| Japanese |
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| Title | 回転型ガンマカメラの心臓イメージングへの応用 - 第4報 心拍同期ECTの試み - |
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| Subtitle | 原著 |
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| Authors | 玉木長良*, 向井孝夫*, 石井靖*, 山本和高*, 藤田透*, 湊小太郎*, 鳥塚莞爾*, 鈴木幸園**, 田巻俊一**, 門田和紀**, 神原啓文**, 河合忠一** |
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| Authors(kana) | |
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| Organization | *京都大学医学部放射線核医学科, **第三内科 |
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| Journal | 核医学 |
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| Volume | 19 |
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| Number | 5 |
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| Page | 757-764 |
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| Year/Month | 1982/6 |
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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」回転型ガンマカメラを用いて, マルチゲート法心プールECT, および201Tl心筋ECTを10例に施行した. いずれも180°収集法を利用し, 収集時間は心プールで16分, 心筋で30分であった. 得られた再構成画像は, 横断面, 前額面, 矢状面, および斜位の断面の多層断層像であり, 心臓の形態や機能を立体的に把握することができた. 特に心プールECTの場合, 斜位横断面で4室が同一面で評価でき, 斜位前額面や矢状面では, おのおの心室の短軸, 長軸断面が得られるため, 4室を分離し相互関係を理解しつつ壁運動を評価でき, きわめて有用であった. 本法は再構成に約1時間を要するため, 今の所あまり実用的でないが, 今後の機器の改良による本法の普及が期待される. 「I. はじめに」Kuhlらにより紹介されたRI断層法(emission CT:ECT)は, 近年回転型カメラの開発により, 種々の施設で試みられるようになった. |
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| Practice | 臨床医学：一般 |
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| Keywords | Emission computed tomography, rotating gamma camera, ECG gated acquisition, 99mTc blood-pool imaging, thallium myocardial imaging. |
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| English |
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| Title | Cardiac Emission Computed Tomography (ECT) Using Rotating Gamma Camera (4) ECG Gating in ECT for Blood-pool and Thallium Myocardial Imaging |
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| Authors | Nagara TAMAKI*, Takao MUKAI*, Yasushi ISHII*, Toru FUJITA*, Kazutaka YAMAMOTO*, Kotaro MINATO*, Kanji TORIZUKA*, Yukisono SUZUKI**, Shunichi TAMAKI**, Kazunori KADOTA**, Hirofumi KAMBARA**, Chuichi KAWAI** |
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| Authors(kana) | |
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| Organization | *Department of Radiology and Nuclear Medicine **The 3rd Div, Department of Internal Medicine, Kyoto University Medical School |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 19 |
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| Number | 5 |
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| Page | 757-764 |
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| Year/Month | 1982/6 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary]Electrocardiographic (ECG) synchronized multiple gated acquisition was employed with emission computed tomography (ECT) using rotating gamma camera to obtain cardiac blood-pool and thallium myocardial sections. The gamma camera rotated from the LPO to RAO position over 180 degree to collect 16 views. Each cardiac cycle was divided into 8 to 12 frames for blood-pool study and 6 to 8 frames for thallium myocardial study. The total acquisition time was 16 min, and 30 min, respectively. A series of transaxial tomograms was reconstructed, and thereafter, frontal and sagittal tomograms as well as oblique tomograms were reorganized. In gated blood-pool ECT, each cardiac chamber could be visualized separately. The cephalad-tilted transaxial tomogram provided the four cardiac chamber images in a single slice (four-chamber-view), while the sagittal and the tilted frontal tomograms yielded the long axis and short axis images of the ventricles, respectively. Gated myocardial ECT permitted three-dimensional evaluation of the left ventricular myocardium in cases with hypertrophic cardiomyopathy. Although the present system is not easily applicable in routine clinical setting to gated cardiac ECT study, improvement of the detector and computer will make gated ECT more feasible for the evaluation of cardiac function. |
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| Practice | Clinical medicine |
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| Keywords | Emission computed tomography, rotating gamma camera, ECG gated acquisition, 99mTc blood-pool imaging, thallium myocardial imaging. |
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