Department of Radiology, University of Wisconsin School of Medicine and Public Health, E3/311 Clinical Science Center, 600 Highland Ave, Madison, WI 53792-3252.
AJR Am J Roentgenol. 2021 Dec;217(6):1365-1366. doi: 10.2214/AJR.21.26132. Epub 2021 Jun 23.
Among 109 iohexol-based water-soluble contrast (WSC) challenges performed for suspected small-bowel obstruction, 105 were technically adequate. Among technically adequate studies, colonic contrast (i.e., successful challenge) was seen on 66 abdominal radiographs obtained 8 hours after WSC challenge and 86 abdominal radiographs obtained 24 hours after WSC challenge. Fourteen patients underwent operative management, and 91 underwent nonoperative management (NOM). Successful challenge had a sensitivity of 91.2%, specificity of 78.5%, PPV of 96.5%, NPV of 57.8%, and odds ratio of 38.0 (95% CI, 8.7-165.2) for NOM. Three of 86 patients with successful challenge underwent operative management.
在 109 例疑似小肠梗阻的碘海醇水溶性对比剂（WSC）挑战中，105 例技术上是足够的。在技术上足够的研究中，在 WSC 挑战后 8 小时获得的 66 张腹部 X 光片和 WSC 挑战后 24 小时获得的 86 张腹部 X 光片中观察到结肠对比剂（即成功挑战）。14 名患者接受了手术治疗，91 名患者接受了非手术治疗（NOM）。成功挑战的敏感性为 91.2%，特异性为 78.5%，阳性预测值为 96.5%，阴性预测值为 57.8%，OR 为 38.0（95%CI，8.7-165.2），用于 NOM。在 86 例成功挑战的患者中，有 3 例接受了手术治疗。
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