| Japanese |
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| Title | 心電図同期心プール断層法による局所壁運動の検討 |
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| Subtitle | 原著 |
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| Authors | 渡辺健*, 池部伸彦*, 田中啓*, 内藤雄一*, 後藤隆之*, 後藤義一*, 小林泰彦*, 南博*, 永井義一*, 山沢いく宏*, 伊吹山千晴*, 村山弘泰** |
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| Authors(kana) | |
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| Organization | *東京医科大学内科第二講座, **放射線科 |
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| Journal | 核医学 |
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| Volume | 22 |
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| Number | 9 |
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| Page | 1317-1326 |
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| Year/Month | 1985/9 |
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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」 三次元評価可能なEmission CTを心動態シンチに応用して (gated cardiac pool emission CT, Pool-ECT) , 心筋梗塞患者の壁運動評価を行い, 従来のFirst pass (FP) 法および平衡時 (EQ) 法と比較検討した. 対象は健常人5例, 心筋梗塞患者14例である. 方法は, 最初にFP法およびEQ法を行い, 続いてpool-ECT法を施行し, 左室長軸縦断像, 同横断像および左室短軸像を得, 壁運動, 振幅および位相の3点について梗塞部位別に検討した. 結果は, pool-Ecr法は従来の方法に比べ異常部位の検出にすぐれ, 特にFP法では不正確となりやすい後・下壁の所見をより正確に診断することが可能であった. pool-ECT法は, (1) 各心腔間の重複がない. (2) 特定の部位を複数の断層面で評価可能である. (3) 従来の方法では検出不可能であった小梗塞巣の検出も可能である. 等の利点を有し, 今後各種心疾患の診断において重要な役割りを果たすものと期待される. |
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| Practice | 臨床医学：一般 |
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| Keywords | SPECT, Regional wall motion, Phase analysis, Myocardial infarction |
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| English |
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| Title | Evaluation of the Wall Motion Abnormality Using ECG-gated Cardiac Pool Emission CT in Patients of Myocardial Infarction |
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| Subtitle | Original Articles |
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| Authors | Takeshi WATANABE*, Nobuhiko IKEBE*, Hiraki TANAKA*, Yuichi NAITO*, Takayuki GOTO*, Yoshikazu GOTO*, Yasuhiko KOBAYASHI*, Hiroshi MINAMI*, Yoshikazu NAGAI*, Ikuhiro YAMASAWA*, Chiharu IBUKIYAMA*, Hiroyasu MURAYAMA** |
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| Authors(kana) | |
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| Organization | *The Second Department of Internal Medicine, **Radiology, Tokyo Medical College |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 22 |
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| Number | 9 |
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| Page | 1317-1326 |
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| Year/Month | 1985/9 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] The purpose of this study is to evaluate the usefulness of ECG-gated cardiac pool emission CT (pool-ECT) compared with the conventional first pass (FP) and equilibrium (EQ) methods in evaluating wall motion abnormality (WMA) . Five normal volunteers and 14 patients with myocardial infarction were studied. Following the administration of vivo-labeled 99mTc-RBC 40mCi, the pool-ECT method was performed by rotating the gamma camera 180° around the patient at a rate of 5°/30 sec, then sagittal, coronal and 4-chamber view tomographic images were reconstructed. Moreover the amplitude and phase images were derived from first harmonic Fourier analysis and the pool-ECT data was compared with the FP and EQ data in respect to wall motion, amplitude and phase delay. The sensitivity regarding WMA was improved in 12 (55%) of all 22 WMA by pool-ECT. Conventional and pool-ECT methods could detect the diminished amplitude activity in 16 (73%) and in 19 (86%) of all 22 infarct site respectively, and could detect the phase delay in 16 (73%) and in 20 (91%) of all 22 infarct site respectively. The pool-ECT method was more sensitive to detect WMA, especially inferior WMA which was inaccurately estimated by FP method. The advantages of this method was that the overlapping of each cardiac chamber could be ignored, that the wall motion could be evaluated by three dimensional tomographic images and that it could demonstrate small WMA which could not be detected by conventional methods. |
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| Practice | Clinical medicine |
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| Keywords | SPECT, Regional wall motion, Phase analysis, Myocardial infarction |
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