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A Case Report Evaluating the Course of Ischemic Heart Disease, using Myocardial Integrated Ultrasonic Backscatter and Myocardial Scintigraphy Tomoki Doue 1 , Yoshihiko Adachi 1 , Kazuki Ito 1 , Shuji Katoh 1 , Tatsuya Yuba 1 , Takuji Tanabe 1 , Tetsuo Noda 2 1Division of Cardiovascular Medicine, Murakami Memorial Hospital, Asahi University 2Division of Central Laboratory, Murakami Memorial Hospital, Asahi University Keyword: integrated backscatter , cyclic variation , BMIPP心筋SPECT , myocardial integrated ultrasonic backscatter , myocardial scintigraphy , ischemic heart disease pp.643-647
Published Date 2002/6/15
DOI https://doi.org/10.11477/mf.1404902494
  • Abstract
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We report a case evaluating the course of ischemic heart disease using myocardial integrated ultrasonic backscatter (IBS) and myocardial scintigraphy. The patient was a 77-year-old female, who initially visited our hospital because of chest oppression. Echocardio-graphy showed decreased posterior wall thickening, and decreased cyclic variation (CV) of IBS in the infero-posterior wall. Myocardial scintigraphy using BMIPP demonstrated moderately to severely reduced uptake in the infero-posterior wall. A tentative diagnosis of an-gina pectoris was made. The patient had chest pain 15 days after the initial consultation, so she was examined by emergent coronary arteriography which showed the total occlusion of segment 1. A diagnosis of acutemyocardial infarction (AMI) was confirmed. She was treated with percutaneous transluminal angioplasty and stenting for segment 1, and revascularization was suc-cessful two hours after the onset of AMI. Ten days after the onset of AMI, although the CV of IBS was elevated in the infero-posterior wall, BMIPP myocardial SPECT showed severely reduced uptake in the infero-posterior wall. On the 34th day after the onset of AMI, coronary arteriography showed no restenosis of segment 1. Although the CVof IBS became normal in the infero-posterior wall 50 days after the onset of AMI, myocar-dial scintigraphy using a flow tracer showed moderately reduced uptake in the inferior wall. If revascularization is successful, the CV of IBS is elevated in the early stage. The CV of IBS is therefore useful for a diagnosis of ischemic heart disease and evaluation of myocardial viability.


Copyright © 2002, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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