angiography is considered an integral step in the routine preoperative workup of aaa and is particularly valuable for the determination of important anatomic details about the aneurysm ( upper and lower extensions , relation to the renal arteries ) , the detection of associated vascular disease ( of renal , visceral , pelvic and peripheral arteries ) , and the demonstration of aberrant renal arteries and collateral visceral circulation .
C0003486
of aaa
C0002940
aneurysm