A CT scan of the paranasal sinuses (PNS) with contrast is a series of cross‑sectional X‑ray images taken after intravenous iodine dye to better outline blood vessels and soft tissues. It helps detect sinusitis complications, tumors, inflammatory or vascular lesions, and bone involvement. Contrast improves differentiation of masses and infected tissue. Risks include allergic reaction and rare kidney effects; pre‑screening is routine.

CT PNS (paranasal sinuses) scan costs vary widely. In India it typically ranges from about ₹800–₹5,000 at diagnostic centers; in the UK scans are free on the NHS for eligible patients but privately cost roughly £100–£400. In the US a CT sinuses scan may cost approximately $200–$2,000 or more depending on facility, contrast use, location, urgency and insurance.

PNS in a CT scan means paranasal sinuses. A CT PNS (CT sinuses) provides detailed cross-sectional images of the air-filled cavities around the nose to detect sinusitis, polyps, anatomical variants, fractures, or tumors. It shows bone and soft-tissue detail, may be done with or without contrast, and helps guide treatment or surgery planning. It uses ionizing radiation.

The CT scan of the paranasal sinuses usually takes 5–10 minutes for image acquisition; the whole appointment, including positioning and brief instructions, typically lasts 10–20 minutes. If intravenous contrast is needed, allow extra time for injection and monitoring, bringing the visit closer to 20–30 minutes. Preparation and waiting-room time may add more.

Generally no — a CT scan of the paranasal sinuses is noninvasive and painless. You’ll lie on a table while the scanner rotates; most people feel no pain, only mild discomfort from lying still or anxiety/claustrophobia. If contrast dye is used, IV insertion can sting and you may feel brief warmth; allergic reactions are rare. Sedation can be offered for children or very anxious patients.

Yes—it's generally recommended to remove a nose ring before a CT scan if it's in or near the scanned area. Metal can create image artifacts that reduce diagnostic accuracy. For scans away from the face it may not matter, but always follow the imaging team's instructions. If you cannot remove the ring, tell the technician so they can note or adjust the protocol.