• Fasting Requirements: You must fast (abstain from solid foods and colored liquids) for at least 4 to 6 hours before your appointment. Plain water is permitted.
• Kidney Function Test (Serum Creatinine): Please provide a recent Serum Creatinine blood test report (within the last 15 days). Since the kidneys process the contrast dye, we must ensure your renal function is sufficient to clear it safely.
• Allergy Disclosure: Please inform the Scan4Health team if you have a known iodine allergy or have reacted to contrast media in the past.
• Remove Metal Objects: You will be asked to remove jewelry, earrings, spectacles, hairpins, and removable dental appliances (dentures). Metal creates artifacts (streaks) that can obscure the fine bony details of the sinus walls.
• Avoid Eye Makeup: Avoid heavy eye makeup on the day of the scan, as some products contain metallic particles that can distort the images.
• Medication Review: Inform our clinical staff if you are taking Metformin for diabetes. You may be advised to pause this medication for 48 hours following the contrast injection.
• Post-Scan Hydration: Plan to drink 8–10 glasses of water over the next 24 hours after the test to help your kidneys efficiently flush the contrast agent.

The CE CT PNS at Scan4Health Gurgaon is a powerful tool for investigating persistent or complex upper respiratory symptoms:

Key clinical uses include:

• Chronic Rhinosinusitis: Contrast helps differentiate between simple mucosal thickening and active, aggressive inflammatory processes or fungal infections.
• Tumor Characterization: It is the gold standard for identifying and staging tumors of the nasal cavity and sinuses, showing their blood supply and relationship to the eyes or brain.
• Nasal Polyps and Masses: The scan evaluates the extent of polyps and helps distinguish them from other soft-tissue growths or cysts such as mucoceles.
• Complications of Infection: It identifies whether a sinus infection has spread to the eye socket (orbital cellulitis) or to the brain, both of which are medical emergencies.
• Pre-Surgical Planning (FESS): Provides a 3D blueprint for surgeons to navigate the delicate, paper-thin bones of the sinuses, significantly increasing the safety of endoscopic procedures.