Smith R C, Rosenfield A T, Choe K A, Essenmacher K R, Verga M, Glickman M G, Lange R C
Department of Diagnostic Imaging, Yale University School of Medicine, New Haven, CT 06510.
Radiology. 1995 Mar;194(3):789-94. doi: 10.1148/radiology.194.3.7862980.
To compare non-contrast-enhanced computed tomography (CT) and intravenous urography (IVU) in the evaluation of patients who present with acute flank pain and in whom ureteric obstruction is suspected.
The findings at non-contrast-enhanced CT and IVU in 20 patients with acute flank pain were compared for the presence or absence of ureteric obstruction and delineation of ureteric stones.
Twelve of the 20 patients had non-contrast-enhanced CT and IVU findings consistent with ureteric obstruction. Of these 12 patients, five had a ureteric stone that was demonstrated on both non-contrast-enhanced CT scans and IVU radiographs, six had a stone that was depicted on non-contrast-enhanced CT scans only, and in one patient a stone could not be delineated definitively on either non-contrast-enhanced CT scans or IVU radiographs. Eight patients had findings at non-contrast-enhanced CT and IVU consistent with the absence of obstruction.
Non-contrast-enhanced CT is more effective than IVU in precisely identifying ureteric stones and is equally effective as IVU in the determination of the presence or absence of ureteric obstruction.
比较非增强计算机断层扫描（CT）和静脉肾盂造影（IVU）在评估出现急性腰痛且怀疑有输尿管梗阻患者中的作用。
比较20例急性腰痛患者的非增强CT和IVU检查结果，以确定是否存在输尿管梗阻以及输尿管结石的情况。
20例患者中有12例的非增强CT和IVU检查结果显示存在输尿管梗阻。在这12例患者中，5例患者的输尿管结石在非增强CT扫描和IVU造影照片上均显示，6例患者的结石仅在非增强CT扫描上显示，1例患者的结石在非增强CT扫描或IVU造影照片上均无法明确显示。8例患者的非增强CT和IVU检查结果显示不存在梗阻。
非增强CT在精确识别输尿管结石方面比IVU更有效，在确定输尿管梗阻是否存在方面与IVU同样有效。
