title: Common and rare collateral pathways in aortoiliac occlusive disease: a pictorial essay.
abstract: OBJECTIVE
  The development of collateral pathways for arterial blood flow is common in the presence of atherosclerotic occlusive disease of the abdominal aorta and iliac arteries. The collateral pathways are divided into systemic-systemic and systemic-visceral pathways. MDCT is commonly used to evaluate aortic stenosis and the resulting collateral pathways.
  
  
  CONCLUSIONS
  Common and rare arterial collateral pathways are reviewed by 3D volume-rendered CT images. Visceral and lower extremity arterial embryology is reviewed.
authors.affiliation: Department of Radiology, University of Texas Health Science Center in San Antonio, 7703 Floyd Curl Dr, MC 7800, San Antonio, TX78229, USA. hardmanr@uthscsa.edu
authors.forename: Rulon L
authors.initials: RL
authors.lastname: Hardman
authors.forename: Jorge E
authors.initials: JE
authors.lastname: Lopera
authors.forename: Rex A
authors.initials: RA
authors.lastname: Cardan
authors.forename: Clayton K
authors.initials: CK
authors.lastname: Trimmer
authors.forename: Shellie C
authors.initials: SC
authors.lastname: Josephs
mesh_terms: D000792:Angiography / Q000379:methods*; D001012:Aorta, Abdominal / Q000000981:diagnostic imaging*; D001018:Aortic Diseases / Q000000981:diagnostic imaging*; D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging*; D050197:Atherosclerosis / Q000000981:diagnostic imaging*; D003097:Collateral Circulation; D006801:Humans; D007083:Iliac Artery / Q000000981:diagnostic imaging*; D011857:Radiographic Image Interpretation, Computer-Assisted; D014057:Tomography, X-Ray Computed / Q000379:methods*