Flow-Pattern Details in an Aneurysm Model Using High-Speed 1000-Frames-per-Second Angiography.

Abstract

Traditional digital subtraction angiography provides rather limited evaluation of contrast flow dynamics when studying and treating intracranial brain aneurysms. A 1000-frames-per-second photon-counting x-ray detector was used to image detailed iodine-contrast flow patterns in an internal carotid artery aneurysm of a 3D-printed vascular phantom. High-speed imaging revealed differences in vortex and inflow patterns with and without a Pipeline Embolization Device flow diverter in more detail and clarity than could be seen in standard pulsed angiography. Improved temporal imaging has the potential to impact the outcomes of endovascular interventions by allowing clinicians to better understand and act on flow dynamics in real-time.

• Authors: J M Krebs, A Shankar, S V Setlur Nagesh, J M Davies, K V Snyder, E I Levy, L N Hopkins, M Mokin, D R Bednarek, A H Siddiqui, S Rudin
• Journal: AJNR. American journal of neuroradiology (AJNR Am J Neuroradiol) Vol. 40 Issue 7 Pg. 1197-1200 (07 2019) ISSN: 1936-959X [Electronic] United States
• PMID: 31171521 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: © 2019 by American Journal of Neuroradiology.

Topics

• Angiography, Digital Subtraction (methods)
• Blood Vessel Prosthesis
• Cerebral Angiography (methods)
• Female
• Humans
• Intracranial Aneurysm (diagnostic imaging)
• Male
• Middle Aged
• Models, Neurological
• Neuroimaging (methods)
• Phantoms, Imaging