Coronary Wave Intensity Analysis as an Invasive and Vessel-Specific Index of Myocardial Viability.

Fractional Flow Reserve, Coronary Flow Reserve, and Logistic Regression Analysis FFR was numerically lower in nonviable territories; however, the relationship did not reach statistical significance (0.81±0.17 versus 0.71±0.16, P =0.058).

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In 33 territories assessed with dobutamine where follow-up echocardiography data were available, there was a strong trend toward higher wave BCW energy in viable territories but no significant difference in other wave energies, whether expressed as absolute values during dobutamine administration or as changes in wave energy from resting conditions.

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