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THE INFLUENCES OF SWIRL FLOW ON FRACTIONAL FLOW RESERVE IN MILD/MODERATE/SEVERE STENOTIC CORONARY ARTERIAL MODELS

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Fig. 2 (a) Curved and twisted vascular geometry on angiography  (b) Corresponding geometry reconstructed from computed        tomography
Fig. 3 Schematic diagram of stenotic arterial geometries in the absence (a) and presence (b) of pre-stenotic helical swirling flow produced  through a low-amplitude helical geometry on side perspectives (c) Front view of helical geometry where     and  
Fig. 4 Schematic diagram of simplified pressure wave forms at the  inlet of the three-dimensional(3-D) coronary arterial  geometry
Fig. 5 Fractional flow reserve (FFR) distribution in stenotic model with (a) non-swirl flow and (b) swirl flow
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