title: High resolution multi detector computed tomography of temporal bone: our experience in a tertiary care service hospital.
abstract: High resolution multi detector computed tomography (HRMDCT) is an excellent tool for evaluation of a variety of congenital and acquired conditions affecting the temporal bones. We describe our experience of HRMDCT of temporal bones of 145 patients in a tertiary care and teaching hospital of Armed Forces Medical Services of India over a period of three and half years. Hearing loss was the most frequent indication for HRMDCT and congenital bilateral profound sensorineural hearing loss for evaluation prior to possible cochlear implant formed the single largest group (62, 42%) among all indications for HRMDCT of temporal bones. Major vestibule-cochlear and semicircular canal anomalies were noted in 11 such cases. Seven patients of microtia were studied and all had positive CT scan findings. All patients of vertigo had normal HRCT study. Extent of temporal bone injuries and inflammatory conditions were clearly delineated in all cases. Thinner collimations allowing image reconstructions in planes of anatomical interest with near isotropic resolution has been a major advantage of HRMDCT of temporal bones.
authors.affiliation: Department of Radiodiagnosis and Imaging, 167 Military Hospital, C/O 56 APO, Pathankot, India.
authors.forename: Jyotindu
authors.initials: J
authors.lastname: Debnath
authors.affiliation: Department of Radiodiagnosis, Military Hospital, Mhow, India.
authors.forename: Raju A
authors.initials: RA
authors.lastname: George
authors.affiliation: Department of Radiodiagnosis, Command Hospital (CC), Lucknow, India.
authors.forename: Lovleen
authors.initials: L
authors.lastname: Satija
authors.affiliation: Department of Otolaryngology, Head and Neck Surgery, INHS Asvini Hospital, Mumbai, India.
authors.forename: Dilip
authors.initials: D
authors.lastname: Raghavan
authors.affiliation: Department of Radiodiagnosis, Flt Lt Anil Dhal Fortis Hospital, New Delhi, India.
authors.forename: Ashima
authors.initials: A
authors.lastname: Vaidya
authors.affiliation: Department of Radiodiagnosis, Command Hospital (SC), Pune, India.
authors.forename: Piyush
authors.initials: P
authors.lastname: Joshi
authors.affiliation: Department of Radiodiagnosis and Imaging, 167 Military Hospital, C/O 56 APO, Pathankot, India.
authors.forename: Ankit
authors.initials: A
authors.lastname: Mathur
authors.affiliation: Office of Director General, Armed Forces Medical Services, New Delhi, India.
authors.forename: M D
authors.initials: MD
authors.lastname: Venkatesh
authors.affiliation: Department of Otolaryngology, Head and Neck Surgery, Command Hospital (SC), Pune, India.
authors.forename: P S
authors.initials: PS
authors.lastname: Sukhtankar
authors.affiliation: 159 GH C/O 56 APO, Ferozpur, India.
authors.forename: Jitender
authors.initials: J
authors.lastname: Singh
keywords: High resolution multi detector computed tomography; Multiplanar reconstruction; Temporal bone