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目的：应用多层螺旋CT进行平扫、动脉期、门脉期全肝动态增强扫描,评价其诊断转移瘤的价值。材料和方法：30例肝转移瘤患者均行多层螺旋CT平扫及双期全肝动态增强扫描,统计各期检出率,观察各期病灶的CT表现。结果：30例患者共发现病灶218个,平扫、动脉期及门脉期的病灶检出率分别为148/218(67．9%)、142/218(65．1%)、212/218(97．3%)。结论：双期螺旋CT在一定程度上利于肝转移瘤的检出和显示其特征,反映病灶的血供,有利于诊断和鉴别诊断。
OBJECTIVE: To evaluate the diagnostic value of multi-slice spiral CT in the diagnosis of metastatic tumors by multi-slice spiral CT in plain, arterial and portal venous phase. MATERIALS AND METHODS: Thirty patients with liver metastases underwent multi-slice spiral CT scan and double-phase whole liver dynamic contrast-enhanced scan. The detection rate of each period was observed and the CT findings of each stage were observed. Results: A total of 218 lesions were found in 30 patients. The detection rates of lesions were 148/218 (67.9%), 142/218 (65.1%), 212/218 (97.3%). Conclusion: The double-phase spiral computed tomography (CT) is beneficial to the detection and display of liver metastases to a certain extent, reflecting the blood supply of the lesion and is helpful for the diagnosis and differential diagnosis.