Japanese
Title運動負荷心筋スキャンによる梗塞部位再分布に関する検討 - 臨床所見, 心電図, 心血行動態との対比を中心として -
Subtitle原著
Authors西村恒彦*, 植原敏勇*, 林田孝平*, 小林満*, 小塚隆弘*, 住吉徹哉**, 斉藤宗靖**
Authors(kana)
Organization*国立循環器病センター放射線診療部, **内科
Journal核医学
Volume24
Number9
Page1343-1350
Year/Month1987/9
Article原著
Publisher日本核医学会
Abstract「要旨」前壁心筋梗塞(左前下行枝1枝障害)68症例を対象として運動負荷心筋スキャンを施行, 梗塞部位における再分布出現様式を検討するとともに, 臨床所見, 各種検査所見と対比, その臨床的意義について検討した. 全症例はA群(完全再分布)17例(25%), B群(不完全再分布)20例(29%), C群(再分布なし)31例(46%)に分類できた. A群では, 胸痛, ST降下, 側副血行路の頻度が高かった. 一方, C群では, ST上昇, 高度壁運動異常, 壁厚のひ薄化の頻度が高かった. また, B群は, 部分的ないし不完全再分布(それぞれ8例, 12例)から成るが, A群とC群の中間型を示した. 梗塞部位における再分布現象は, 高頻度に出現することが, また, 梗塞部位再分布は瘢痕, 虚血, 正常心筋が混在した多様なスペクトルを表現し, viableな残存心筋をその程度に応じ反映することが示された.
Practice臨床医学:一般
KeywordsStress thallium scintigraphy, Myocardial infarction, Redistribution, Myocardial viability.
English
TitlePoststress Redistribution of Thallium-201 in Patients with Myocardial Infarction : Comparison with Clinical, Electrocardiographic and Hemodynamic Findings
SubtitleOriginal Articles
AuthorsTsunehiko NISHIMURA, Toshiisa UEHARA, Kohei HAYASHIDA, Mitsuru KOBAYASHI, Takahiro KOZUKA, Tetsuya SUMIYOSHI, Muneyasu SAITO
Authors(kana)
OrganizationDepartment of Radiology and Department of Cardiology, National Cardiovascular Center
JournalThe Japanese Journal of nuclear medicine
Volume24
Number9
Page1343-1350
Year/Month1987/9
ArticleOriginal article
PublisherTHE JAPANESE SOCIETY OF NUCLEAR MEDICINE
Abstract[Summary]To evaluate the myocardial viability at the infarcted zone is important for assessment of post-infarction angina, aortocoronary bypass surgery and percutaneous transluminal coronary angioplasty. In this study, 68 patients with anterior myocardial infarction (single left anterior descending coronary artery disease) were evaluated by stress thallium scan and compared with clinical, electrocardiographic and hemodynamic findings. According to the stress-redistribution thallium scintigraphic findings, the patients were classified into 3 groups: (A) 17 (25%) patients with complete redistribution, (B) 20 (29%) patients with incomplete redistribution and (C) 31 (46%) patients with no redistribution. Group A had high incidence of chest pain, ST depression, post-MI angina and good collaterals. Group C had high incidence of dyskinetic, akinetic wall motion and ST elevation. These data showed group A had high probability of viable muscle and group C had high probability of scar at the infarcted zone. Group B showed intermediate type between group A and C. There were 12 patients with incomplete and 8 patients with partial redistribution. In conclusion, the viability of myocardium at the infarcted zone was assessed by stress thallium scan. It was demonstrated that the patients with myocardial infarction had broad spectra of mixture of viable and necrotic tissue at infarcted zone.
PracticeClinical medicine
KeywordsStress thallium scintigraphy, Myocardial infarction, Redistribution, Myocardial viability.

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