What is HRCT temporal bone test?
HRCT temporal bone axial scan is a high resolution computed tomography (HRCT) imaging test which helps to visualise specially the soft tissues and bones of the temporal region of the brain (middle ear).
Why use HRCT temporal bone?
In temporal bone it precisely delineates the bony structures as well as the soft tissue component. Temporal bone is very difficult to access by clinical examination and normal radiograph. HRCT of temporal bone gives a precise window for evaluation of temporal bone involvement in different conditions.
What is temporal bone anatomy?
The temporal bone is a thick, hard bone that forms part of the side and base of the skull. This bone protects nerves and structures in the ear that control hearing and balance.
How long does a CT scan of temporal bone take?
approximately 30 minutes
This procedure usually takes approximately 30 minutes.
How long does a temporal bone CT take?
Depending on the reason for your test, the procedure can take anywhere from 10 to 30 minutes. You will receive the results of the exam from your doctor.
Does the temporal bone have a sinus?
Explanation: There are four paranasal sinuses in the head: the frontal, maxillary, sphenoid, and ethmoid sinuses. They function in lightening the skull, and creating mucous for the nasal cavity. The temporal bone does not contain a sinus.
Can a CT scan detect inner ear problems?
A CT scan is an X-ray technique that is best for studying bony structures. The inner ear is inside of the skull’s temporal bone on each side. These scans are often used to look for abnormalities around the inner ear, such as fractures or areas with thinning bone.
What does CT of temporal bone look for?
Temporal bone CT is a limited kind of head CT that focuses on the lower part of the skull and the surrounding soft tissues, and is often used in patients with hearing loss, chronic ear infections, and middle and inner ear diseases.
Is HRCT and CT scan same?
In HRCT, the x rays are collimated to a much thinner slice width than in conventional CT scans, typically less than 1.5 mm compared to 5–10 mm. If the images are taken contiguously, without any gap, the effective dose can be higher than for conventional CT scans.