Ureteropelvic junction obstruction: does CT angiography allow better selection of therapeutic modalities and better patient outcome?

Purpose: To determine whether preoperative helical CT angiography (CTA) with three-dimensional (3D) reconstructed images improves outcome in patients with ureteropelvic junction obstruction (UPJO) by identifying crossing vessels that may lead to surgical failure.

Patients And Methods: Twenty-five patients with UPJO underwent imaging with CTA to identify crossing vessels. Patients with crossing vessels or severe hydronephrosis underwent laparoscopic dismembered pyeloplasty.