| Japanese |
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| Title | NMR-CTの臨床応用 (第3報) - 肝および膵疾患への応用 - |
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| Subtitle | 原著 |
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| Authors | 池平博夫*, 福田信男*, 舘野之男*, 遠藤真広*, 松本徹*, 飯沼武*, 江原正明** |
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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, **千葉大学医学部第一内科学教室 |
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| Journal | 核医学 |
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| Volume | 21 |
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| Number | 10 |
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| Page | 1277-1284 |
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| Year/Month | 1984/10 |
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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」常伝導低磁場(0.1Tesla)NMR-CT装置の空間分解能, コントラスト分解能およびTl値の鑑別診断や形態診断への有効性についての潜在的将来的可能性について検討を行うことを目的として, これまでにわれわれが経験した肝および膵疾患の症例の中から代表的なものを選んで検討を加えた. 腹部は常伝導NMR-CT装置にとって良好な画像を得ることは非常に困難な領域であるが, スリットファントームでは2mmまで分解されており, 腹部の臓器も良好に描出され, 形態診断にも非常に有効であった. Tl画像より得られたTl値では, 肝癌(300-500m秒), 肝血管腫(500-700m秒), 嚢胞(800m秒以上)とそれぞれの鑑別が可能であった. また異なった画像の重ね合わせを試み, 複合(hybrid)画像とでもいうべき新しい画像を作成した. |
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| Practice | 臨床医学：一般 |
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| Keywords | N. M. R. imaging, Tl image, Inversion Recovery image, Liver disease, Pancreas disease. |
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| English |
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| Title | Clinical Trial of NMR-CT (Report 3) - The Utility of NMR-CT for Liver and Pancreas Diseases - |
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| Subtitle | Original Articles |
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| Authors | Hiroo IKEHIRA*, Nobuo FUKUDA*, Yukio TATENO*, Masahiro ENDO*, Toru MATSUMOTO*, Takeshi IINUMA*, Msaaki EBARA** |
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| Authors(kana) | |
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| Organization | *Division of Clinical Research, National Institute of Radiological Sciences, **The First Department of Internal Medicine, Chiba University Medical School |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 21 |
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| Number | 10 |
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| Page | 1277-1284 |
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| Year/Month | 1984/10 |
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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 present ongoing clinical study, which began last summer, utilizes an NMR-CT scanner with a resistive megnet providing a low-grade static magnetic field (0.1 Tesla). Our main purpose is to determine the potential of this type of NMR-CT system in particular its spatial and contrast resolution, and the utility of its Tl image in differential diagnosis and detection of lesions. The NMR-CT system used in this study is based on four vertical coil air-core magnets operating at about 0.1 Tesla and giving a proton resonance frequency of 4.5 MHz. Examination of patients with hepatic and pancreatic disease indicated that the NMR-CT is suitable for survey studies on solid tumors, hemangioma and cystic lesions. The NMR-CT also provided very useful Tl data. The Tl of solid tumor was found to be 300 to 500 msec; that of hemangioma was 500 to 700 msec, and that of cystic lesion was usually over 800 msec. The detection of hepatoma in the cirrhotic liver was found to be difficult in some cases because of the similarity of their spin-lattice relaxation times and the small degree of contrast between tumor and cirrhotic liver parenchyma. Differential diagnosis of solid tumor, hemangioma, and cystic disease can be performed through reference to their discrete Tl values. The borders of these lesions are apparently clearer than with X-ray CT imaging. |
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| Practice | Clinical medicine |
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| Keywords | N. M. R. imaging, Tl image, Inversion Recovery image, Liver disease, Pancreas disease. |
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