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目的探讨彩色多谱勒快闪伪像在提高输尿管中下段结石诊断准确性的应用价值。方法对于临床表现有明显肾绞痛、剧烈放射性痛、腰酸伴有血尿的疑似泌尿系结石患者,使用变频凸阵探头,对输尿管可疑部位进行二维灰阶超声扫描和彩色多谱勒扫描。结果 125例输尿管中下段结石中,二维超声直接探查到的结石病例94例,借助于彩色多谱勒快闪伪像发现的结石病例31例,125例结石病例中共有112例在结石强回声后方出现红蓝相嵌的彩色多谱勒快闪伪像。结论借助于彩色多谱勒快闪伪像,对于提高输尿管中下段结石的检出和定位有很高的实用价值。
Objective To explore the value of color Doppler flash artifact in improving the accuracy of diagnosis of stones in the lower ureter. Methods In patients with suspected urolithiasis with obvious renal colic, severe radiating pain, and backache associated with hematuria, frequency doubling probe was used to scan the suspicious part of ureter with two-dimensional gray-scale ultrasound and color Doppler sonography. Results In the middle and lower ureteral calculi of 125 cases, 94 cases were directly diagnosed by two-dimensional ultrasound and 31 cases were diagnosed by color Doppler flash artifact. A total of 112 cases of calculi in 125 cases were found with strong echo The rear appears red and blue phase embedded color Doppler flash artifact. Conclusion With the help of color Doppler flash artifact, it is of high practical value to improve the detection and location of stones in the lower ureter.