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目的探讨MR全身弥散加权成像(WB-DWI)在肝细胞肝癌(hepatic cell carcinoma,HCC)M分期中的价值。方法回顾性分析23例经临床、病理证实的HCC患者首次行WB-DWI检查的图像,统计肝外非淋巴结转移灶的分布及数目并进行对比分析。结果 WB-DWI未发现全身转移(M0)者11例,余12例均发现肝外转移灶(M1),主要为肺转移及骨转移。肺转移5例共14个病灶,WB-DWI发现12个,2个转移灶在WB-DWI上显示不清,结合胸部CT表现,肺部转移灶检出率较高(12/14,85.7%);骨转移8例共17个病灶,骨骼系统转移灶全部检出(17/17)。其余脏器脑部、脾、胰腺、肾上腺及泌尿生殖系统等均未见明显转移灶。全身非转移性病灶共计37处。结论 WB-DWI能够评估HCC患者全身情况,指导异常信号灶进行必要的相关检查,对于HCC患者M分期具有重要的价值。
Objective To investigate the value of MR whole body diffusion-weighted imaging (WB-DWI) in M staging of hepatocellular carcinoma (HCC). Methods We retrospectively analyzed the images of WB-DWI in 23 HCC patients with clinically and pathologically confirmed pathology. The distribution and number of extrahepatic non-lymph node metastases were analyzed and compared. Results 11 cases of systemic metastasis (M0) were not found in WB-DWI, and extrahepatic metastases (M1) were found in the other 12 cases, mainly lung metastasis and bone metastasis. There were 14 lesions in 5 cases of lung metastases, 12 in WB-DWI and 2 in WB-DWI, and the detection rate of lung metastases was higher in combination with CT (12 / 14,85.7% ); Bone metastases in 8 cases a total of 17 lesions, skeletal system metastases were all detected (17/17). The remaining organs of the brain, spleen, pancreas, adrenal gland and genitourinary system were no significant metastases. Total 37 non-metastatic lesions. Conclusion WB-DWI can assess the systemic condition of HCC patients and guide the abnormal signal stoves to carry out the necessary related examinations, which is of great value for M stage of HCC patients.