Webmedcentral - Angiology ArticlesThe Angiology articles published by Webmedcentral
http://www.webmedcentral.com
2024-03-28T14:18:44+01:00webmedcentral logo
http://www.webmedcentral.com/
http://www.webmedcentral.com/images/Header_Logo.giftext/html2012-06-05T11:56:28+01:00http://www.webmedcentral.com/Dr. Atanas D HilendarovCollateral Circulation in Chronic Arterial Insufficiency of the Common Iliac Artery - CT Angiographic Findings
http://www.webmedcentral.com/article_view/3426
Background: The collateral circulation in aortoiliac occlusive disease involves multiple pathways and the dominant type is determined by the level of occlusion. The aim of this report is to assess the collateral circulation in patients with chronic occlusive disease of the iliac arteries using computed tomography angiography and post-processing image reconstruction.Methods: A case of an 80-year-old patient with occlusion of the right common iliac artery is presented. Using computed tomography (CT) angiography were evaluated arterial collaterals, providing blood flow to the right lower limb. The post-processing reconstruction of the image allowed additional spatial visualization of some of the collaterals.Results: It was found that two types of anastomoses - visceral and parietal intersystemic are committed to overcome the gradually occurred blockage of the right common iliac artery. The first type was presented with the anastomosis of the ipsilateral superior epigastric artery and inferior epigastric artery, as well as the communication of the latter through pubic branch with the obturator artery. The second type was realized through the visceral branches: superior rectal artery, left middle and inferior rectal arteries - right middle and inferior rectal arteries (pararectal); left vesical arteries - right vesical arteries (paravesical).Conclusions: Complementation of CT angiography with post-processing image reconstruction improves visualization and analysis of the collateral pathways in chronic occlusive disease of the iliac arteries, which is necessary for adequate preoperative evaluation of the dominant of collateral circulation.