| Japanese |
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| Title | NMR-CTにおける心血管系の臨床応用 |
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| Subtitle | 原著 |
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| Authors | 今井均*, 吉田勝哉*, 渡辺滋*, 増田善昭*, 稲垣義明*, 池平博夫**, 福田信男**, 舘野之男** |
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| Authors(kana) | |
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| Organization | *千葉大学医学部第三内科, **放射線医学総合研究所 |
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| Journal | 核医学 |
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| Volume | 21 |
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| Number | 12 |
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| Page | 1557-1567 |
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| Year/Month | 1984/12 |
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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による心血管系疾患診断の有用性を評価するため, 常伝導, 0.1 TeslaのNMR-CT (旭化成社製MARK-J) を用い, 27症例 (正常10例, 患者17例) について臨床検討を行った. 正常例では全例で各心腔, 心筋, 大動脈, 肺動静脈, 大静脈などの大血管の識別がNMR-CTにより可能であった. 病的症例では各疾患に以下のような特徴的所見が得られた. 2例の陳旧性前壁中隔梗塞例では, 前壁中隔の壁菲薄化や心室瘤や左室内血栓が認められた. 他の陳旧性前壁側梗塞の1例と後壁側壁梗塞の1例では梗塞部のNMR像による描出は困難であった. うっ血型心筋症の1例では壁の肥厚のない左室腔拡大が認められ, 2例の閉塞性肥大型心筋症では壁肥厚と心腔の狭少化が認められた. 心血管型Behcet病の1例では右室壁在血栓が, 僧帽弁狭窄症の2例では拡大した左房と左房内血栓がNMR像で描出された. 3例の胸部大動脈瘤例では拡張した動脈瘤と壁在血栓が認められ, 4例の解離性大動脈瘤例では剥離内膜により分けられる解離腔と真腔および壁在血栓が認められた. 左室腔, 左室壁, 血栓のT1値の平均と標準偏差はおのおの593±89, 341±20, 361±84であった. 血栓は左室壁にくらべ一般に低いT1値をとるが, 新鮮血栓とおもわれる例では左室心筋壁より大きな値をとった. 以上の結果はNMR-CTが心血管系疾患診断に有用であることを示すものである. |
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| Practice | 臨床医学：一般 |
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| Keywords | NMR, Cardiovascular diseases, Myocardial infarction, Cardiomyopathy |
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| English |
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| Title | Clinical Application of Nuclear Magnetic Resonance Imaging (resistive type) on Cardiovascular Disease |
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| Subtitle | Original Articles |
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| Authors | Hitoshi IMAI*, Katsuya YOSHIDA*, Shigeru WATANABE*, Yoshiaki MASUDA*, Yoshiaki INAGAKI*, Hiroo IKEHIRA**, Nobuo FUKUDA**, Yukio TATENO** |
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| Authors(kana) | |
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| Organization | *The Third Department of Internal Medicine, Chiba University School of Medicine, **National Institute of Radiological Sciences |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 21 |
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| Number | 12 |
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| Page | 1557-1567 |
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| Year/Month | 1984/12 |
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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 order to evaluate the usefulness of Nuclear Magnetic Resonance (NMR) imaging in diagnosing cardiovascular disease, 27 subjects were examined using a 0.1-Tesla resistive type (ASAHI MARK-J). In 10 normal subjects, four cardiac chambers, interventricular septum, aorta, pulmonary vessels and vena cava were clearly identified in NMR imaging. In two patients with old anteroseptal myocardial infarction, anteroseptal wall thinning and left ventricular aneurysm with mural thrombi were demonstrated. In two cases of antrolateral and posterolateral myocardial infarction, however, infarcted areas were not identified in NMR imaging. In one patient with congestive cardiomyopathy, enlarged left ventricle without hypertrophy was recognized. In two patients with hypertrophic obstructive cardiomyopathy, NMR imaging disclosed thickened left ventricular wall associated with its narrowed cavity. A mural thrombus in the right ventricle was distinctly visualized in one patient with cardio-vascular Behcet's disease. In two patients with mitral valve stenosis, enlarged left atrium with a mural thrombus was clearly demonstrated in both cross and longitudinal sections. In three patients with thoratic aortic aneurysm, local dilatation of aorta and mural thrombi were recognized. In four patients with dissecting aortic aneurysm, double channels with all intimal flap in the aorta were visualized in NMR imaging. Mean T1 values and standard deviations of left ventricle, left ventricular wall, and thrombi were 593+-89, 341+-20, 316+-84 msec, respectively. Mean T1 values of thrombi were ordinally shorter than those of left ventricule. But some thrombi which might be expected fresh had longer T1 values. Thus, usefulness of NMR imaging in diagnosing various abnormalies of cardiovascular diseases was confirmed. |
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| Practice | Clinical medicine |
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| Keywords | NMR, Cardiovascular diseases, Myocardial infarction, Cardiomyopathy |
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