File:Arc of Riolan (Radiopaedia 36156).jpg

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Arc_of_Riolan_(Radiopaedia_36156).jpg ‎(534 × 530 pixels, file size: 57 KB, MIME type: image/jpeg)

Summary:

Description
  • Radiopaedia case ID: 36156
  • Study ID: 37711
  • Image ID: 17240
  • Plane projection: None
  • Modality: DSA (angiography)
  • System: Vascular
  • Findings: This patient had severe proximal SMA stenosis.  An enlarged Arc of Riolan (red arrow) can be seen connecting the proximal IMA (not opacified in this image) with the proximal SMA (poorly opacified due to the stenosis). During the angiographic run, the Arc of Riolan filled retrogradely from the IMA to the SMA to provide collateral flow, illustrating the hemodynamic significance of the SMA stenosis.
  • Study findings: This patient had severe proximal SMA stenosis. An enlarged Arc of Riolan (red arrow) can be seen connecting the proximal IMA (not opacified in this image) with the proximal SMA (poorly opacified due to the stenosis). During the angiographic run, the Arc of Riolan filled retrogradely from the IMA to the SMA to provide collateral flow, illustrating the hemodynamic significance of the SMA stenosis.
  • Author location: Minneapolis, United States
Date 15 May 2015
Source Arc of Riolan
Author Donna D'Souza
Permission
(Permission-reusing-text)		 http://creativecommons.org/licenses/by-nc-sa/3.0/

Licensing:

Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)

This file is ineligible for copyright and therefore in the public domain, because it is a technical image created as part of a standard medical diagnostic procedure. No creative element rising above the threshold of originality was involved in its production.

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Date/TimeThumbnailDimensionsUserComment
current23:40, 18 March 2021Thumbnail for version as of 23:40, 18 March 2021534 × 530 (57 KB)Fæ (talk | contribs)Radiopaedia project rID:36156 (batch #2816)

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