Balloon Deflation Strategy during Primary Percutaneous Coronary Intervention in Acute ST-Segment Elevation Myocardial Infarction: A Randomized Controlled Clinical Trial and Numerical Simulation-Based Analysis

Figure 4

Comparisons of simulated flow velocities and vascular wall shear stress (WSS) under various balloon deflation velocities. (a) Simulated vascular WSS with the fluid and perfusion pressure along the balloon; (b) simulated vascular WSS in the balloon area under different velocity of balloon deflation; (c) simulated flow velocity in the balloon-vessel gap under different velocity of balloon deflation; (d) simulated flow velocity contour maps under different velocity of balloon deflation.

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