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. 2018 Apr 26;20:28. doi: 10.1186/s12968-018-0451-1

Fig. 2.

Fig. 2

Systolic backward flow in a BAV patient. Red streamlines indicate forward flow in the ascending aorta, while blue streamlines indicate systolic backward flow. SFRR: systolic flow reversal ratio, VSFF: total systolic forward flow, VSBF: total systolic backward flow