| Japanese |
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| Title | 運動負荷99mTc-MIBI心筋シンチグラフィにおける補助的診断指標 (肺野RI集積, 左室一過性拡大) - 201TlCl心筋シンチグラフィとの比較検討 - |
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| Subtitle | 原著 |
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| Authors | 汲田伸一郎*,**, 西村恒彦*,***, 植原敏勇*,***, 下永田剛*, 林田孝平*, 片渕哲朗* |
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| Authors(kana) | |
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| Organization | *国立循環器病センター放射線診療部, **現;日本医科大学付属病院放射線科, ***現;大阪大学医学部バイオ研 / 中央放射線部 |
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| Journal | 核医学 |
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| Volume | 30 |
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| Number | 6 |
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| Page | 621-626 |
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| Year/Month | 1993/6 |
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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」 虚血性心疾患とくに多枝病変に対する運動負荷201TlCl(Tl)心筋シンチグラフィの診断に際し, 視覚的評価に加え, washout rate, 肺野Tl集積, 負荷時左室一過性拡大などの補助的診断指標が有用視されている. 著者らは虚血性心疾患27例を対象とし, 運動負荷Tlおよび99mTc-MIBI心筋シンチグラフィを施行し, 両シンチグラフィにおける肺野RI集積ならびに左室一過性拡大(LVTD)所見の比較検討を行った. 肺野RI集積度(LU)はMIBIイメージにおいて有意に低値を示したが, 両LUの相関はr=0.77と良好であった. またSPECT短軸像より算出したLVTDの指標(mean radial ratio)はTl, MIBI両イメージの比較においてr=0.27と低い相関であり, 重症虚血心におけるMIBI左室内腔評価の臨床的有用性は低いことが考えられた. |
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| Practice | 臨床医学：一般 |
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| Keywords | 201TlCl, 99mTc-MIBI, Exercise myocardial imaging, Lung uptake, Left ventricular transient dilatation |
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| English |
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| Title | Increased Lung Uptake and Transient Left Ventricular Dilatation at Stress Myocardial Scintigraphy with 99mTc-MIBI |
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| Authors | Shin-ichiro KUMITA, Tsunehiko NISHIMURA, Toshiisa UEHARA, Tsuyoshi SHIMONAGATA, Kohei HAYASHIDA, Tetsuro KATAFUCHI |
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| Organization | Department of Radiology, National Cardiovascular Center, Osaka |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 30 |
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| Number | 6 |
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| Page | 621-626 |
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| Year/Month | 1993/6 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] On exercise 201Tl scintigraphy in coronary artery disease, left ventricular transient dilatation (LVTD) and increased lung uptake were noted as a marker of multivessel critical stenosis. To compare the two markers of 99mTc-methoxyisobutyl isonitrile (MIBI) and 201Tl, planar and SPECT myocardial scintigraphy were performed with both radiopharmaceuticals in 27 patients with ischemic heart disease. Lung uptake (lung/max myocardial ratio) of MIBI was significantly lower than that of 201Tl, but the relationship of the lung uptake was linearly correlated (r=0.77). The LVTD ratio (mean radial ratio=m-RR) was determined by the mean radius of the immediate postexercise short axial image by that of rest (redistribution) image. There was no significant correlation between the m-RR of 201Tl and that of MIBI (r=0.27). We suggest that the mechanism of LVTD is due to not only subendmyocardial ischemia but also another factors. |
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| Practice | Clinical medicine |
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| Keywords | 201TlCl, 99mTc-MIBI, Exercise myocardial imaging, Lung uptake, Left ventricular transient dilatation |
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