Umeå universitet.; [2012]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Left atrium; Doppler echocardiography; atrial interaction; atrial pressure;

    Sammanfattning : The Objectives of this thesis are:1) To study possible atrial interaction in patients with right and left ventricular outflow tract obstruction due to significant pulmonary (PS) and aortic valve stenosis (AS), respectively.2) To assess left atrial (LA) intrinsic myocardial function and its relationship to indirect measures of left ventricular (LV) filling pressures in patients with paroxysmal atrial fibrillation (PAF). LÄS MER

  5. 5. Insights into left atrial response to pressure and volume overload

    Detta är en avhandling från Umeå : University of Umeå

    Författare :Matteo Lisi; Umeå universitet.; [2016]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Keywords Mitral regurgitation; aortic stenosis; speckle tracking echocardiography; heart transplantation; left atrial strain; left ventricualr function; right ventricular function; myocardial fibrosis;

    Sammanfattning : The general purpose of this thesis is to establish the ability of Speckle Tracking Echocardiography (STE) in assessing left atrial (LA) response to pressure and volume overload respectively in aortic stenosis (AS) and mitral regurgitation (MR), and to evaluate its accuracy in predicting LA and right ventricular (RV) fibrosis in patients with end-stage heart failure (HF) undergoing heart transplantation (HTx).I demonstrated that assessment of left ventricular (LV) long axis systolic velocity and amplitude of excursion is more sensitive than simple determination of ejection fraction (EF) for revealing the beneficial impact of MR surgery on overall LV systolic performance. LÄS MER