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目的：探讨IVP／CT诊断先天性输尿管畸形的价值。材料与方法：IVP提示重度肾盂积水，或60min后肾收集系统（CS）不显影，显影极谈；或已显影的CS及输尿管变形、移位者立即行CT扫描，计47例。结果：UPJ／UVJ梗阻（31例）。CS囊状扩张（22例）：肾盂内均为水样密度，肾盏内呈水样密度（6例）或形成液体界面（16例）；肾实质为环形或弧形高密度影（22例）。9例UPJ梗阻CS充盈造影剂。5例UVJ梗阻均伴有输尿管扩张可资鉴别。肾实质部分较充满尿液的CS小的多，此为慢性尿路梗阻导致肾盂积水的特征。完全性输尿管重复畸形（16例）。上（半）肾CS：形成液体界面（EUC9例）、充盈造影剂（EVEO6例）或为多囊状扩张（EVEO1例）。上（半）肾输尿管均全程扩张（＞2．0cm），其末端于膀胱内形成压迹样充盈缺损（EUC9例）或于膀胱外异位开口（7例）。结论：诊断先天性输尿管畸形，显示其形态学特征，IVP／CT是一种快速而准确的方法。
Objective: To investigate the value of IVP / CT in the diagnosis of congenital ureteral deformity. Materials and Methods: IVP prompted severe hydronephrosis, or 60min after the renal collecting system (CS) is not developed, the development of very talk; or has been developed CS and ureter deformation, displacement of patients immediately CT scan, 47 cases. Results: UPJ / UVJ obstruction (31 cases). CS cystic dilatation (22 cases): the pelvis were water-like density, calyceal water-like density (6 cases) or the formation of liquid interface (16 cases); renal parenchyma ring or arc-shaped high density ). Nine cases of UPJ obstruction CS filling contrast agent. 5 cases of UVJ obstruction associated with ureteral dilatation can be identified. Some of the renal parenchyma is much smaller than CS filled with urine, which is characteristic of hydronephrosis caused by chronic urinary tract obstruction. Complete ureteral deformity (16 cases). Upper (semi) kidney CS: Formation of fluid interface (EUC9), filling contrast agent (EVEO 6) or multicystic dilation (EVEO1). The upper (half) kidney ureters were all expanded (> 2.0 cm), with the tip forming an indentation in the bladder (EUC 9) or an extrauterine bladder opening (7). Conclusion: Diagnosis of congenital ureter deformity, showing its morphological characteristics, IVP / CT is a fast and accurate method.