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目的：分析肝脏局灶性结节增生的CT与MRI诊断方法与临床价值。方法选取本院2010年9月~2011年9月收治的经过病理检查证实为肝脏局灶性结节增生的患者共40例，对其进行CT（20例）与MRI（22例）检查，对比CT与MRI的影像学特点，并进行总结。结果42例肝脏局灶性结节增生患者均为单发性结节，病灶直径为2.0cm~6.5cm，平均为3.8cm。 CT检查可见其平扫时呈现低密度，病灶中心存在星芒状瘢痕，增强扫描时显示病灶存在明显强化。 MRI平扫时T1WI呈现较低信号，而T2WI则呈现较高信号，强化扫描时中央瘢痕呈现明显强化。 MRI的定性检测率及假包膜现象率均显著高于 CT，而定位率及供血动脉现象率无显著差异（P>0.05）。结论肝脏局灶性结节增生采用CT或MRI诊断均能够显示出该病的特征，MRI的诊断价值略优于CT诊断。“,”Objective to analysis the method and clinical value of CT and MRI diagnosis on focal nodular hyperplasia of the liver. Methods 42 cases patients with focal nodular hyperplasia of the liver were col ected between 2010 September and 2011 September ,al were pathological y diagnosed. Underwent CT (20 cases)and MRI(20 cases), Analyzed and summarized the the imaging features. Results 42 cases of hepatic focal nodular hyperplasia patients were solitary nodular lesions, diameter ranged 2.0cm from 6.5cm. CT scan showed low density, presence of stel ate scar lesions center, enhanced scan showed obvious enhancement. MRI T1WI showed unenhanced low signal, while T2WI showed high signal. Enhanced scan showed strengthening central scar. The qualitative detection rate and false capsule phenomenon of MR were significantly higher than CT, while positioning rate and feeding arteries showed no significant dif erence phenomenon (P>0.05). Conclusion CT or MRI diagnosis on focal nodular hyperplasia of the liver can show the features of this disease, but MRI diagnostic value is slightly bet er than CT diagnosis.