Computed Tomography (CT) of the Paranasal Sinuses (PNS) in the Coronal view is a non-invasive diagnostic procedure that provides cross-sectional images of the facial sinuses, which are the small, air-filled cavities located within the bones of the face and skull. These detailed images are incredibly useful in diagnosing a variety of sinus and nasal conditions, including sinusitis, nasal polyps, and structural abnormalities such as a deviated septum.
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Before undergoing a CT PNS scan, it is necessary to follow specific instructions to ensure the images are clear and accurate:
Fasting : In most cases, fasting is not required before a CT PNS scan. However, if the procedure includes the use of a contrast dye, your doctor may instruct you to fast for several hours beforehand.
Allergies : If you are allergic to iodine or any type of contrast material, it is critical to inform your doctor or the radiologist conducting the procedure. In some cases, the contrast material used during a CT scan can cause an allergic reaction.
Medication : You should continue taking any regular medications unless your doctor instructs otherwise. If you have diabetes or certain heart conditions and are taking medication for these conditions, your doctor may provide special instructions.
Pregnancy : If there is any possibility that you could be pregnant, it is important to inform your doctor or the radiologist before the procedure.
A CT PNS scan can detect a wide range of conditions, including sinusitis, nasal polyps, tumors, and structural abnormalities like a deviated septum. It can also identify complications related to sinusitis such as abscesses or bone infections.
During the procedure, you will lie on a table that slides into the CT scanner. The scanner will then take images from different angles while you remain still to ensure the images are clear.
The scan itself typically takes between 10-15 minutes. However, you should plan to spend about an hour in the imaging department for preparation and follow-up.
No, the procedure is not painful. However, some people may feel slightly uncomfortable due to the need to remain still during the scan.
In most cases, you can resume normal activities immediately following the procedure. If a contrast dye was used, you may need to remain at the facility for a short period to ensure you do not have an allergic reaction.
Generally, the results of a CT PNS scan are available within a few days. However, this can vary depending on the facility.
The risks associated with a CT PNS scan are minimal. The primary risks include exposure to a small amount of radiation and the potential for an allergic reaction to the contrast dye.
If you experience symptoms such as hives, itching, or difficulty breathing following your scan, you should seek medical attention immediately. These reactions are rare but can be serious.
If you have not been sedated for the procedure, you should be able to drive yourself home. If you were sedated, you will need someone to drive you home.
If your scan results are abnormal, your doctor will explain the findings and discuss next steps. This may include further testing, treatment, or referral to a specialist.
A CT PNS (Coronal) scan is a vital diagnostic tool that can provide your doctor with detailed images of your sinuses. It's an important step in diagnosing and treating a variety of conditions that can impact your health and quality of life. Always remember to discuss any concerns or questions you may have with your doctor to ensure you fully understand the purpose and process of the test.