CT Scan Temporal bone
INDICATION
- Partial-to-complete opacification of mastoid air cells due to fluid accumulation and thickening of the mucosa that lines the middle ear
- Erosion of mastoid air cell bony septum
- Mastoid cortex destruction and irregularity
- Periosteal thickening or periosteal disruption
- Subperiosteal abscess
- Sub acute and chronic mastoiditis
- Markers of inflammation
- Sclerosis or opacification of mastoid process
- Tympanic membrane changes including thickening, retraction, tympanic membrane perforation, or calcification
- Ossicle erosion or other possible causes for hearing loss
- Determination of cholesteatoma
- Intratemporal complications including petrositis, labyrinthitis, subperiosteal abscess, or labyrinthine fistula
- Intracranial complications including brain abscess or meningitis
- Presence of fibrous tissue
- Tympanosclerosis
- Formation of new bone matter
- Ossicle erosion and displacement
- Extension of cholesteatoma to sinuses
PREPARATION
- CT Scan, MRI, EEG Films/Images with Reports.
- Blood for Serum Creatinine.
- FNAC/Biopsy Test Reports.
- Old Documents.
- Operation Note.
PROTOCOL (SIEMENS)
- Topogram
- Plain_B90s very sharp FR_0.75 mm Inner Ear
- Plain_B31s medium smooth +_0.75 mm Larynx
PLANNING
Picture: CT Scan Temporal Bone Axial Planning.
Picture: CT Scan Temporal Bone Coronal Planning.
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