Abstract
The introduction of different imaging modalities to study patients with myocardial infarction has opened up new perspectives in the assessment of the site and extent of myocardial infarction. Thallium myocardial imaging provides multiple two-dimensional representations of myocardial perfusion defects, whether related to ischemia or infarction [1]. The extent of these defects can thus be described both in their axial and transverse dimensions (the latter through visual or tomographic reconstruction), and scintigraphic measurements correlate closely with pathological findings [2]. The scintigraphic extent of perfusion defects also relates closely to the distribution of coronary artery narrowings, and the pattern of scintigraphic defects can be used to predict the distribution of the most severe coronary artery lesions [3].
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