Dual energy emission computed tomography with 99mTc pyrophosphate and 201T1 in evaluating coronary reperfusion therapy in patients with acute myocardial infarction
Hashimoto, T.; Kambara, H.; Fudo, T.; Uozu, K.; Tokunaga, S.; Tamaki, S.; Kawai, C.
Journal of Cardiology 18(2): 291-297
1988
ISSN/ISBN: 0914-5087 PMID: 2854852 Document Number: 325457
To evaluate the clinical significance of scintigraphic overlap of thallium-201 (201T1) and technetium-99m pyrophosphate (99mTc), we observed 28 patients with acute myocardial infarction (AMI) in whom coronary reperfusion was attempted. All patients underwent dual energy emission computed tomography (D-ECT) on the third post AMI day which facilitated comparing 99mTc and 201T1 images from identical slices simultaneously. The scintigraphic results of the 28 patients were as follows: (table, see text) In conclusion, (1) significant 201T1 and 99mTc overlap on D-ECT suggest very early and successful reperfusion, and (2) none of the patients with unsuccessful reperfusion exhibits overlap.