PT  - JOURNAL ARTICLE
AU  - Benson, John C.
AU  - Campeau, Norbert G.
AU  - Diehn, Felix E.
AU  - Lane, John I.
AU  - Leng, Shuai
AU  - Moonis, Gul
TI  - Photon-Counting CT in the Head and Neck: Current Applications and Future Prospects
AID  - 10.3174/ajnr.A8265
DP  - 2024 Jul 04
TA  - American Journal of Neuroradiology
4099  - http://www.ajnr.org/content/early/2024/07/04/ajnr.A8265.short
4100  - http://www.ajnr.org/content/early/2024/07/04/ajnr.A8265.full
AB  - Photon-counting detectors (PCDs) represent a major milestone in the evolution of CT imaging. CT scanners using PCD systems have already been shown to generate images with substantially greater spatial resolution, superior iodine contrast-to-noise ratio, and reduced artifact compared with conventional energy-integrating detector–based systems. These benefits can be achieved with considerably decreased radiation dose. Recent studies have focused on the advantages of PCD-CT scanners in numerous anatomic regions, particularly the coronary and cerebral vasculature, pulmonary structures, and musculoskeletal imaging. However, PCD-CT imaging is also anticipated to be a major advantage for head and neck imaging. In this paper, we review current clinical applications of PCD-CT in head and neck imaging, with a focus on the temporal bone, facial bones, and paranasal sinuses; minor arterial vasculature; and the spectral capabilities of PCD systems.CIcochlear implantCNRcontrast-to-noise ratioEIDenergy-integrating detectorPCDphoton-counting detectorSSCDsuperior semicircular canal dehiscenceVMEvirtual monoenergetic