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Figure 3 Examples of coronary flow velocity recordings in the proximal left anterior descending coronary artery at baseline (left panels) and during hyperemia (right panels) in a case with mitral regurgitation before (upper panels; Pre-op) and after (lower panels; Post-op) mitral reconstructive surgery. Baseline flow velocity decreases and coronary flow reserve increases after mitral reconstructive surgery compared with those before surgery. APV = time-averaged peak velocity; FR = coronary flow reserve.
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