[Negative and positive imaging of myocardial infarct].
In 41 patients myocardial scintigrams were performed using 2 mCi 201T1 and 15 mCi 99mTc-diphosphate. 9 healthy persons showed no myocardial imaging with 99mTc-diphosphate and normal 201T1 scintigrams. Transmural infarctions could be documented by both isotopes, excepted lateral and apical infarctions which could only be shown by means of 99mTc-diphosphate. Non-transmural infarctions could not be identified, myocardial scars however--as was to be expected--showed only activity defects within the 201T1 scintigrams without corresponding images in the 99mTc-diphosphate scans. One patient with severe coronary heart disease showed diffuse diphosphate uptake all over the myocardium with  normal 201T1 scintigram. The combined myocardial scintigraphy provides a better diagnosis, enabling an improved localisation of infarction and avoiding misinterpretations.
D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis*; D010710:Phosphates; D011868:Radioisotopes; D011877:Radionuclide Imaging; D013667:Technetium; D013793:Thallium
D010710:Phosphates; D011868:Radioisotopes; D013667:Technetium; D013793:Thallium
Negative und positive Darstellung des Myokardinfarktes