目的 比较MRI与CT多期动态增 强扫描诊断肝硬化伴肝癌的临床价值。 方法 回顾性分析我院自2012年1月-2015 年6月收治且经病理组织学确诊为肝硬 化肝癌的34例(44个病灶)患者的临床资 料。所有患者均已接受MRI及CT多期动态 扫描，且影像学资料完整，比较MRI与 CT多期动态增强扫描在肝硬化伴肝癌患 者中的诊断效能。结果 本组34例患者共 44个病灶，CT共确诊病灶39个，诊断准 确率为88.64%；MRI确诊病灶40个，诊断 准确率为90.91%，MRI诊断准确率稍高于 CT，但两者对比差异无统计学意义(P＞ 0.05)。结论 MRI无明显放射损伤，可多 角度、多方位显示病变，扫描时间短， 分辨率高，其对小肝癌诊断敏感度更 高，定性准确度稍高于CT，且对肝癌血 供及包膜强化特点显示较好，可作为肝 硬化伴肝癌的首选诊断方式。

Objective To compare the clinical value of MRI and CT multi-phase dynamic contrast-enhanced scan in the diagnosis of liver cirrhosis with liver cancer. Methods The clinical data of 34 cases (44 lesions) of patients with liver cirrhosis and liver cancer confirmed by histopathology and treated in our hospital from January 2012 to June 2015 were retrospectively analyzed. All patients underwent MRI and CT multi-phase dynamic scan and the imaging data were complete. The diagnostic efficiency of MRI and CT multi-phase dynamic contrast-enhanced scan in patients with liver cirrhosis and liver cancer was compared. Results There were 44 lesions in 34 patients and 39 lesions were diagnosed by CT. The diagnostic accuracy was 88.64%, 40 lesions were diagnosed by MRI and the accuracy of MRI (90.91%) was slightly higher than that of CT but the difference was not statistically significant (P＞0.05). Conclusion MRI has no obvious radiation damage and can display lesions in many angles and multi directions with short scan time and high resolution. It has higher sensity in the diagnosis of small liver cancer and the qualitative accuracy is slightly higher than that of CT. It can better display blood supply and envelope enhancement features of liver cancer. It can be taken as the preferred diagnostic method of liver cirrhosis with liver cancer.