Quantification of left to right atrial shunts with velocity-encoded cine nuclear magnetic resonance imaging
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چکیده
منابع مشابه
Active left atrial emptying: assessment by cine and velocity encoded magnetic resonance imaging
Introduction Growing attention has been recently paid to the assessment of active LA emptying in patients after ablation of atrial fibrillation. Measurements of active LA emptying are typically performed by echocardiography in clinical routine. However, little is known about the role of cardiac MRI for this purpose. The present study evaluated the relative merits of biplane long-axis cineand VE...
متن کاملNoninvasive quantification of left-to-right shunt in pediatric patients: phase-contrast cine magnetic resonance imaging compared with invasive oximetry.
BACKGROUND Blood flow can be quantified noninvasively by phase-contrast cine MRI (PC-MRI) in adults. Little is known about the feasibility of the method in children with congenital heart disease. METHODS AND RESULTS In 50 children (mean age 6.2 years, range 1.1 to 17.7 years) with an atrial- or ventricular-level shunt, blood flow rate in the great vessels was determined by PC-MRI, and the rat...
متن کاملLeft atrial appendage flow velocities: assessment by velocity encoded magnetic resonance imaging
Introduction The presence of reduced LAA flow velocities indicates patients who are prone to thrombus formation in the LAA and therefore being at high risk for subsequent cardioembolic stroke. LAA flow velocities are typically assessed by TEE in clinical routine. VENC-MRI is an established tool for the quantification of transvalvular flow, but the feasibility of LAA flow measurements by VENC-MR...
متن کاملCoarctation of the Aorta by Velocity Encoded Cine Magnetic Resonance Imaging
Background Knowledge about the volume of collateral flow provides insight into the severity of coarctation of the aorta and may be critical in planning the operative approach. There is currently no method for the quantification of collateral flow in coarctation of the aorta. In this study, we applied velocity encoded cine magnetic resonance imaging (VENC-MR) to establish the flow pattern and vo...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1992
ISSN: 0735-1097
DOI: 10.1016/0735-1097(92)90384-y