| Japanese |
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| Title | 99mTc multigated心プールSPECTによる心機能および左室壁運動の評価 |
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| Subtitle | 原著 |
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| Authors | 石野洋一* |
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| Authors(kana) | |
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| Organization | *産業医科大学放射線科学教室 |
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| Journal | 核医学 |
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| Volume | 29 |
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| Number | 9 |
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| Page | 1069-1081 |
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| Year/Month | 1992/9 |
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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」心プールSPECTによる心室容積の計測, および左室局所壁運動の評価を各種心疾患計43例に行い, その臨床的有用性を検討した. カットオフ法により求めた左室拡張末期容積, 収縮末期容積, 駆出分画は, LVGやMRIで求めた値とよく相関し, 特に水平長軸断層像が有用であった. 短絡や逆流性疾患のない症例の右室1回拍出量は, 水平長軸断層像で求めると左室とよく相関した. しかし必ずしもその左右比は理論値の1にならず, 右室の構造や収縮様式を考慮してスライス面を選択するなどさらに工夫が必要である. 左室局所壁運動の評価は輪郭表示と位相解析により行ったが, いずれもプラナー法に比し有意に優れていた. 本法はデータ収集に32分を要するが, 処理装置の進歩により解析に要する時間は約50分に短縮されており, 日常の臨床に有用な検査であると結論される. |
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| Practice | 臨床医学：一般 |
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| Keywords | Gated cardiac blood pool SPECT, Ventricular volumes, Cardiac function, Left ventricular wall motion, Phase analysis. |
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| English |
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| Title | Assessment of Cardiac Function and Left Ventricular Regional Wall Motion by 99mTc Multigated Cardiac Blood-Pool Emission Computed Tomography |
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| Subtitle | |
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| Authors | Yoichi ISHINO |
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| Authors(kana) | |
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| Organization | Departmemt of Radiology, University of Occupational and Environmental Health, School of Medicine |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 29 |
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| Number | 9 |
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| Page | 1069-1081 |
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| Year/Month | 1992/9 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary]Forty-three patients underwent the analysis of left and right ventricular (LV and RV) volumes, and LV regional wall motion by multigated cardiac blood pool single photon emission computed tomography (SPECT) with 99mTc. To calculate the cardiac volume correctly, the optimal cutoff level in relation to background level was first obtained by a phantom study. Left ventricular end-diastolic, end-systolic volume (EDV and ESV) and ejection fraction (EF) calculated thus with SPECT were correlated well with the data obtained with left ventriculography (LVG) and magnetic resonance imaging (MRI), especially using horizontal long axial image. RV stroke volume (SV) without shunt or valvular diseases was also correlated well with that of LV when it was calculated using horizontal long axial image. However, SV ratio (LVSV/RVSV) was not necessarily ideal numerical 1. In addition LV wall motion was evaluated by multicontour systolic display and phase analysis in SPECT and gated planar images. The results obtained with SPECT were better correlated with those of LVG than gated planar images. It is concluded that multigated cardiac blood pool SPECT is a clinically useful method for an evaluation of cardiac function and left ventricular regional wall motion. |
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| Practice | Clinical medicine |
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| Keywords | Gated cardiac blood pool SPECT, Ventricular volumes, Cardiac function, Left ventricular wall motion, Phase analysis. |
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