European Journal of Radiology Extra
Volume 60, Issue 2, November 2006, Pages 85-8
Value of multidetector CT in preoperative assessment of ureteropelvic junction obstruction
Anuj Mishraa, , , Jahnavi Narayanaswamy Bhaktarahallia and Ehtuish Faraj Ehtuishb
aDepartment of Radiology, National Organ Transplant Program, Tripoli Central Hospital, P.O. Box 7913, Ainzara, AlFurnaz, Tripoli, Libyan Arab Jamahiriya
Department of Surgery, National Organ Transplant Program, Tripoli Central Hospital, P.O. Box 7913, Ainzara, AlFurnaz, Tripoli, Libyan Arab Jamahiriya
Received 13 July 2006; revised 10 August 2006; accepted 14 August 2006. Available online 14 September 2006
Abstract
Ureteropelvic junction (UPJ) obstruction may be caused by the presence of an aperistaltic dysplastic segment at the UPJ. Besides this intrinsic etiology, extrinsic factors, mainly crossing vessels, may be the causative factor. The controversy regarding the functional significance of vessels crossing at the UPJ is not a new one, though this debate has been resurrected in recent years because of improved detection due to advent of advanced imaging techniques like multidetector row computed tomography (MDCT) and fast magnetic resonance imaging. We present two similar cases where MDCT proved the crossing renal vessel (CRV) to be the cause for UPJ obstruction
Keywords: Ureteropelvic junction; Crossing renal vessel; Multidetector row computed tomograph