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. 2020 Oct 15;2(5):e200004. doi: 10.1148/ryct.2020200004

Figure 1:

Indirect quantification of regurgitant volume (RvolINDIRECT) by using short-axis balanced steady-state free precession (bSSFP) MRI in the left ventricle (LV) (yellow) and two-dimensional (2D) flow MRI in the ascending aorta (AAo) (red). Slice locations are indicated on a three-chamber bSSFP image (left). Semiautomated contouring of the aortic flow area (top right) and the LV endocardial borders at end diastole and end systole (bottom right) allows for quantification of the ascending aorta forward flow volume and LV stroke volume (LVSV) and calculation of RvolINDIRECT. LA = left atrium, LVEDV = LV end-diastolic volume, LVESV = LV end-systolic volume.

Indirect quantification of regurgitant volume (RvolINDIRECT) by using short-axis balanced steady-state free precession (bSSFP) MRI in the left ventricle (LV) (yellow) and two-dimensional (2D) flow MRI in the ascending aorta (AAo) (red). Slice locations are indicated on a three-chamber bSSFP image (left). Semiautomated contouring of the aortic flow area (top right) and the LV endocardial borders at end diastole and end systole (bottom right) allows for quantification of the ascending aorta forward flow volume and LV stroke volume (LVSV) and calculation of RvolINDIRECT. LA = left atrium, LVEDV = LV end-diastolic volume, LVESV = LV end-systolic volume.