MRI TMJ
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When is an MRI of the temporomandibular joints required?
- Inflammatory processes - in particular, arthritis, causing pain, swelling and redness in the joint area
- Degenerative-dystrophic changes. These include arthrosis (in particular, deforming osteoarthritis, characterized by gradual wear of the articular surfaces)
- Ankylosis. The disease is a fusion of the bones of the joint
- Joint dysfunction. The study is relevant if there are problems with opening the mouth, which is accompanied by clicking and spasms of the masticatory muscles
- Injuries. This category should include sprains, bruises or other injuries caused by external influences
- Neoplasms. The study is carried out if the presence of benign or malignant tumors is suspected
When research is prohibited
MRI is not recommended if the patient has medical devices (pacemakers, neurostimulators, cochlear implants and defibrillators) in the patient's body. This is due to the fact that the magnetic field of the device can affect their functioning.
In addition, the study is not prescribed in the first trimester of pregnancy. This is because exposure to magnetic fields can be potentially harmful to fetal development.
MRI of the jaw joint with contrast
MRI of the temporomandibular joint with contrast significantly improves image quality. This ensures a more accurate diagnosis. In particular, this method allows you to detect small tumors and subtle inflammatory processes.
It involves the injection of a gadolinium-based contrast agent into a vein. The contrast travels through the bloodstream, enhancing signals from different tissues and making them easier to visualize.
How to prepare for an MRI of the temporomandibular joint
MRI of the jaw does not require special preparatory steps. The main thing that is required of the patient is to remain motionless during the process. This will ensure you get clear images.
In addition, before performing an MRI it is necessary:
- Remove jewelry and accessories
- Make sure that there are no metal elements in the clothing, such as fasteners or buttons
- Leave all metal and electronic objects in the camera
These precautions are because the magnetic fields used in MRI cause metal objects to become very hot, which is potentially dangerous. In addition, metal can damage equipment.
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What does MRI of the maxillofacial joint show?
MRI of the temporomandibular joint provides detailed images of cartilage, meniscus, ligaments, tendons and muscles.
Using this technology, a specialist detects various pathological changes, including inflammatory processes and neoplasms.