对比超声造影与上腹部增强CT检查对肝血管瘤的诊断效能

目的 探讨超声造影(CEUS)与上腹部增强CT检查对肝血管瘤(HH)的诊断效能.方法 选取2016年10月至2017年12月于我院就诊治疗的78例HH患者作为研究对象,以手术病理学检查结果为标准,比较不同影像学检查对HH的诊断符合率,并分析HH在不同影像学检查中的图像表现.结果 CEUS与增强CT对HH的诊断符合率比较...

Comparison on Diagnostic Efficacy of Contrast-enhanced Ultrasonography and Upper Abdominal Enhanced CT for Hepatic Hemangiomas

Objective To investigate the diagnostic effica cy of contrast-enhanced ultrasonography(CEUS) and upper abdominal enhanced CT for hepatic hemangiomas(HH).Methods 78 patients with HH who were treated in our hospital from October 2016 to December 2017 were selected as subjects.The results of surgical pathology were used as criteria to compare the diagnostic accuracy of different examinations for HH.Imaging features of the HH in imaging examinations were analyzed.Results There was no significant difference between the CEUS and enhanced CT in the diagnose accordance rate for HH(89.74% vs 89.14%)(P>0.05).There was no significant difference between the CEUS and enhanced CT in the positive detection rate of HH with diameter above 4 cm(P>0.05).However,the positive detection rate of CEUS examination for HH with diameter<4 cmHH was significantly higher than that of enhanced CT examination,and the difference was significant(P<0.05).CEUS examination showed obvious enhancement in the arterial phase,in portal vein phase,the center of the lesion showed a centripetal slow packed enhancement,the echo was higher than counterpart of the surrounding.In the delayed phase,it showed a slow packed enhancement from the periphery to the center.CT scan showed that all lesions showed a round or oval low-density shadow with clear boundary,which showed enhancement with ring-shaped or nodular edge in the a rterial phase of ea rly enhancement.The density of some lesions in the portal vein phase was higher than that in the same layer of liver parenchymal tissue,which showed significantly enhancement.The tissue density was significa ntly enhanced,and it showed an equal density or a slightly lower density in the 4 th part of the delayed phase.That was,HH showed enhancement in both CEUS and enhanced CT,and the lesion was peripherally enhanced in ea rly stage,followed by centripetal filling.Conclusion Contrast-enhanced ultrasonography and upper abdominal enhanced CT examination can show HH to some extent,but contrast-enhanced ultrasonography has a higher detection rate of HH with smaller diameter.Therefo re,the com bination of contrast-enhanced ult rasonogra phy and enhanced CT is more beneficial to improve the diagnostic accu ra cy of HH.