| Japanese |
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| Title | 心RIアンジオグラフィによる心筋梗塞症例における局所壁運動の評価 |
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| Subtitle | 《原著》 |
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| Authors | 西村恒彦*, 植原敏勇*, 小塚隆弘* |
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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 | 17 |
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| Number | 8 |
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| Page | 929-938 |
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| Year/Month | 1980/9 |
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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」心RIアンジオグラフィによる局所壁運動の観察を心筋梗塞50症例について, 同時に施行した左心室造影と比較検討することから, その臨床的評価を行なった. 心RIアンジオグラフィによる局所壁運動の観察はRI画像における辺縁抽出方法としてgradient imageを作成することにより, また, シネディスプレイによる動画として行なった. 左心室造影と比較して350 segmentsにつき一致率は84%であり, 収縮部位, 様式とも非観血的に精度高く行なえることがわかった. また, 局所壁運動の定量化としてregional ejection fractionを導入, 7つの部位に分け検討したところ, akinesis 0.29, hypokinesis 0.40, normal 0.60とよく分離できた. 本法はくり返し施行することができるので, 急性期からの経過観察, 慢性期における予後判定あるいは冠血行再建術前後における評価など, 多いに活用されるべきと考えられる. |
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| Practice | 臨床医学：一般 |
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| Keywords | Radionuclide cardioangiography, segmental wall motion, regional ejection fraction, gradient image, myocardial infarction |
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| English |
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| Title | Clinical Evaluation of Segmental Wall Motion by Radionuclide Cardioangiography in the Patients with Myocardial Infarction |
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| Authors | Tsunehiko NISHIMURA, Toshiisa UEHARA, Takahiro KOZUKA |
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| Authors(kana) | |
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| Organization | Department of Cardiology and Nuclear Medicine, National Cardiovascular Center |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 17 |
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| Number | 8 |
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| Page | 929-938 |
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| Year/Month | 1980/9 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] To detect segmental wall motion of left ventricle is useful to identify the size and location of infarcted area in coronary arteries diseases. In this study, segmental wall motion by radionuclide cardioangiography were evaluated to compare with contrast left ventriculography in fifty patients of myocardial infarction. Segmental wall motion in RAO position by first pass method, in LAO position by multi-gated method were evaluated using an Anger camera and on-line minicomputer system by following methods; ED, ES images, sequential images, edge display, regional ejection fraction and movie imaging system (MIS). The percent agreements of segmental wall motion by RI and LVG were 84% in 350 segments of 50 cases. In all segments, segments 4, 6, 7 were better agreements than other segments. For the degree of wall motion, skinesis and dyskinesis were good agreements in both methods, while hypokinesia was slightly poor agreement (62%). On the other hand, the size of infarction, that is, percent thallium defect area was good correlated with radionuclide left ventricular ejection fraction (r=-0.855 in anterior infarction, r=-0.646 in inferior infarction). From these data, wall motion was thought to be closely related with left ventricular function, therefore, regional ejection fraction in seven areas in left ventricular image was developed and compared with segmental wall motion in left ventriculogram according to the classification of A.H.A. Comittee Report. The value of regional ejection fraction is 0.29, 0.40, 0.60 in akinesis, hypokinesis and normal. In conclusion, radionuclide cardioangiography is useful in the detection of abnormal segmental wall motion as noninvasive methods. |
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| Practice | Clinical medicine |
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| Keywords | Radionuclide cardioangiography, segmental wall motion, regional ejection fraction, gradient image, myocardial infarction |
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