File:Carotid near-occlusion (Radiopaedia 85304-100887 Axial non-contrast 32).jpg

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Carotid_near-occlusion_(Radiopaedia_85304-100887_Axial_non-contrast_32).jpg ‎(512 × 512 pixels, file size: 39 KB, MIME type: image/jpeg)

Summary:

Description
  • Radiopaedia case ID: 85304
  • Image ID: 54102258
  • Image stack position: 32/73
  • Plane projection: Axial
  • Aux modality: non-contrast
  • Study description: CTA head and neck
  • Study findings: There is a critical stenosis of the proximal cervical right internal carotid artery and small caliber of the distal vessel compared to the contralateral side and to the external carotid artery. The intracranial right internal carotid artery attenuation is less than that of the left, suggesting differential peak contrast bolus arrival. Together, the findings are consistent with right carotid near-occlusion with partial collapse. Thin slice (0.625 mm) axial images through the carotid bifurcations and curved planar reformations (CPR) of the right internal carotid artery (RICA) best demonstrate the finding. The left internal carotid artery origin shows only mild (<50%) stenosis, taking the normal distal vessel diameter as the denominator.
  • Modality: CT
  • System: Vascular
Date Published: 23rd Dec 2020
Source https://radiopaedia.org/cases/carotid-near-occlusion
Author Francis Deng
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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current02:57, 5 July 2021Thumbnail for version as of 02:57, 5 July 2021512 × 512 (39 KB)Fæ (talk | contribs)Radiopaedia project rID:85304 (batch #6190-32 A32)

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