| Japanese |
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| Title | 99mTc-MIBI心電図同期心筋SPECTによる左室機能自動計測の信頼性の検討 |
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| Subtitle | 原著 |
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| Authors | 下津順子*, 石田良雄*, 村川圭三*, 片渕哲朗*, 福地一樹*, 林田孝平*, 高宮誠* |
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| Organization | *国立循環器病センター放射線診療部 |
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| Journal | 核医学 |
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| Volume | 34 |
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| Number | 12 |
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| Page | 1093-1099 |
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| Year/Month | 1997/12 |
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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」99mTc-MIBI心電図同期心筋SPECT(G-SPECT)から三次元的に左室輪郭を自動抽出し, 左室容積, 左室駆出率(LVEF)を計測する Germano らの方法(QGSプログラム)の信頼性を評価した. 各種心疾患29例にG-SPECTを施行し, QGS法から左室拡張末期容積(LVEDV), 左室収縮末期容積(LVESV), LVEFを計測し, 左室造影から得られた各値を基準として比較した. 2検者間の計測の再現性は良好であった(LVEDV: r=0.99, LVESV: r=0.99, LVEF: r=0.97). G-SPECTと左室造影から計測した値はいずれも高い相関を示したが(LVEDV: r=0.92, LVESV: r=0.94, LVEF: r=0.85), LVEDV, LVEFはやや過小評価された. 中等度以上の欠損例(17例)での検討でも相関性は良好であった(LVEDV: r=0.90, LVESV: r=0.92, LVEF: r=0.77). QGS法は優れた再現性と精度にて左室容積, LVEFを計測する有用な画像処理法と考えられた. |
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| Practice | 臨床医学：一般 |
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| Keywords | 99mTc-sestamibi, ECG gated myocardial perfusion SPECT, Left ventricular function |
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| English |
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| Title | Evaluation of the Automatic Quantification of Left Ventricular Function Using ECG Gated 99mTc-MIBI Myocardial SPECT |
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| Subtitle | Original Articles |
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| Authors | Yoriko SHIMOTSU, Yoshio ISHIDA, Keizoh MURAKAWA, Tetsuroh KATAFUCHI, Kazuki FUKUCHI, Kohei HAYASHIDA, Makoto TAKAMIYA |
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| Authors(kana) | |
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| Organization | Department of Radiology, National Cardiovascular Center |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 34 |
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| Number | 12 |
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| Page | 1093-1099 |
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| Year/Month | 1997/12 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | We studied the accuracy of left ventricular (LV) volumes and ejection fraction (EF) derived from ECG gated 99mTc-sestamibi myocardial perfusion SPECT (G-SPECT) and the software for automatic data analysis (QGS program described by Germano G et al. ). G-SPECT was performed in 29 patients with various cardiac diseases. LV end-diastolic and end-systolic volumes (LVEDV and LVESV), and LVEF determined by QGS program were compared to those by Simpson method in biplane left ventriculography (LVG). Interobserver reproducibility in measuring the G-SPECT parameters was excellent (LVEDV: r = 0.99, LVESV: r = 0.99, LVEF: r = 0.97). There was a good correlation between the values obtained from G-SPECT and LVG (LVEDV: r = 0.92, LVESV: r = 0.94, LVEF: r = 0.85), but G-SPECT tended to underestimate LVEDV and LVEF. In 17 patients with moderate to severe myocardial perfusion defects selected from the subjects, the correlation was maintained fairly high (LVEDV: r = 0.90, LVESV: r = 0.92, LVEF: r = 0.77). In conclusion, QGS program provides high accuracy and reproducibility in determining LV volumes and LVEF from G-SPECT. |
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| Practice | Clinical medicine |
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| Keywords | 99mTc-sestamibi, ECG gated myocardial perfusion SPECT, Left ventricular function |
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