PT - JOURNAL ARTICLE AU - Risch, Franka AU - Berlis, Ansgar AU - Kroencke, Thomas AU - Schwarz, Florian AU - Maurer, Christoph J. TI - Discrimination of Hemorrhage and Contrast Media in a Head Phantom on Photon-Counting Detector CT Data AID - 10.3174/ajnr.A8093 DP - 2024 Feb 01 TA - American Journal of Neuroradiology PG - 183--187 VI - 45 IP - 2 4099 - http://www.ajnr.org/content/45/2/183.short 4100 - http://www.ajnr.org/content/45/2/183.full SO - Am. J. Neuroradiol.2024 Feb 01; 45 AB - In this anthropomorphic head phantom study, samples containing blood and contrast agent with concentrations ranging from 0 to 6 mg iodine per milliliter and another set of samples without blood for reference were scanned with a photon-counting detector CT using a standard cranial protocol. It was demonstrated that photon-counting detector CT can reliably distinguish hemorrhage and contrast media, including density determination of the latter. The technology promises to add value in several neuroimaging applications.CMcontrast mediaME70virtual monoenergetic image at 70 keVPCDphoton-counting detectorVNCvirtual noncontrast