磁共振成像诊断原发性肝癌评价

本文分析了１６５例原发性肝癌的磁共振成像（ＭＲＩ）价值。ＳＥ序列为Ｔ１加权成像（Ｔ１ＷＩ）；ＲＡＲＥ序列为Ｔ２加权成像（Ｔ２ＷＩ）。在Ｔ１ＷＩ上对肝脏结构显著显示清楚，而Ｔ２ＷＩ上主要对肝癌信号异常敏感性高，故对肝癌的范围、大小显示较为清楚。两处序列联合应用以及多层多平面横断加冠状切层可以精楚构画肝癌的部位、大小和范围。本研究提示，其敏感性ＭＲＩ比ＣＴ略高，但无统计学意义。ＭＲＩ优于Ｂ超，但不及Ｂ

Role of Magnetic Resonance Imaging in the Diagnosis of Primary Carcinoma of Liver

One hundred and sixty five patients with primary carcinoma of liver were evaluated by magnetic resonance imaging(MRI). The Studies were performed with SE T_1 weighted image(T_1WI) ahd RARE T_2 weighted image (T_2WI)sequence. clear anatomic structure of liver was revealed by T_1WI. Abnormal MR signal of primary carcinoma of liver was discernible on T_2WI view such as the extent and size of tumor. Both T_1WI and T_2WI sequences with multisec- tions and multi-planes were capable to delineate the site,size and extent of tumor clearly. Comparing the sensitivity of MRI with other techniques in detective rate of primary carcinoma of liver MRI was slightly superior to CT,but there was no significant difference(P>0. 05). MRI was superior to B-ultrasound, however, the latter was simple and economical Though MRI was inferior as compares with hepatoangiography,it demonstrated mass directly and clearly without inva- sive femoral artery catheterization nor bolus contrast. MRI was obviously Superior to AFP test and nuclide scintigraphy in our study.