应用三维能量超声及超声造影对直肠癌术前分期的检测价值

The Diagnosis Value of Three-dimensional Color Power Angiography and Contrast-enhanced Untrasonographic in the Preoperative Staging of Rectal Carcinoma

目的探讨三维超声及超声造影在直肠癌术前TNM分期中的应用价值。方法术前对39例直肠癌患者进行三维超声检查,8例直肠癌患者进行超声造影检查。术后采用TNM分期标准进行分期,并与超声血流动力学数据进行对照。结果 Ⅰ期、Ⅱ期以Ⅱ级血流为主,Ⅲ期、Ⅳ期直肠癌以Ⅲ级血流为主。Ⅰ期、Ⅱ期和Ⅲ期、Ⅳ期之间三维血管指数不同,有统计学差异(P<0.05)。超声造影所得时间-强度曲线,Ⅲ期、Ⅳ期直肠癌曲线图显示上升支陡直,下降支平缓。结论 经直肠3D-CPA检测直肠癌肿块血流分级及VI指数可作为直肠癌病理分期超声诊断的参考。应用超声造影技术可以为直肠癌术前分期诊断提供更加丰富的信息。

Objective To explore the value of three-dimensional color power angiography and contrast-enhanced untrasonographic in preoperative staging in rectal carcinoma.Methods Totally 39 patients with rectal carcinoma were examined preoperatively with three-dimensional color power angiography（3D-CPA） and 8 of them also were examined with contrast-enhanced untrasonographic.The rectal carcinoma used the TNM staging system after surgery.The ultrasound hemodynamic changes were analyzed and compared with those of postoperative pathologic staging.Results StageⅠand Ⅱare predominent with blood flow of grade Ⅱ.Stage Ⅲ and Ⅳ of rectal carcinoma are predominent with blood flow of grade Ⅲ.GradeⅠ,Ⅱ,Ⅲand Ⅳ are of different blood vessels index（P0.05）.After the use of contrast agents,the shape of the curve in stage Ⅲand Ⅳrectal carcinoma was characterized as ascend rapidly and drop slowly than that of stageⅠand Ⅱ.Conclusion Transrectal 3D-CPA classification and detection of colorectal tumor blood vessels per unit volume within the article number that can be used as preoperative staging of rectal ultrasound for the diagnosis.Contrast enhanced ultrasonography and provided more extensive information for the preoperative staging of rectal carcinoma diagnosis.