A CT scan of the temporal bone is ordered to assess structural problems of the ear and surrounding bone: suspected fractures, chronic or recurrent middle-ear infections and cholesteatoma, conductive hearing loss causes (otosclerosis), congenital ear malformations, facial nerve pathway problems, persistent vertigo, or to plan ear or cochlear implant surgery. It shows bone detail and air-cell anatomy to guide diagnosis and surgical decisions.

A CT scan of the temporal bone typically costs about $200–$1,500 in the United States (higher at private hospitals), is free on the UK NHS or around £100–£500 privately, and costs about ₹1,500–₹8,000 in India. Final price depends on location, use of contrast, facility type, and whether you have insurance or public coverage.

A temporal bone CT scan usually takes about 10 to 30 minutes overall. The actual image acquisition is very fast—often less than a minute—but time for registration, positioning, image planning, and any contrast preparation or post-scan review lengthens the visit. For most routine exams expect roughly 10–20 minutes; if contrast or extra imaging is needed, allow up to 30 minutes.

A temporal bone CT evaluates the external and middle ear (external auditory canal, tympanic cavity, ossicles), inner ear (cochlea, vestibule, semicircular canals), internal auditory canal, facial nerve canal, cochlear and vestibular aqueducts, mastoid air cells and antrum, petrous apex, tegmen tympani, carotid canal, jugular bulb, sigmoid sinus, and adjacent temporal bone cortex.

Temporal bone problems can cause ear-related and neurological symptoms: hearing loss or muffled hearing, tinnitus (ringing), ear pain or discharge, and dizziness or vertigo. Facial weakness, numbness, or twitching may occur if the facial nerve is affected. Other signs include balance problems, headache, swelling or tenderness behind the ear, and rarely clear fluid leaking from the ear.

Doctors order a brain CT to quickly evaluate acute neurological problems: detect stroke, brain bleeding, skull fractures after head injury, tumors, hydrocephalus, abscesses or swelling, and major structural causes of sudden headache, confusion or loss of consciousness. CT helps guide urgent treatment decisions, surgical planning, and monitoring of known conditions because it provides fast, detailed images of bone and brain tissue.