超声与16层螺旋CT结合在肝小血管瘤诊断中的应用

Application of ultrasound combined with 16-slice spiral CT in diagnosis of small hepatic hemangioma

目的探讨超声检查结合16层螺旋CT扫描在肝小血管瘤诊断中的价值。方法采用常规B超和16层螺旋CT对20例肝小血管瘤(<30 mm)进行对照分析,所有病例均经3～6个月追踪、回访证实。结果 20例肝小血管瘤患者B超检出率为100%,B超发现病灶不能定性者2例,平扫有3例未发现病灶,增强扫描检出所有病灶并全部给予定性诊断。结论肝小血管瘤大部分表现为B超高信号、CT平扫低密度,超声检出率优于CT平扫,对超声低回声者往往定性困难,而螺旋CT增强扫描可以准确诊断,二者联合运用能提高对肝小血管瘤的诊断准确率。

Objective To investigate the diagnostic value of ultrasound combined with 16-slice spiral CT scan in the small hepatic hemangioma. Methods The conventional B-ultrasound and 16-slice spiral CT were used to compare and analyze 20 patients with small hepatic hemangioma （smaller than 30 mm）, and all the patients were followed up for 3 to 6 months. Results The detection rate of B ultrasound was 100% for the 20 patients with small hepatic hemangioma, but the lesions of two patients could not be diagnosed qualitatively. Plain scan did not find lesions in three patients, but enhanced scan de- tected all the lesions with qualitative diagnosis. Conclusion The hepatic hemangioma mostly shows high signal in B ultra- sound and low density in plain CT scan, with B ultrasound superior to the plain CT scan in the detection rate. It＇s hard to diagnose patients with hypoecho qualitatively, whom, however, can be diagnosed accurately by enhanced spiral CT scan. Ultrasound combined with enhanced spiral CT scan can improve the diagnostic accuracy of the small hepatic hemangioma.