Figure 9From: Cardiovascular magnetic resonance evaluation of aortic stenosis severity using single plane measurement of effective orifice areaVena contracta region during systole on a severe aortic stenosis (EOA = 0.88 cm2). Vena contracta region (in red) remained almost constant closer to the aortic valve. Vena contracta exact position was 13 mm from the aortic valve at peak systole. Vena contracta region was defined using JSLD method.Back to article page