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ID 31576
JaLCDOI
フルテキストURL
著者
Fujishima, Mamoru Okayama University
Suemitsu, Ichizou Okayama University
Sei, Tetsurou Okayama Univeristy
Takeda, Yoshihiro Okayama University Kaken ID
Hiraki, Yoshio Okayama University
抄録

A total of 124 lesions from 1 to 6cm in diameter, including 31 cavernous hemangiomas, 32 metastases and 61 hepatocellular carcinomas (HCC) were analyzed to study the usefulness of magnetic resonance imaging (MRI) at 0.5 Tesla to differentiate focal hepatic lesions on the basis of qualitative criteria. Each focal hepatic lesion was assessed for shape, internal architecture and signal intensity relative to normal liver parenchyma. While all cavernous hemangiomas and metastases except one lesion could be detected, detection rate of HCC was significantly inferior to that of the other two diseases. A tumor capsule and a hyperintense focus on T1-weighted images were demonstrated in only HCC lesions in strong contrast with the other two diseases; however, metastases with slow-growing characteristics or subacute hematoma may appear as similar images. Cavernous hemangiomas appeared markedly hyperintense on T2-weighted images in 23 of 31 lesions, but one metastasis and one HCC had similar images. A multivariate analysis of several MRI resulted in the following mean discriminant scores: cavernous hemangioma, -1.2652; metastasis, 0.1830; and HCC, 0.7138. It appeared to be possible to differentiate the three diseases with 84.4 percent accuracy.

キーワード
magnetic resonance imaging
liver neoplasms
multivariate analysis
Amo Type
Article
発行日
1993-04
出版物タイトル
Acta Medica Okayama
47巻
2号
出版者
Okayama University Medical School
開始ページ
117
終了ページ
120
ISSN
0386-300X
NCID
AA00508441
資料タイプ
学術雑誌論文
言語
English
論文のバージョン
publisher
査読
有り
PubMed ID
Web of Science KeyUT