肝脏局灶性病变超声造影与增强CT动脉期增强特征的对比研究  

The Differentiation Characterization of Arterial Phase Perfusion of Focal Liver Lesions on Contrast-enhanced Ultrasound and Contrast-enhanced CT

作　　者：乔英艳[1] 王兴华[1] 马霞[1] 雷成功[1] 王新文[2] 赵曼曼[1] 姬军军[1] 

机构地区：[1]山西医科大学第二医院超声科,太原市030001 [2]山西医科大学第二医院影像科,太原市030001

出　　处：《中国超声医学杂志》2013年第1期48-50,共3页Chinese Journal of Ultrasound in Medicine

摘　　要：目的比较肝脏局灶性病变超声造影和增强CT动脉期增强特征的不同。方法对29例共38个肝脏局灶性病变行超声造影及增强CT检查,观察2种检查方法的增强特征,重点观察动脉早期(0～25s)增强特征。根据超声造影与增强CT动脉期肝脏局灶性病变的增强类型,将病灶的增强方式分为0～Ⅲ级:0级:无增强;Ⅰ级:周边增强或中心点状强化;Ⅱ级:轮辐状增强、蜂窝样增强或不均匀性增强;Ⅲ级:整体增强。结果 (1)超声造影后,38个病变中,始增强时间<25 s的病变占36个(94.74%),峰值时间<25 s的病变占29个(76.32%)。(2)超声造影增强为Ⅱ～Ⅲ级病灶共25个(65.79%),增强CT增强为Ⅱ～Ⅲ级病灶共13个(34.21%)。两者之间比较差异有统计学意义(P<0.05)。结论与增强CT相比,超声造影对动脉期出现较早(<25 s)的肝脏局灶性病变有重要的诊断价值。Objective To compare the enhanced features of the focal liver lesions in the arterial phase on contrast enhanced ultrasound （CEUS） and contrasvenhanced CT （CECT）. Methods 29 patients （38 lesions） with focal liver lesions （FLL） were examined with CEUS and CECT. The enhancement level, enhancement modality and the changes in different phases were observed, and the enhancement time （arrive time, peak time） and enhanced features of the early arterial phase（0-25 s） were focused on. According to the different enhanced patterns of the FLL on the CEUS and CECT, the imaging features were compared and classified into four grades separately（0-Ⅲ grades）： 0 grade, non-enhancing, I grade, peripheral enhancement or a little central enhancement, Ⅱ grade, spoke-wheel enhancement, honey comb-like enhancement or heterogeneous enhancement, Ⅲ grade, complete enhancement. Results （1） On CEUS, there were 36 lesions（94.73%） out of 38 lesions whose arriving time was less than 25 s, and there were 29 le- sions（76. 320/oo） whose peaking time was less than 25 s. （2）The number of Ⅱ -Ⅲ grade flow lesions was 25 （65.79%） on CEUS, and 13 lesions （34.21%） on CECT. In statistically, the comparison between the two examinations was significantly difference（P〉0.05）. Conclusions Compared with CECT, CEUS plays an important role in diagnosing focal liver lesions which enhanced early in the arterial phase（〈25 s）.

关 键 词：超声检查 16层螺旋CT 造影剂 肝脏局灶性病变 

分 类 号：R445.1[医药卫生—影像医学与核医学] R816.5[医药卫生—诊断学] R575[医药卫生—临床医学]