Fig 1.
Patient 1. A, Preoperative computed tomography (CT) venogram (sagittal view) demonstrates compression of the left renal vein (LRV; arrow) in the aortomesenteric window (AMW) and persistent narrowing of the AMW several centimeters distal to the superior mesenteric artery (SMA) origin with consequent risk of compression of the distally transposed LRV. B, Intravascular ultrasound (IVUS) demonstrates LRV compression (arrow) intraoperatively. C, IVUS demonstrates LRV compression relief (arrow) after lifting of the small bowel (SMA). D, IVUS demonstrates a widely patent LRV stent intraoperatively (arrow). E, Intraoperative picture demonstrates the transposed, patched LRV with intraluminal stent. F, Postoperative CT venogram demonstrates a widely patent LRV stent.