山梨医科大学雑誌　第7巻2号　053-055(1992)

Magnetic Resonance (MR) Differentiation of Hepatocellular Carcinoma
from Hepatic Cavernous Hemangioma: Efficacy of T2 Values
for Tumors Smaller than 2 cm

Kuni OHTOMO, Yuji ITAI, Tsutomu ARAKI, Yasuhito SASAKI, and Guio UCHIYAMA

Abstract: Fifty-seven patients with a total of 68 hepatocellular carcinoma (HCC) lesions smaller than 2 cm and 84 with a total of 108 cavernous hemangioma lesions smaller than 2 cm were studied with magnetic resonance (MR) imaging (1.5T) to evaluate the efficacy of T2 values in differential diagnosis. T2 values were calculated by the two-point method. The mean T2 value for HCC and hemangioma was 47.1 msec±6.9 and 81.3 msec±23.7 respectively. There was a significant difference (p<0.001) between T2 values for HCC and those for hemangioma. When the cutoff T2 value was set at 60 msec, 162 (92.8%) of 176 lesions were correctly classified. Sensitivity and specificity for HCC were 100% and 87%, respectively. We conclude that MR imaging with T2 measurement is very useful in differentiating between HCC and hemangioma smaller than 2 cm.

Key words: Liver, MR studies, Liver neoplasm diagnosis, Liver neoplasm, MR studies




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