| Japanese |
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| Title | ポジトロンCTとX線CT断層面の正確な対応を行うための試み |
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| Subtitle | 研究速報 |
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| Authors | 小川敏英*, 犬上篤*, 山口龍生*, 宍戸文男*, 菅野巖*, 相沢康夫*, 上村和夫* |
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| Authors(kana) | |
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| Organization | *秋田県立脳血管研究センター放射線医学研究部 |
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| Journal | 核医学 |
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| Volume | 22 |
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| Number | 6 |
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| Page | 907-911 |
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| Year/Month | 1985/6 |
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| Article | 報告 |
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| Publisher | 日本核医学会 |
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| Abstract | 「I. はじめに」ポジトロンCT (以下PETと略) は, functional anatomyを示す方法である. したがって, PETから得られる循環, 代謝等の脳の局所機能的情報は, X線CT (以下XCTと略) による正確な解剖学的情報との対応で解析されなければならない. われわれは, ポジトロン専用機であるHeadtomeIIIによる機能的情報とXCT (GE CT/T 9800) の解剖学的情報との正確な対応と再現性を確保するために, プラスチック製のface maskを用いた頭部位置決め法を用いることにより, 良好な対応が得られるようになった. 精度評価の結果, PETとXCT像の偏差は, 2mm, 2°以内と満足すべき結果を得た. 「II. 検査手順」まず最初に, PETの被検者ごとに, Fig. 1に示すような熱可塑性プラスチック (Thermosplint, 東京衛材研究所) によるface maskを作成する. |
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| Practice | 臨床医学：一般 |
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| Keywords | Positron emission CT (PET) , X-ray computed tomogram (XCT) , Face mask |
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| English |
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| Title | A Method to Obtain Accurate Correlation between Positron Emission Tomogram and X-ray Computed Tomogram |
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| Authors | Toshihide OGAWA, Atsushi INUGAMI, Tatsuo YAMAGUCHI, Fumio SHISHIDO, Iwao KANNO, Yasuo AIZAWA, Kazuo UEMURA |
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| Authors(kana) | |
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| Organization | Department of Radiology and Nuclear Medicine, Research Institute for Brain and Blood Vessels |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 22 |
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| Number | 6 |
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| Page | 907-911 |
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| Year/Month | 1985/6 |
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| Article | Report |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] Functional information of the brain obtained from a positron emission tomogram (PET) must be analyzed on the basis of anatomical information from a X-ray computed tomogram (XCT) . To achieve accurate agreement of the section slices between PET and XCT, we applied a face mask with land-marks. The face mask was made of plastic (Thermosplint, Tokyo Eizai Lab. Co.,Ltd. ) and was individually molded to each subject's face. The land-marks were consisted of the markers for the orbito-meatal line and a pair of 45°degreed tubular marks in which 68Ge sources or steal wires were inserted to estimate slice level and axial shift on the studied with PET or XCT, respectively. Using randamized samples from routine PET studies, displacement between PET and XCT studies using this technique were proved with 2 mm for slice level and 2°for slice angle. The method present here is not very strict one but has been proved to be practical and accurate. |
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| Practice | Clinical medicine |
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| Keywords | Positron emission CT (PET) , X-ray computed tomogram (XCT) , Face mask |
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