CT Paranasal sinuses (FESS Protocol) Without Contrast

Specimen Required

NONE

Fasting Required

Purpose of the Test

A CT paranasal sinuses without contrast is a diagnostic medical imaging test that uses computed tomography to produce detailed images of the structures in the sinuses.

When this test is required

The test is typically requested by a physician or other healthcare provider when there is a suspicion of a problem in the sinuses that needs further evaluation.

What the Test Detects

A CT paranasal sinuses without contrast, also known as the “FESS protocol,” is a diagnostic medical imaging test that uses computed tomography to produce detailed images of the structures in the sinuses without the use of a contrast dye.The test is used to evaluate the sinuses for a variety of conditions, such as:Chronic or recurrent sinus infectionsChronic sinusitisNasal polyps or growthsTrauma or injury to the face or sinusesCongenital abnormalities or structural issuesThe test is non-invasive and involves lying still on a table while the CT scanner takes images. The images are then reviewed by a radiologist or other healthcare provider to make a diagnosis.

Preparation for the Test

Patients may be asked to avoid eating or drinking for a few hours before the test and to remove any jewelry or metal objects from their body before the test. It is important for patients to follow any instructions given to them by their healthcare provider.The CT paranasal sinuses without contrast is also known as the “FESS protocol,” which stands for “Functional Endoscopic Sinus Surgery.” This type of CT scan is commonly used to help guide sinus surgery by providing detailed images of the sinuses and surrounding structures.

Sample Requirements

No sample is required for a CT paranasal sinuses without contrast. The test is non-invasive and involves lying still on a table while the CT scanner takes images.

Additional Notes

Patients may be asked to avoid eating or drinking for a few hours before the test and to remove any jewelry or metal objects from their body before the test. It is important for patients to follow any instructions given to them by their healthcare provider.It is important to note that a CT scan involves exposure to ionizing radiation, which can increase the risk of cancer over time. However, the benefits of the test usually outweigh the risks, especially when it is necessary for making a diagnosis or guiding treatment.

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