| Japanese |
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| Title | 7-ピンホールコリメータによる心筋断層シンチグラフィ (第2報) - 運動負荷による虚血の検出について - |
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| Subtitle | 原著 |
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| Authors | 西村恒彦*, 植原敏勇*, 林田孝平*, 山田幸典*, 林真*, 小塚隆弘* |
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| Authors(kana) | |
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| Organization | *国立循環器病センター放診部 |
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| Journal | 核医学 |
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| Volume | 20 |
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| Number | 2 |
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| Page | 141-148 |
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| Year/Month | 1983/3 |
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| Article | 原著 |
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| Publisher | 日本核医学会 |
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| Abstract | 「要旨」7-ピンホールコリメータを用いた心筋断層シンチグラフィを運動負荷, 再分布時に施行, 虚血の検出精度について従来法と比較検討した. 対象は冠動脈造影を施行している労作性狭心症17例, 正常5例である. 虚血の検出に関するsensitivity, specificityは, 従来法 (82%, 80%) 7-ピンホール法 (88%, 80%) であった. 両者においてcircumferential profile法の併用は客観的評価が行えた. 特に, 7-ピンホール法では, 本コリメータの有するtomographic powerの低下は, 運動負荷, 再分布時に施行する際, 位置, 体位が同じであれば梗塞診断の場合ほど考慮する必要がなく行える利点がある. したがって, 本法は, 特に梗塞を有さない労作性狭心症, ないしこれを疑う症例にて臨床的有用性が示される. また, 従来法に比し, 虚血の検出のみならず各断層面における虚血の拡がりもとらえられることが示された. |
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| Practice | 臨床医学：一般 |
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| Keywords | 7-pinhole collimator, exercise/redistribution study, ischemic heart disease, circumferential profile method |
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| English |
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| Title | Stress Thallium Perfusion Imaging with 7-pinhole Collimator (2) Detection of Ischemia by Exercise and Redistribution Study |
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| Subtitle | Original Articles |
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| Authors | Tsunehiko NISHIMURA, Toshiisa UEHARA, Kohei HAYASHIDA, Yukinori YAMADA, Makoto HAYASHI, Takahiro KOZUKA |
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| Authors(kana) | |
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| Organization | Division of Nuclear Medicine, Department of Radiology, National Cardiovascular Center |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 20 |
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| Number | 2 |
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| Page | 141-148 |
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| Year/Month | 1983/3 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] Myocardial tomography with 7-pinhole collimator was performed at exercise and redistribution, and compared with conventional thallium perfusion imaging. 17 cases with effort angina pectoris and 5 normal cases who underwent coronary angiography were studied on the detection of ischemia by both method. Quantitative analysis of perfusion image was evaluated by circumferential profile method. As the results, sensitivity and specificity of conventional and 7-pinhole tomography method were (82%, 80%) (88%, 80%) respectively. Ischemia and normal area were identified more clearly, and the extents of the ischemia were also estimated by 10-12 slice of tomographic approach. Moreover, limitations of exercise-redistribution study on detection of ishemia were less than on detection of myocardial infarction, as it takes little consideration about poor 7-pinhole tomographic power because of intraobservation with same patients at rest and exercise. Thus, we concluded that tomographic imaging is highly sensitive for the detection of significant coronary artery disease in combination with planar imaging. |
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| Practice | Clinical medicine |
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| Keywords | 7-pinhole collimator, exercise/redistribution study, ischemic heart disease, circumferential profile method |
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