[Importance of pyrophosphate-99mTc scintigraphy in the diagnosis of acute myocardial infarct].

Scintigraphy with pyrophosphate 99mTc was performed in 230 patients with various forms of ischemic heart disease and in 15 persons with pain in the region of the heart caused by osteochondrosis of the cervical and thoracic spinal segments or vegetovascular dystonia (control group). It was found that labelled purophosphate accumulated in the myocardium in necrosis of the heart muscle or when coronary insufficiency takes a course in which necrosis of the myocardial cells is quite possible. Positive results of scintigraphy with pyrophosphate 99mTc are not a strict criterion of acute myocardial infarction because they are also encountered in a chronic course of ischemic heart disease and are evidence in this case that "a state of risk" has occurred during the disease.