Evaluation of right ventricular global and regional function during stress echocardiography using novel velocity vector imaging
نویسندگان
چکیده
منابع مشابه
Evaluation of right ventricular global and regional function during stress echocardiography using novel velocity vector imaging.
AIMS This study tested the feasibility of velocity vector imaging (VVI) analysis to quantitatively assess right ventricular (RV) function during stress echocardiography (SE). METHODS AND RESULTS We prospectively enrolled 73 patients (treadmill 38, dobutamine 35) undergoing SE using an Acuson C512 ultrasound system. The RV ejection fraction was measured for global RV function. The radial veloc...
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Obstructive sleep apnea syndrome (OSAS) is the most common type of sleep disorder which is associated with a series of cardiovascular disorders, including right ventricular (RV) dysfunction. However, it is difficult to assess the RV function systematically using a conventional echocardiography because RV has a complex geometrical shape. A case-control study was performed to assess the regional ...
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BACKGROUND The aims of this study were to evaluate subclinical regional right ventricular (RV) dysfunction in newly diagnosed obstructive sleep apnea (OSA) patients without systemic and pulmonary arterial (PA) hypertension, and to correlate OSA severity to RV dysfunction, using both velocity vector imaging (VVI)-derived strain imaging and tissue Doppler imaging (TDI). METHODS AND RESULTS The ...
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ژورنال
عنوان ژورنال: European Journal of Echocardiography
سال: 2009
ISSN: 1525-2167,1532-2114
DOI: 10.1093/ejechocard/jep190