RT Journal Article SR Electronic T1 Comprehensive Review of Inner Ear Anatomy on Photon-Counting CT JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 862 OP 867 DO 10.3174/ajnr.A8410 VO 46 IS 5 A1 Rao, Dinesh A1 Murray, John V. A1 Agarwal, Amit K. A1 Sandhu, Sukhwinder Johnny A1 Rhyner, Pat A. YR 2025 UL http://www.ajnr.org/content/46/5/862.abstract AB The inner ear contains many fissures and canals that can mimic pathology. Photon-counting CT allows greater spatial and contrast resolution of these structures over traditional energy-integrating CT detectors. Small channels containing nerves, arteries, and normal anatomy such as the cochlear cleft and cochlear and vestibular aqueducts are commonly encountered on temporal bone imaging. The improved visualization of these structures poses challenges for radiologists who are new to photon-counting CT. This article updates the existing temporal bone anatomy literature with a detailed anatomic review of the inner ear and major nerves frequently encountered when reviewing temporal bone imaging.EIDenergy-integrating detectorFAFfissula ante fenestramIACinternal auditory canalPCTphoton-counting CT