论文部分内容阅读
目的探讨MSCT和3.0T MRI在肝内周围型胆管细胞癌(IHPCC)中的应用价值,从而提高对该病的诊断及鉴别诊断水平。方法回顾性分析经临床手术或穿刺活检病理证实的IHPCC 32例,其中,20例行MSCT平扫及动态增强扫描,12例行3.0T MRI平扫及动态增强扫描,分析其影像学表现和特点。结果 IHPCC表现为类圆形或不规则形肿块,MSCT平扫为均匀或不均匀低密度,3.0T MRI肿瘤表现为T1WI为均匀或不均匀低信号,T2WI多为不均匀高信号,DWI示病灶周边实性部分为高信号,中央坏死区呈低信号,合并脓肿或黏蛋白成分呈高信号。动态增强显示大部分病灶动脉期周边呈环状或不规则状轻度强化,门脉期及延迟期强化部分向心性填充强化并持续强化,少数病灶动脉期强化不明显,门脉期及延迟期轻度填充强化。结论肝内周围型胆管细胞癌MSCT和高场强MRI平扫及动态增强均具有一定的影像学特点,在该病的诊断和鉴别诊断中发挥重要价值。
Objective To investigate the value of MSCT and 3.0T MRI in the diagnosis of intrahepatic cholangiocarcinoma (IHPCC) and to improve the diagnosis and differential diagnosis of this disease. Methods Thirty-two cases of IHPCC proved clinically or biopsy were retrospectively analyzed. Among them, 20 cases underwent MSCT scan and dynamic contrast-enhanced scan, 12 cases underwent 3.0T MRI scan and dynamic contrast-enhanced scan, and their imaging features and features were analyzed . Results IHPCC showed round or irregular mass, MSCT scan was uniform or uneven low density, 3.0T MRI showed T1WI as homogeneous or uneven low signal, T2WI mostly uneven high signal, DWI showed lesions Peripheral solid part of the high signal, the central necrotic area was low signal, merger abscess or mucin composition was high signal. Dynamic enhancement showed that most of the lesion had mild or irregular annular or irregular enhancement around the arterial phase. The portal venous phase and the delayed phase enhanced to the cardiac filling to strengthen and continue strengthening. The arterial phase enhancement of a few lesions was not obvious. The portal venous phase and the delayed phase Lightly filled to strengthen. Conclusion Both MSCT and high field MRI scan and dynamic enhancement of intrahepatic peripheral cholangiocarcinoma have certain imaging features and play an important role in the diagnosis and differential diagnosis of this disease.