Improved myocardial infarct localization by combination of scintigraphy and ventricular wall motion evaluation

Localization of acute myocardial infarcts can be done directly by imaging /sup 99m/Tc pyrophosphate in the infarcted myocardium, or indirectly by analysis of wall motion abnormalities. Combining these modalities improves the sensitivity and specificity of the study. Forty-nine consecutive abnormal studies were analyzed in which both wall motion and static images were obtained with a single injection of pyrophosphate. At least 50% of the acute infarcts were better localized (or additional information obtained) by combining the modalities