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CT Scan of the Sinuses

A CT scan of the sinuses uses advanced imaging to create detailed views of the sinus cavities and surrounding structures. It can help physicians investigate persistent sinus symptoms, identify blockages or inflammation, and evaluate conditions affecting the nose and sinuses.

What Is a CT Scan of the Sinuses?

A CT scan of the sinuses, also called a sinus CT, uses a series of X-ray images and computer processing to produce detailed cross-sectional views of the sinus cavities, nasal passages, facial bones, and nearby structures. Because the images provide considerably more detail than conventional X-rays, CT can help physicians see changes within the sinuses that may be difficult to evaluate through a physical examination alone.

Your physician may recommend a sinus CT when symptoms are persistent, recurrent, or difficult to explain. The exam can help assess chronic sinus problems, structural abnormalities, suspected infections, nasal obstruction, or other conditions involving the sinuses and surrounding anatomy. It may also be used when planning certain sinus procedures or evaluating the results of previous treatment.

Sinus CT exams are typically performed without contrast, although contrast may be recommended in certain circumstances based on the condition being evaluated.

Why Choose Gateway Diagnostic Imaging for Your Sinus CT?

Gateway Diagnostic Imaging offers outpatient CT imaging at convenient locations throughout the Dallas-Fort Worth metroplex and Abilene. Our imaging centers are designed to provide an efficient alternative to hospital-based imaging, with a focus on patient comfort and streamlined appointments.

Experienced technologists perform your exam according to your physician’s imaging order, while board-certified, subspecialized radiologists interpret the resulting images. Reports are delivered to your referring provider so the findings can be incorporated into your diagnosis and treatment plan.

What Does a CT Scan Show in the Sinuses?

A sinus CT gives physicians a detailed look at the air-filled spaces and structures that make up the sinus and nasal region, including the:

  • Frontal sinuses
  • Maxillary sinuses
  • Ethmoid sinuses
  • Sphenoid sinuses
  • Nasal passages
  • Sinus drainage pathways
  • Nasal septum
  • Facial bones
  • Surrounding soft tissues

Depending on your symptoms and medical history, your physician may use a sinus CT to evaluate:

  • Chronic or recurrent sinusitis
  • Persistent sinus pressure or facial pain
  • Nasal congestion or obstruction
  • Inflammation or fluid within the sinus cavities
  • Blocked sinus drainage pathways
  • Nasal polyps or other abnormal tissue
  • Structural abnormalities of the nose or sinuses
  • Injuries involving the facial bones
  • Unexplained changes that have not responded to treatment

The detailed images can help your physician determine whether structural or inflammatory changes may be contributing to your symptoms and whether additional treatment or evaluation is appropriate.

How To Prepare for a CT Scan of Your Sinuses

Scheduling Considerations

  • Same-day and next-day appointments may be available.
  • Most sinus CT exams require little preparation.
  • If contrast is ordered, you may receive additional instructions before your appointment.
  • Plan to arrive approximately 15 minutes before your scheduled exam.

Medical Information to Provide

  • Tell the imaging team about any allergies or previous reactions to contrast material.
  • Provide information about current medications and relevant medical conditions.

Insurance and Documentation

  • Bring a valid photo ID.
  • Bring your insurance card.

What to Wear

  • Choose comfortable clothing without unnecessary metal.
  • You may be asked to remove glasses, jewelry, hearing aids, or other removable items that could interfere with the images.
  • In some cases, you may be asked to change into a gown.

What To Expect During The CT Scan of Your Sinuses

Before the exam begins, a technologist will explain the process and help position you for imaging. You will lie on a padded CT table, generally with your head positioned within a specialized support area.

The table moves through the CT scanner as the equipment captures images of your sinus and facial structures. It is important to remain still during the scan so the images remain clear. You may hear the equipment operating as the images are acquired, but the scan itself is generally quick.

Most sinus CT exams can be completed in just a few minutes, although the total appointment time may vary depending on the type of exam and whether additional preparation is required.

What To Expect After Your Sinus CT Scan

There is typically no recovery period following a sinus CT. Unless you received special instructions from your physician, you can generally return to your regular activities after the exam.

If contrast material was used, the imaging team will provide any appropriate post-exam instructions. Your images will be reviewed by a board-certified, subspecialized radiologist, who will prepare a report for your referring physician.

FAQs

How long does a sinus CT scan take?

A sinus CT is generally a short exam, with the actual image acquisition often taking only a few minutes. Your total time at the imaging center may be longer because of check-in, positioning, and any necessary preparation.

Does a CT scan of the sinuses use contrast?

Most sinus CT examinations are performed without contrast. However, contrast may be ordered for certain clinical situations. Your physician will determine the appropriate protocol based on the reason for your exam.

What can a sinus CT detect?

A sinus CT can show inflammation, fluid, blocked drainage pathways, structural abnormalities, nasal polyps, and other changes involving the sinus cavities and surrounding anatomy. It can also provide information about the facial bones and nasal passages.

Is a sinus CT the same as an X-ray?

Both use X-rays to create images, but CT produces multiple cross-sectional images that can be viewed in greater detail. This allows physicians to assess the sinuses and surrounding structures more comprehensively than with a standard X-ray.

Where are Gateway Diagnostic Imaging sinus CT scans available?

Gateway Diagnostic Imaging provides CT imaging at outpatient centers throughout the Dallas-Fort Worth metroplex and Abilene, offering convenient options for patients who need diagnostic imaging close to home.

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