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Figure 4 Exercise Tl/Tc Protocol: Abnormal Myocardial Perfusion
Tl-201/rest Tc-99m sestamibi (MIBI) high-speed myocardial perfusion imaging shows extensive defects in anterior, septal, and apical walls as well as transient ischemic dilation on exercise MPI of a 56-year-old man with atypical chest pain. Invasive coronary angiography revealed occlusion of the mid-left anterior descending artery. Note the absence of significant extracardiac activity on the rest Tc-99m MIBI images despite initiation of imaging 2 min after rest injection. Abbreviations as in Figure 1.
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