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目的:对比分析多排螺旋CT(MSCT)和常见影像学检查对输尿管小结石的诊断效能,评价MSCT和常规影像学检查的可靠性。方法:共收集2004-2006年间78例输尿管小结石(直径<5.0mm)病例,均以开放性或腹腔镜手术证实。将手术结果同MSCT、腹部尿路平片(KUB)、B超等常见影像学检查结果进行对比分析,来判断三种影像学检查的可靠性。本组有69例行KUB检查,78例均行腹部超声(BUS)检查,57例进行MSCT检查。结果:(1)MSCT、KUB、BUS三种检查在输尿管小结石的诊断符合率分别为98.2%、53.9%、67.8%;(2)KUB+BUS在输尿管小结石的诊断符合率为74.0%,低于MSCT的98.2%(P<0.05)。结论:MSCT在输尿管小结石的诊断上优于KUB、B超及KUB+BUS,是诊断输尿管结石最可靠的检查方法。
OBJECTIVE: To compare the diagnostic efficacy of multi-slice spiral CT (MSCT) and common imaging in small ureteral calculi and evaluate the reliability of MSCT and routine imaging. Methods: A total of 78 cases of small ureteral stones (diameter <5.0 mm) were collected from 2004 to 2006, all of which were confirmed by open or laparoscopic surgery. The surgical results and MSCT, abdominal urinary tract plain film (KUB), B ultrasound and other common imaging findings were compared to determine the reliability of the three imaging studies. The group of 69 patients underwent KUB examination, 78 patients underwent abdominal ultrasound (BUS) examination, 57 patients underwent MSCT. Results: (1) The coincidence rates of MSCT, KUB and BUS in diagnosis of small ureteral calculi were 98.2%, 53.9% and 67.8% respectively; (2) The diagnostic accuracy of KUB + BUS in ureteral calculi was 74.0% 98.2% below MSCT (P <0.05). Conclusion: MSCT is superior to KUB, B-mode and KUB + BUS in the diagnosis of small ureteral calculi, which is the most reliable method for the diagnosis of ureteral calculi.