A PNS CT scan is a computed tomography study of the paranasal sinuses that produces detailed cross-sectional images of sinus cavities, nasal passages, bones and soft tissues. It helps diagnose sinusitis, polyps, tumors, anatomical variants, fractures, or plan sinus surgery. Noninvasive and quick, it gives greater detail than plain X-rays, involves low-dose radiation and may use contrast in select cases.

A PNS axial coronal sagittal CT scan is a computed tomography of the paranasal sinuses reconstructed in axial, coronal and sagittal planes. It uses X-rays to produce detailed cross-sectional images of sinus cavities, nasal passages and surrounding bone, helping diagnose sinusitis, polyps, fractures, tumors and anatomic variations. Multiplanar views improve surgical planning and assessment; contrast is rarely needed.

An axial CT scan is a computed tomography exam that acquires multiple X‑ray measurements as the scanner rotates, producing cross‑sectional (axial or transverse) images of the body. These detailed slices visualize bones, organs, blood vessels and soft tissue to diagnose trauma, tumors, infections, vascular disease and stroke. Images can be reconstructed into other planes; contrast dye is sometimes used to enhance structures.

A CT PNS (paranasal sinuses) scan itself is quick—usually 5–10 minutes of scanning. Including registration, positioning and image processing expect about 15–30 minutes total. If intravenous contrast is needed, allow extra time for cannulation and a short observation period, bringing it to roughly 30–45 minutes. Reporting turnaround varies; formal reports often arrive within hours to a few days.

A CT scan of the paranasal sinuses typically costs: in India about INR 700–4,000 at standalone centres and INR 2,000–8,000 in private hospitals; in the UK it is free via the NHS, while private scans run roughly £100–£400; in the US prices commonly range from about $300 to $3,000 depending on facility, contrast use and location.

A PNS (paranasal sinuses) CT scan is generally painless and noninvasive. You lie still while the scanner takes images; most people feel no discomfort. If IV contrast is used, you may notice a brief warm sensation, metallic taste, or mild sting at the injection site. Some patients report anxiety or mild discomfort from lying flat or feeling enclosed, but the procedure itself isn’t painful.