Myocardial Imaging Using Emission Computed Tomography

Abstract
Single-photon emission computed tomography (ECT) was evaluated during myocardial studies in dogs. Acute anterior and posterior infarcts were imaged following injection of 99mTc-pyrophosphate or 201TI. In most cases, tomographic delineation of infarct location and extent correlated with tissue sections. The 99mTc images were far superior to the 201TI images. ECT improves delineation of tracer within the myocardium.