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首页> 外文期刊>Saudi journal of kidney diseases and transplantation : >The role of B-Mode ultrasonography in the detection of urolithiasis in patients with acute renal colic
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The role of B-Mode ultrasonography in the detection of urolithiasis in patients with acute renal colic

机译：B型超声检查在急性肾绞痛患者尿路结石检测中的作用

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This study was conducted to assess the diagnostic yield of B-Mode Ultrasonogra-phy compared to unenhanced helical CT scan in detecting urinary stones in patients with acute renal colic. This retrospective study comprised of 156 patients who underwent unenhanced uri-nary tract CT scan and ultrasonography for suspicion of urolithiasis. Both techniques were used to determine the presence or absence, site, size, and number of urinary stones, as well as presence of any other intra-abdominal pathology. For statistical analysis, the sensitivity, specificity, predictive values, and diagnostic accuracy of ultrasonography were measured considering unenhanced CT scan as a gold standard. Unpaired two-tailed student's t-test was used for comparison between mean size of true positive, false positive, and false negative stones. There were 68 patients having 115 urinary stones. Ultrasound identified 54 stones, missed 43, and falsely diagnosed 18 stones. The mean size of true positive, false positive, and false negative stones were 4.8 ± 3.3 mm, 6 ± 1.8 mm and 4.18 ± 3 mm, respectively. There were 23 patients with other intra-abdominal patho-logies, equally detected by both techniques. Ultrasound helped in identifying the cause of acute flank pain in 62% of cases. The overall sensitivity, specificity, positive and negative predictive values, and accuracy of ultrasonography in the diagnosis of renal stone disease were 58%, 91%, 79%, 78%, and 78% , respectively. Our study suggests that, despite its limited value in detecting urinary stones, ultrasonography should be performed as an initial assessment in patients with acute flank pain. Unenhanced helical CT should be reserved for patients in whom ultrasonography is inconclusive.
机译：进行这项研究的目的是评估B型超声与未增强螺旋CT扫描相比在诊断急性肾绞痛患者中尿路结石的诊断率。这项回顾性研究包括156例因怀疑尿路结石而接受了未增强的尿路CT扫描和超声检查的患者。两种技术均用于确定尿路结石的存在与否，部位，大小和数量，以及任何其他腹内病理。为了进行统计分析，以未增强的CT扫描为金标准，测量超声的敏感性，特异性，预测值和诊断准确性。未配对的两尾学生t检验用于比较真阳性，假阳性和假阴性结石的平均大小。有68例患者的尿结石为115例。超声检查发现54块结石，漏失43块，并错误地诊断出18块结石。真阳性，假阳性和假阴性结石的平均大小分别为4.8±3.3 mm，6±1.8 mm和4.18±3 mm。两种方法均检测出23例其他腹部内病变。超声有助于确定62％的急性胁腹疼痛的原因。超声检查诊断肾结石的总敏感性，特异性，阳性和阴性预测值和准确性分别为58％，91％，79％，78％和78％。我们的研究表明，尽管在检测尿路结石方面价值有限，但超声检查应作为急性胁腹痛患者的初步评估。对于超声检查尚无定论的患者，应保留未增强的螺旋CT。

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