Computed Tomography (CT)

Medical imaging using X-rays.

P.N.S

The CT paranasal sinus protocol serves as an examination for the assessment of the study of the mucosa and bone system of the sinonasal cavities. CT PNS is primarily performed to assess and diagnose various conditions affecting the paranasal sinuses, including sinusitis (inflammation of the sinuses), nasal polyps, tumors, and anatomical variations.

  • Sinus Infections (Sinusitis): If you’re experiencing persistent or recurrent sinus infections, a CT scan can help visualize the sinuses and identify any blockages, inflammation, or structural issues that may contribute to the problem.

  • Chronic Facial Pain or Headaches: If you have chronic facial pain or headaches, especially centered around the sinus areas, a CT scan can provide detailed images to help identify potential causes such as sinus congestion, polyps, or other abnormalities.

  • Nasal Obstruction or Congestion: CT scans can reveal any blockages or abnormalities in the nasal passages and sinuses that may be causing nasal congestion or obstruction.

  • Evaluation of Tumors or Growths: A CT scan can help detect and evaluate tumors, cysts, or other abnormal growths in the paranasal sinus region.

  • Trauma or Injury: If you’ve experienced facial trauma or injury, a CT scan can assess the extent of damage to the paranasal sinuses and surrounding structures.

  • Pre-surgical Planning: Before certain sinus or nasal surgeries, a CT scan may be performed to help surgeons plan the procedure by providing detailed images of the anatomy.

  • Chronic or Recurrent Respiratory Issues: CT scans can be useful in assessing the sinuses in individuals with chronic respiratory issues, as sinus problems can sometimes contribute to breathing difficulties.

  • You should wear comfortable, loose-fitting clothing to your exam.
  • Metal objects, including jewelry, eyeglasses, dentures and hairpins should be left at home or removed prior to your exam. You may also be asked to remove hearing aids and removable dental work. Women will be asked to remove bras containing metal underwire. You may be asked to remove any piercings, if possible.
  • You should inform the technologist if you have a pacemaker.
  • You may be asked not to eat or drink anything for a few hours beforehand, especially if a contrast material will be used in your exam.
  • You should inform your physician of all medications you are taking and if you have any allergies.
  • Inform your doctor of any recent illnesses or other medical conditions and whether you have a history of heart disease, asthma, diabetes, and kidney disease or thyroid problems.
  • Women should always inform their physician and the CT technologist if there is any possibility that they may be pregnant.
  • Your diet will be restricted to clear liquids the day before the examination
  • Be sure to inform your physician if you have heart, liver or kidney disease to be certain that the bowel prep will be safe.

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