Jung Sung Ii, Kim Young Jun, Park Hee Sun, Jeon Hae Jeong, Park Hyoung Keun, Paick Sung Hyun, Kim Hyeong Gon, Lho Yong Soo
Department of Radiology, Konkuk University Medical Center, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Korea.
J Comput Assist Tomogr. 2010 Nov-Dec;34(6):879-82. doi: 10.1097/RCT.0b013e3181ec7e07.
To assess the sensitivity of digital abdominal radiography in the detection of ureteral stones by stone size and location.
We retrospectively reviewed the digital abdominal radiography of 163 patients for the detection of ureteral stones. Each ureteral stone was confirmed by unenhanced computed tomography (CT) in the emergency department between January and December, 2009. Stone location was defined as proximal or distal by the level where the ureter crossed anterior to iliac vessels, and the stone size was defined as small if smaller than 5 mm and large if larger than 5 mm on unenhanced CT. The interpretation of digital abdominal radiography was classified as visible, invisible, or equivocal.
In 163 ureteral stones, 77 stones (47.2%) were in the proximal ureter and 86 stones (52.8%) were in the distal ureter. The mean (SD) size of the ureteral stones was 3.4 (1.7) mm (range, 1-9 mm). Overall sensitivity of digital radiography for ureteral stones was 29.4%. The sensitivity of digital radiography for the proximal ureteral stones was 37.7% and that for the distal ureteral stones was 22.1% (P < 0.05). The sensitivity of digital radiography for small ureteral stones was 23.6% and that for large ureteral stones was 50.0% (P < 0.05). As a group, the sensitivity of digital radiography for large proximal ureteral stones was the highest sensitivity-72.2%-in all groups (P < 0.05).
Digital abdominal radiography is useful in detecting large proximal ureteral stones.
通过结石大小和位置评估数字化腹部X线摄影在输尿管结石检测中的敏感性。
我们回顾性分析了163例患者的数字化腹部X线摄影以检测输尿管结石。2009年1月至12月期间，急诊科通过非增强计算机断层扫描（CT）对每例输尿管结石进行了确诊。结石位置根据输尿管在髂血管前方交叉的水平定义为近端或远端，在非增强CT上，结石大小若小于5mm定义为小结石，大于5mm则定义为大结石。数字化腹部X线摄影的解读分为可见、不可见或不明确。
163例输尿管结石中，77例（47.2%）位于输尿管近端，86例（52.8%）位于输尿管远端。输尿管结石的平均（标准差）大小为3.4（1.7）mm（范围1 - 9mm）。数字化X线摄影对输尿管结石的总体敏感性为29.4%。对近端输尿管结石的敏感性为37.7%，对远端输尿管结石的敏感性为22.1%（P < 0.05）。对小输尿管结石的敏感性为23.6%，对大输尿管结石的敏感性为50.0%（P < 0.05）。总体而言，数字化X线摄影对大的近端输尿管结石的敏感性在所有组中最高，为72.2%（P < 0.05）。
数字化腹部X线摄影在检测大的近端输尿管结石方面有用。
