oa Cardiovascular Journal of Africa - Single photon emission computed tomography v. planar imaging in recent myocardial infarction using technetium-99m pyrophosphate



Radionuclide imaging of the myocardium with technetium-99m-labelled pyrophosphate (PYP) is a sensitive method for the diagnosis of a recent (2 - 7 days old) myocardial infarct. Although the sensitivity of planar imaging with PYP is more than 95% for recent transmural infarcts, it varies between 30% and 95% in non-transmural infarcts. It has, however, been shown that single photon emission computed tomography (SPECT) considerably enhances the sensitivity of this technique in patients with proven non-transmural infarcts. In the present study SPECT is evaluated in patients with a doubtful diagnosis of a recent myocardial infarct.


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