摘要
目的 探讨超声双重造影在评估直肠癌术前T分期中的价值.方法 对71例直肠癌患者术前经直肠腔内灌注胃肠超声造影剂和静脉注射微泡造影剂行超声造影（双重造影）检查,观察肿瘤边界、形态以及微循环灌注等情况,根据肿瘤与肠壁层次的关系进行T分期,分别将单纯灌注造影和双重造影分期与术后病理结果对照.结果 术前灌注超声造影T分期总准确率71.8％,其中T1、T2、T3、T4准确率分别为72.7％、50.0％、74.4％、76.9％;双重造影T分期总准确率85.9％,其中T1、T2、T3、T4准确率分别为90.9％、75.0％、87.1％、84.6％.超声双重造影T分期准确性高于灌注超声造影（P＜0.05）.结论 超声双重造影能清晰显示直肠癌的边界、形态和微循环灌注情况,对肿瘤术前T分期有较高的准确性.
Objective To evaluate the preoperative T staging value of rectal carcinoma by using double contrast-enhanced ultrasonography （DCUS）.Methods 71 patients with rectal carcinoma were examined by ultrasound after infusing contrast agent and bolus injection of SonoVue preoperatively.The border,shape and perfusion patterns of the tumor were observed.After surgery,the T staging made by DCUS and perfused contrast-enhanced ultrasonography （PCUS） was compared with final pathologic results respectively.Results The accuracy of PCUS and DCUS in determining the T stage of rectal carcinoma were 71.8%（T1 72.7%%,T250.0%,T374.4%,T476.9%） and 85.9%（T190.9%,T275.0%,T387.1%,T484.6%） respectively.The difference between these two methods was statistically significant （P 〈0.05）.Conclusions DCUS is a new valuable method for T staging of rectal carcinoma with its high accuracy preoperatively.
出处
《中华超声影像学杂志》
CSCD
北大核心
2014年第4期312-315,共4页
Chinese Journal of Ultrasonography
基金
浙江省卫生厅医药卫生科技项目（2012KYB014）
关键词
超声检查
微气泡
直肠肿瘤
肿瘤分期
Ultrasonography
Microbubbles
Rectal neoplasms
Neoplasm staging
