Comparison of myocardial ischaemia in post-infarction patients with and without angina: Assessment by dipyridamole201T1 imaging

C. C. Yang, U. W. Chen, Y. F. Huang, B. F. Lee, S. B. Jong

Research output: Contribution to journalArticlepeer-review

Abstract

Ninety patients with old myocardial infarction were studied to evaluate the efficacy of intravenous dipyridamole201Tl imaging for the detection of myocardial ischaemia in post-infarction patients, and to compare the prevalence of ischaemia in 63 patients with post-infarction angina (group I) and 27 patients without angina (group II). Thirty-four of the patients in group I and 15 of the patients in group II received coronary arteriography (CAG) for comparison; these were labelled groups IA and IIA, respectively. On201T1 imaging, the incidence of scar with ischaemia in the infarct zone and scar with ischaemia at a distance were 72% and 42% in all patients, 89% and 52% in group I vs 33% and 19% in group II (P<0.001 and P<0.01, respectively). On CAG testing, the rates of infarct-related recanalization vessel and multi-vessel disease were 76% and 68% in group IA vs 40% and 40% in group IIA (P<0.05 and P>0.05, respectively). Thus, dipyridamole 201T1 imaging is a useful modality and postinfarction angina a proper indicator in the detection of myocardial ischaemia in post-infarction patients.

Original languageEnglish
Pages (from-to)647-654
Number of pages8
JournalNuclear Medicine Communications
Volume16
Issue number8
DOIs
Publication statusPublished - 1995 Aug

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

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