Radhika B. Dave MD, Presenter: Nothing to Disclose

Dominik Fleischmann MD, Abstract Co-Author: Research support, Siemens AG

1. Arterial phase images are crucial for the evaluation of aneurysm, stenosis, and occlusion in vasculitis. Delayed venous phase images are helpful to evaluate for wall enhancement. 2. Vasculitis demonstrates smoothly tapered luminal narrowing compared to irregular luminal contour seen in stenosis secondary to atherosclerotic disease. 3. Imaging with the extremity in both the adducted and abducted positions can facilitate the diagnosis of thoracic outlet syndrome. 4. Warming of the hand prior to CTA can be helpful to differentiate true arterial stenoses from vasospasm.

Upper extremity CTA has found a niche in the assessment of acute vascular injury. However, its less well known subacute applications involve evaluation of vasculitis, vascular malformations, overuse syndromes, and connective tissue diseases. -Vasculitis: Aneurysms, stenosis, and wall thickening -Arteriovenous malformations: Delineation of arterial and venous supply Evaluation of subfacial and intramuscular components Relationships to neurovascular bundles -Compression syndromes such as thoracic outlet syndrome: Variations of patient positioning to facilitate diagnosis Imaging findings -Connective tissue disorders: Vascular and extravascular imaging findings Imaging techniques to facilitate diagnosis of true arterial stenoses

http://abstract.rsna.org/uploads/2014/14016457/14016457_rmn9.pdf

Dave, R, Fleischmann, D, Upper Extremity CTA: Clinical Applications in the Subacute Setting.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14016457.html