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Paranasal sinus (visceral cranium) MRI examination

The paranasal sinus MRI scan is a non-invasive form of examination that can detect lesions in the paranasal sinuses without harmful radiation. It can be used to detect inflammation of the mucous membranes, and to diagnose polyps and malignancies.

MRI is an imaging diagnostic procedure that uses magnetic field to take detailed images of the human body.

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The magnetic field generated by the device converts the energy changes in the body into a high-resolution, three-dimensional image by a high-performance computer. At Medicover Diagnostic Center, we use equipment that works with a closed but extremely short tube, it is10 centimetres wider than average, its diameter is 70 cm, thus helping reduce the feeling of confinement.

What types of diseases does the paranasal sinus (visceral cranium) MRI examination help diagnose?

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Inflammation, tumours, and other soft tissue lesions can be diagnosed with the paranasal sinus MRI examination. Your doctor may order an examination if you have the following conditions.

  • prolonged sinusitis
  • sinus tumour
  • cyst
  • polyp

In case of which symptoms is it recommended to have the examination performed?

Your doctor may consider a scan if you complain of persistent nasal congestion, frequent nosebleeds, eyeball dislocation, or facial pain.

How to prepare for the paranasal sinus (visceral cranium) MRI examination?

In all cases, it is recommended that the treating physician be consulted for details prior to the MRI examination, although the native examination does not require special preparation. On the other hand, it is important to know that due to the strong magnetic field, it is forbidden to bring any metal, device or object containing metal into the examination room! This applies to jewellery, piercings in the body, and some makeup products may contain a substance that affects the success of the test. Prior to an examination with contrast agent, specialist consultation is essential. Kidney function laboratory results showing creatinine and urea values ​​are also required to perform this type of scan. In the case of an examination with contrast agent, you should not eat for 6 hours beforehand.

How is the paranasal sinus (visceral cranium) MRI performed?

Following pre-MRI orientation, the operator will escort you into the MRI examination room and then ask you to be seated on the examination bed. The operator adjusts the correct body position, places the coils required for the scan, and then the examination bed inserts you into the magnetic tube. It is important to remain still during the scan, you can only change your body position on the instructions of the operator. The examination takes an average of 30 minutes, while you can communicate with our colleague continuously through the built-in microphone and speaker. The machine makes a loud, rattling sound that can be reduced with ear protection.

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When is it not possible to perform a paranasal sinus (visceral cranium) MRI examination?

  • The examination cannot be performed in the first trimester of pregnancy.
  • The examination cannot be performed if you do not have an MRI compatible metal, implant, prosthesis (pacemaker), orthopaedic metal (screw, plate, nail, wire), implanted joint prosthesis, prosthetic limb, implanted defibrillator, neurostimulator, implanted drug dispenser, vascular implants (e.g. clips, vascular occlusion devices), ear implants, metal foreign body (e.g. bullet, splinter, other electronic implants). Therefore, in case of an implant, implanted metal, prosthesis, please bring a written certificate of its compatibility with MRI examination (certified by the implanting specialist, institution) for the examination itself, which clearly states: the suitability to enter the MRI examination room, to perform the MRI examination and marking the maximum magnetic field strength (1.5 Tesla, 3 Tesla) for the device or implant. Inform the person performing the examination about the implant beforehand.
  • If the subject weighs more than 200 kilograms, but it also depends on the circumference of the abdomen.
  • In case of a scan with contrast agent, if the eGFR of the kidney function is below 45 ml/min, the test is not performed.

What to expect after the examination?

The finding in itself is not a diagnosis. After the scan, please always consult a specialist with the result.

The contrast agent used for MRI examinations is gadolinium-based. In rare cases, hypersensitivity might happen, which may occur in the form of an allergic reaction immediately after the administration of the contrast agent.

When is the result of the paranasal sinus (visceral cranium) MRI examination expected?

The completed recording will be reviewed by the radiologist and the result will be available online after 3 working days.

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Paranasal sinus (visceral cranium) MRI examination - Medicover
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