【摘要】 目的 应用多层螺旋CT(MSCT)行肝动脉期、门静脉期、平衡期全肝动态增强扫描，比较三期的病灶检出率，并就检出敏感性和定性准确性进行比较研究。 方法 14例肝转移瘤患者均行MSCT三期全肝动态增强扫描，统计各期病灶的检出数、观察病灶增强方式、计算检出敏感性并进行统计学处理。 结果 14例共发现病灶171个，肝动脉期、门动脉期、平衡期的检出敏感性分别为149/171(87.13%)、155/171(90.64%)、151/171(88.30%)。双期合计检出敏感性为94.15%，三期扫描定性准确性为97.66%。 结论 MSCT三期扫描可以充分反映肝脏转移瘤的血供特点，明显提高肝脏转移瘤检出的敏感性和定性准确性(χ 2 =5.963，P<0.05)。

    关键词 肝转移瘤 体层 X线计算机

    The evaluation of multi-slice CT triphase dynamic scan for

    hepatic metastases

    Ma Yaoshan，Ren Xiaosu，Mao Zeqing，et al.

    Department of Radiology，the21th Metallurgy Hospital of Baiyin，Gansu730900.

    【Abstract】 Objective The dual-phase dynamic scan and triphase dynamic scan were performed with MSCT to compare the sensitivity and accuracy detection of hepatic metastases.Methods 14patients with hepatic metastases were performed with MSCT scanner.The number of the detected lesions and insensitivity were statistically calculated and anal-ysed in each phase and the pattern of enhancement was observed.Results The study showed that the sensitivity in de-tecting lesions in arterial ......