Patlas M, Farkas A, Fisher D, Zaghal I, Hadas-Halpern I
Department of Radiology, Shaare Zedek Medical Center, Jerusalem 91031, Israel.
Br J Radiol. 2001 Oct;74(886):901-4. doi: 10.1259/bjr.74.886.740901.
The aim of our study was to compare the accuracy of non-contrast spiral CT with ultrasound (US) for the diagnosis of ureteral calculi in the evaluation of patients with acute flank pain. 62 consecutive patients with flank pain were examined with both CT and US over a period of 9 months. All patients were prospectively defined as either positive or negative for ureterolithiasis, based on follow-up evaluation. 43 of the 62 patients were confirmed as having ureteral calculi based on stone recovery or urological interventions. US showed 93% sensitivity and 95% specificity in the diagnosis of ureterolithiasis; CT showed 91% and 95%, respectively. Pathology unrelated to urinary stone disease was demonstrated in six patients. Although both modalities were excellent for detecting ureteral stones, consideration of cost and radiation lead us to suggest that US be employed first and CT be reserved for when US is unavailable or non-diagnostic.
我们研究的目的是比较非增强螺旋CT与超声（US）在评估急性腰痛患者时诊断输尿管结石的准确性。在9个月的时间里，对62例连续的腰痛患者进行了CT和US检查。根据随访评估，所有患者均被前瞻性地定义为输尿管结石阳性或阴性。62例患者中有43例根据结石排出或泌尿外科干预确诊为输尿管结石。US在输尿管结石诊断中显示出93%的敏感性和95%的特异性；CT分别显示为91%和95%。6例患者显示出与尿路结石疾病无关的病理情况。尽管两种检查方式在检测输尿管结石方面都非常出色，但考虑到成本和辐射因素，我们建议首先采用US检查，只有在无法进行US检查或US检查无法诊断时才使用CT检查。
