Hepatic tumors: dynamic MR imaging.
Hepatic tumors: dynamic MR imaging.
复制标题
肝脏肿瘤：动态 MR 成像。
DOI：
10.1148/radiology.163.1.3029804
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发表时间：
1987
期刊：
影响因子：
19.7
通讯作者：
K. Furukawa
中科院分区：
文献类型：
--
作者：
K. Ohtomo;Y. Itai;K. Yoshikawa;T. Kokubo;N. Yashiro;M. Iio;K. Furukawa
36例肝肿瘤患者（28例肝细胞癌，7例海绵状血管瘤，1例转移性肿瘤）进行了检查与系列磁共振（MR）成像后，团注静脉注射0.05 mmol/kg钆-二乙烯三胺五乙酸。血管瘤的典型MR成像模式（7例病例中有5例[71.4%]）是增强前图像上信号强度降低的病变，在团注动态期周围增强，延迟扫描图像上完全填充高信号强度。28例肝细胞癌在动态期表现出多种对比增强模式。在21例患者（75%）中，在延迟期肿瘤内没有高信号强度区域。12例（42.8%）患者出现延迟增强的周边晕。肝细胞癌的组织学相关性表明，增强程度与肿瘤血管分布相对应，周边晕与纤维包膜结构相对应。
Thirty-six patients with hepatic tumors (28 hepatocellular carcinomas, seven cavernous hemangiomas, one metastatic tumor) were examined with serial magnetic resonance (MR) imaging, after a bolus intravenous injection of 0.05 mmol/kg gadolinium-diethylenetriaminepentaacetic acid. A typical MR imaging pattern for hemangiomas (present in five of seven cases [71.4%]) was a lesion of diminished signal intensity on precontrast images, peripheral contrast enhancement during the bolus dynamic phase, and complete fill-in of high signal intensity on delayed scan images. Twenty-eight hepatocellular carcinomas showed a variety of contrast enhancement patterns during the dynamic phase. In 21 patients (75%), there was no area of high signal intensity within the tumor on the delayed phase. A peripheral halo with delayed enhancement was noticed in 12 patients (42.8%) Histologic correlation in hepatocellular carcinomas showed that the degree of contrast enhancement corresponded to tumor vascularity and that the peripheral halo corresponded to fibrous capsular structure.