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MRI Temporal Bone With Contrast

MRI of the temporal bone is an imaging procedure to diagnose the facial dysfunction and auditory canal diseases.

Magnetic resonance imaging uses magnetic waves or radio wave to produce a picture of the internal parts of the ear. Due to its high contrast resolution, MRI can effectively study the twisted structure of the inner ear. It can detect diseases such as hearing loss, facial diseases, and many inflammatory diseases. It also helps in evaluating the temporal bone of the patients having audiovestibular dysfunction. This method is superior to computed tomography because of efficiency in producing details and non-usage of the ionizing radiations.

MRI scan is easy to perform and follows these steps:

  • The patient lies down on a moving table.
  • The radiologist injects a contrast dye in the body of the patient.
  • The radiologist may place a frame over that part of the body that is under study.
  • The table moves and enters the MRI scanner where the magnetic waves strike with the patient’s body.
  • A computer takes down the pictures of the body part concerned.
  • After the scan, the table moves out of the field.

MRI scanner can take 15-90 minutes to finish the scan.

The risks associated with this method is mainly due to the magnetic field or the contrast dye used.

  • The strong magnetic field inside the machine may affect any metal inside the body.
  • The contrast may cause many allergies like redness and itching in the skin.
  • The contrast may cause vomiting and diarrhea.
  • The contrast may also cause kidney problems in the patient.

Before the scan, a patient must go through the following preparations:

  • Remove any jewelry and metal piercings in the body.
  • Remove metal implants such as dentures.
  • Avoid consuming food 4 hours before the test.
  • A patient must tell the doctor about pregnancy and certain medicines intakes.

After the treatment, the patient must keep these things in mind:

  • The patient may resume normal activities.
  • Follow the instructions if given by the doctor after the test.

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