Comparison of Post-Exercise and Post-Vasodilator Stress Myocardial Stunning as Assessed by Electrocardiogram-Gated Single-Photon Emission Computed Tomography

Abstract

Using 99mTc-sestamibi gated SPECT, myocardial stunning is frequently observed after exercise and correlates with the severity of myocardial ischemia, but this does not occur with ATP, which is regarded as a specific marker for severe CAD.