The temporal bones are part of skull/cranium located on each side and base of skull and are lateral to the temporal lobes of the brain.
The temporal bones are part of skull/cranium located on each side and base of skull and are lateral to the temporal lobes of the brain. The bony part of ear forms a tunnel inside the temporal bone. The temporal bone is divided into four parts namely:
1) Squamous part
2) Petrous part
3) Mastoid
4) Tympanic part.
MRI temporal bone is a diagnostic test that uses MRI sequences for the assessment of temporal bones and adjacent structures. It provides higher resolution and better clarity of images which is utilized for the evaluation of underlying pathology.
MRI temporal bone imaging includes:
1) Sagittal T1-weighted images
2) Axial T2-weighted images
3) Diffusion weighted images (DWI)
4) Fluid attenuated inversion recovery images (FLAIR)
What are the uses of MRI Temporal Bone?
MRI Temporal bone is latest and advanced technology which is utilized for delineating the anatomy of temporal bone and associated structures in detail. It is highly sensitive for the identification and diagnosis of various diseases and is usually indicated for the following conditions:
1) Trauma
2) Hemotympanum or bleeding in the membranous labyrinth
3) CSF leak
4) Leakage of perilymph or perilymphatic fistula
5) Pneumolabyrinth
6) Post-traumatic labyrinthitis
7) Cephalocele
8) Meningitis due to pathologies of ear
9) Inflammation of facial nerve or Bell’s palsy
10) Traumatic damage to facial nerve
11) Compression of facial nerve along its course in the inner and middle ear cavity
12) Dehiscence of fallopian canal (canal of facial nerve)
13) Suppurative labyrinthitis which occurs as a complication of complication of AOM (Acute otitis media)
14) Erosion of walls of Labyrinth
15) Subperiosteal abscess
16) Vestibular Schwannoma
17) Recurrent Cholesteatoma
18) Carotid canal fractures
19) Malignant external otitis also known as Necrotizing External otitis
20) Sigmoid sinus thrombosis
21) Petrous apicitis
22) Glomus tumour
23) Assessment of sensorineural hearing loss
24) Congenital anomalies such as congenital cholesteatoma, First Branchial cleft cyst, common cavity malformation etc.
24) Pre and Post-operative assessment of patients such as in case of vestibular schwannomas
25) Metastases in temporal bone.
What are the patient preparations done for MRI Temporal Bone?
Follow the given below steps before going for MRI Temporal bone:
1) Get an appointment- First you need to take an appointment for MRI Temporal bone in a diagnostic center having the facility of MRI Temporal bone.
2) Food and Medications- Follow your daily routine unless specified otherwise by your Clinician. 4-5 hours fasting is usually required if you are planned for contrast-enhanced MRI temporal bone.
3) Allergy- Inform your physician if you have any prior history of allergy or drug reactions.
4) Clothing- Wear comfortable outfits so that you may relax while waiting for the test and your Health care professional can easily perform some general examination if required.
5) Medical reports- Carry your necessary medical and lab reports along with you while going for MRI Temporal bone. These reports may aid in evaluation of your condition.
6) Pregnancy- You must inform your doctor about pregnancy if you are pregnant as certain drugs and tests are better avoided in pregnancy for the safety of your baby.
7) Claustrophobia and anxiety- Some people have fear of close spaces (a condition termed claustrophobia) and some have anxiety problems. If you have these symptoms then inform your Doctor. He may prescribe sedatives or some alternatives to help overcome these, so that you may relax while doing the scan.
8) Implants- MRI utilizes very strong magnetic field and may lead to health hazard and safety issues in case of metallic implants. Hence, it’s important to inform your clinician if you have any kind of implants in your body such as cardiac implants, ossicular prosthesis in middle ear, inner ear implants, metallic dental braces or other metallic, electronic or mechanical implants.
9) Take a company- Get a company of relative or friend to have mental and emotional support and to drive you home.
What is the procedure for MRI Temporal Bone?
Procedure of MRI Temporal bone may include the following steps:
1.Before entering the MRI scanner room, you have to give the written consent.
2.You will be then asked remove all metallic elements such as jewellary, metallic hair clips, bra with metallic underwiring, coins, keys, cards containing metallic strips, wallets, belts, goggles, hearing aids etc.
3) MRI scanner makes a lot of sounds and to overcome this ,you may be given ear plugs or head phones to make you feel comfortable and to protect you from the annoying sounds produced by the MRI machine.
4) If you have claustrophobia or anxiety disorder then you may be prescribed sedatives or some other alternatives to help you relax during scanning.
5) Then you will be asked to change your outfit and wear a gown given to you by the technician assisting the procedure .
6) You will get thoroughly instructed before the scan begins.
7) If contrast MRI is planned to be done then your assisting Clinician will explain about all the possible adverse effects of using contrast agents such as rash, swelling or itching etc. Also, your Doctor need to check your KFT (kidney function test) report to rule out any Renal pathology/disease and to check your GFR. As contrast agent, Gadolinium should not be given to a patient with a GFR (Glomerular filtration rate) less than 30.
8) You will be allowed to lie supine on MRI table and a head coil will be placed around your head. MRI table will slide and place you inside the MRI scanner.
9) You need to remain still during the scan as body movements may interfere with the quality of images produced.
10) Your Radiologist will take several images of Temporal bone and adjacent structures to identify the underlying pathology and at the end, these images will be interpretated for making a definite diagnosis and considering differentials.
11) Once the scan is over, you may be allowed to exit the MRI scanner room. If contrast MRI Temporal bone is being done then you will be asked to sit in the observation room for some time after the scanning get completed , to check for any possible side effect of contrast material being used.
12) Reports can be obtained on the next day. However, you may get the image films on the same day if requested by your Health care provider.
How much time taken to do MRI Temporal Bone?
MRI is an important modality in the evaluation and assessment of pathologies and abnormalities of Temporal bone and the adjacent structures. Temporal bone MRI is used in a variety of clinical settings ranging from hearing loss to trauma including vestibular schwannomas, recurrent cholesteatoma, infectious and inflammatory conditions etc.
MRI has become an essence in Neuroradiology and is crucial for the diagnosis and management of many diseases. Also, ionizing radiation and iodinated contrast is not used in the procedure providing some additional advantages.
It usually takes about 15-20 minutes to perform MRI Temporal bone. But the procedure may lasts longer depending upon the severity of condition and the associated co-morbidities.
What are the charges for MRI Temporal Bone?
MRI Temporal bone prices generally vary with city and location. Different diagnostic and imaging centers charges according to the quality of services they provide and the offers currently availing in them.
MRI Temporal bone is an advanced diagnostic technique that is available at limited diagnostic centers as it demands costly and modern cutting edge technologies to do the test. So, if you don’t want your money to be wasted then choose the best diagnostic center wisely.
Ganesh Diagnostic and Imaging Center is a NABH and NABL accredited diagnostic center located in Rohini, Delhi. We are now offering 50% Discount on MRI Temporal Bone. So, you can get this scan done at just Rs 4000.
We are open 24*7 and 365 days, without any extra charges. You can also get free consultation with our renowned Radiologist, Dr. Ravin Sharma who can also clear your doubts regarding the scan without any extra charges.
Ganesh Diagnostic and Imaging center have many branches in different locations of Delhi. Our center is equipped with the latest technologies and Skilled Radiologists and Pathologists to assure quality services to our patients.
We have the facility of MRI 3 Tesla and 1.5 tesla.
We also provide facility of online reporting, Home blood collection and free Ambulance services in Delhi, NCR.
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