Evaluation of the effect of PTCR/PTCA by 99mTc-MIBI myocardial imaging in acute and old myocardial infarction.

T. Kondo, H. Kurokawa, M. Fujiwara, H. Toyama, K. Sakakura, J. Ishii, M. Nomura, C. Yan, S. Q. Xu, H. Hishida

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Abstract

This study is to clarify the ability of technetium-99m-Hexakis-2-methoxyisobutyl isonitrile(MIBI) myocardial scintigraphy for assessment of the effect of PTCR/PTCA as compared with conventional thallium-201 myocardial scintigraphy (201Tl). 99mTc-MIBI (740-888MBq) was injected before emergency PTCR/PTCA, and the initial imaging was performed immediately after PTCR/PTCA in 4 patients with acute myocardial infarction (AMI). On the other hand, in 2 patients with old myocardial infarction (OMI), 201Tl and MIBI myocardial imagings were performed before and one week after rescue PTCA. The defect area on the follow-up MIBI imaging was smaller than that on the initial MIBI imaging in 2 patients with successful emergency PTCR/PTCA. But in the other 2 AMI patients with unsuccessful reperfusion, the defect area did not significantly decrease after PTCR/PTCA. Reperfusion was successful in one of the two patients with OMI. In both the two patients with OMI, the MIBI defect area did not significantly decrease after rescue PTCA. MIBI myocardial scintigraphy is a useful noninvasive method for evaluating the effect of emergency PTCR/PTCA for myocardial salvage in patients with AMI, because MIBI is a kit type agent, and it does not redistribute.

Original languageEnglish
Pages (from-to)822-827
Number of pages6
JournalChinese medical journal
Volume105
Issue number10
Publication statusPublished - 10-1992

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All Science Journal Classification (ASJC) codes

  • Medicine(all)

Cite this

Kondo, T., Kurokawa, H., Fujiwara, M., Toyama, H., Sakakura, K., Ishii, J., Nomura, M., Yan, C., Xu, S. Q., & Hishida, H. (1992). Evaluation of the effect of PTCR/PTCA by 99mTc-MIBI myocardial imaging in acute and old myocardial infarction. Chinese medical journal, 105(10), 822-827.