Impact of disturbed diastolic vortex formation on viscous energy loss in the left ventricle: Quantitative 4D Flow MRI analysis of healthy controls and repaired atrioventricular septal defect patients
نویسندگان
چکیده
Background Vortex formation in the left ventricle (LV) is suggested to contribute to efficient blood pumping and minimization of energy loss. Patients after atrioventricular septal defect (AVSD) repair may present abnormalities in valve morphology and subsequently develop altered LV inflow patterns [1], in which normal vortex formation may be disturbed. This may lead to energy loss. We aimed to analyze the association between disturbed vortex ring formation during diastole and viscous energy loss during diastole in AVSD-corrected patients compared to healthy controls.
منابع مشابه
Elevated energy loss in diastolic left ventricular inflow corresponds to an increase in kinetic energy in patients with a repaired atrioventricular septal defect: Quantification from 4D Flow MRI
Background Patients after atrioventricular septal defect (AVSD) repair may present abnormalities in valve morphology and subsequently develop altered left ventricular (LV) inflow patterns [1]. This may lead to energy loss and affect the kinetic energy in the LV. We aimed to quantify diastolic viscous energy loss and kinetic energy in the LV and to evaluate their association in AVSDrepaired pati...
متن کاملDisturbed diastolic left ventricular inflow vortex ring formation in patients with corrected atrioventricular septal defect: quantitative three-dimensional vortex core analysis from 4DFlow MRI
Background Vortex formation in the left ventricle (LV) is suggested to contribute to efficient blood pumping and altered vortex formation is associated with diastolic dysfunction. Patients after atrioventricular septal defect (AVSD) correction present abnormalities in valve morphology and subsequently develop altered inflow patterns (Calkoen et al. JMRI 2014), which may disturb normal vortex fo...
متن کاملApical inflow is associated with increased energy loss during left ventricular diastole in patients with a repaired atrioventricular septal defect: a 4D flow MRI study
Background Patients after atrioventricular septal defect (AVSD) repair have aberrant atrioventricular valve morphology resulting in a disorganized left ventricular (LV) inflow [1] with an increased amount of inflow reaching the apical level of the LV and retaining there during the subsequent systole [1]. This may elevate energy loss in LV flow due to friction. We aimed to evaluate the associati...
متن کاملAssessment of viscous energy loss and the association with three‐dimensional vortex ring formation in left ventricular inflow: In vivo evaluation using four‐dimensional flow MRI
PURPOSE To evaluate viscous energy loss and the association with three-dimensional (3D) vortex ring formation in left ventricular (LV) blood flow during diastolic filling. THEORY AND METHODS Thirty healthy volunteers were compared with 32 patients with corrected atrioventricular septal defect as unnatural mitral valve morphology and inflow are common in these patients. 4DFlow MRI was acquired...
متن کاملVortex flow in the left atrium in healthy controls and patients with mitral valve regurgitation after atrioventricular septal defect correction: evaluation with 4D Flow MRI and particle tracing
Methods 12 healthy controls (age 9-53 years) and 8 patients (age 8-37 years) with a corrected atrioventricular septal defect and a mean mitral valve regurgitation of 25% (range 1937%) were included. The maximal left atrial volume (LAV) was calculated based on the biplane area-length method from a standardized 2and 4-chamber view. Whole-heart 4D Flow MRI was performed on a 3T MR scanner with fre...
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عنوان ژورنال:
دوره 17 شماره
صفحات -
تاریخ انتشار 2015