目的超声造影结合CT在肝局灶 性结节增生(FNH)诊断中的应用价值。方 法 选择2016年1月到2018年1月到医院就 诊FNH患者100例，所有患者均进行CT及超 声造影检测。分析CT与超声造影表现特 点，比较CT、超声造影、CT联合超声造影 检测FNH准确率。结果 FNH患者CT表现为 动脉期均匀强化，超声造影表现为动脉期 快速、均匀高增强；CT检测出80个病灶， 平扫显示44个病灶为低密度，在动脉期明 显强化，在静脉期及延迟期，分别有24及 26个病灶密度降低为等密度；超声造影检 测出85个病灶，动脉期可见83个高回声病 灶，静脉期及延迟期分别有16及50个病灶 降低为等回声；CT结合超声造影检测FNH 患者检出率明显高于单独检测，差异有统 计学意义(P＜0.05)。结论 超声造影结合 CT诊断FNH检出符合率较单独检查更高。

Objective To evaluate the application value of contrast-enhanced ultrasound combined with CT in the diagnosis of focal nodular hyperplasia (FNH). Methods A total of 100 cases of patients with FNH who were enrolled in the hospital from January 2016 to January 2018 were selected for the study. All patients were given CT and contrast-enhanced ultrasound. The findings features of CT and contrast-enhanced ultrasound were analyzed. CT and contrast-enhanced ultrasonography were analyzed to compare the accuracy of CT, contrast-enhanced ultrasonography and CT combined with contrast-enhanced ultrasonography in detecting FNH. Results The CT findings of FNH showed that the lesions were evenly enhanced in arterial phase, and the findings of contrast-enhanced ultrasound showed lesions were with rapid and uniform and high enhancement in arterial phase. A total of 80 lesions were detected by CT, and the plain scan showed that 44 lesions were low-density and significantly enhanced in arterial phase, in venous phase and delayed phase, 24 and 26 lesions decreased to iso-density, respectively. 85 lesions were detected by contrast-enhanced ultrasound, and 83 lesions were hyperechoic in arterial phase, and 16 lesions in venous phase and 50 lesions in delayed phase were reduced to equal echo. The detection rate of FNH patients by CT combined with contrast-enhanced ultrasound was significantly higher than that by single detection(P<0.05). Conclusion Contrast-enhanced ultrasound combined with CT has a high detection rate in the diagnosis of FNH.