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Updated: Feb 5, 2026

Retrospective Cardiac Gating with A Prototype Small-Animal X-ray Computed Tomograph
Published on: February 21, 2025
Intraarticular extravasation, an unusual complication of computed tomographic angiography performed with intraosseous
Michael Winkler1,2, Mohamed Issa1, Conor Lowry1
1Department of Radiology, University of Kentucky, Lexington, KY, USA.
Abstract:
Off label use of intraosseous needles (IONs) for contrast media (CM) injection during computed tomographic angiography (CTA) has been reported in small case series and isolated case reports. Presently, complications specific to this novel indication are essentially unknown. In this communication, we report an extravasation of CM from the intramedullary space of the humerus into the glenohumeral joint space during an ION injection of CM during a CTA of the head, neck, and chest. Although clinically insignificant in this case, a more severe intraarticular extravasation could have had both short or long term adverse sequelae. Practitioners of CTA should be aware of this potential complication.
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