| Japanese |
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| Title | NMR-CTの臨床応用 (第4報) - ハイブリッド画像の臨床的検討 - |
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| Subtitle | 原著 |
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| Authors | 池平博夫*, 福田信男*, 山根昭子*, 鳥居伸一郎**, 松本徹*, 飯沼武*, 舘野之男* |
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| Authors(kana) | |
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| Organization | *放射線医学総合研究所臨床研究部, **慈恵会医科大学泌尿器科学教室 |
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| Journal | 核医学 |
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| Volume | 22 |
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| Number | 1 |
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| Page | 67-73 |
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| Year/Month | 1985/1 |
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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」NMR-CTによって得られる画像は, パルス系列の選択の仕方によって, 緩和時間や水素原子核 (プロトン) 密度の組み合わせで強調される領域が異なるために, 同一画像で病変部と周囲臓器を全体として観察し易い画像として描出することは困難であった. そこで今回われわれはNMR-CTでは自由に強調する領域を変化させ, しかも被検者を同じ体位のまま異なった画質の画像を撮影することができるという利点を利用し, 各画像の重ね合わせによっていわゆるハイブリッド画像を作成し, 一枚の画像で緩和時間の異なる領域を描出させ, 臨床診断への有効性について検討を加えたので報告する. |
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| Practice | 臨床医学：一般 |
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| Keywords | NMR image, Hybrid image, Image averaging, Nuclear magnetic resonance |
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| English |
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| Title | Clinical Trial of NMR-CT (Report 4) : Clinical Evaluation of Hybrid Image |
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| Subtitle | |
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| Authors | Hiroo IKEHIRA*, Nobuo FUKUDA*, Teruko YAMANE*, Shinichiro TORII**, Toru MATSUMOTO*, Takeshi IINUMA*, Yukio TATENO* |
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| Authors(kana) | |
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| Organization | *Division of Clinical Research, National Institute of Radiological Sciences, **Department of Urology, The Jikei University School of Medicine |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 22 |
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| Number | 1 |
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| Page | 67-73 |
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| Year/Month | 1985/1 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] In our evaluation we utilized the Asahi Mark-J NMR-CT system, with a resistive vertical quadrupolar electromagnet (0.1 Tesla) and a proton resonance frequency of 4.5 MHz. Our main imaging methods are the inversion- recovery or IR, saturation-recovery, or SR, and calculated T1. Difference, or D images, constructed by subtracting the data of the IR signal from that of the SR signal, have also been obtained in some cases. The system allows averaging of raw data. Hybrid images were constructed from two or more images to obtain clear definition of areas of interest. By using the hybrid image, several tissues of different relaxation times can be shown in the same image. Application in our study of the newly developed hybrid image indicates its importance in the detection and diagnosis of lesion, especially the detection of the differentiation of an edematous lesion from a tumor, and also abnormal fluid collection such as the pleural effusion or ascites. We hope that these example make clear the great potential of hybrid images in the determination of the size, location and the grade of abnormal lesions due to the nice contrast between normal and abnormal tissue. |
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| Practice | Clinical medicine |
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| Keywords | NMR image, Hybrid image, Image averaging, Nuclear magnetic resonance |
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