CT Pns Axial / Coronal Views

What is CT PNS Axial/Coronal Views?

CT PNS stands for Computed Tomography of the Para-Nasal Sinuses. The “Axial” slice shows cross-sections from top to bottom, while the “Coronal” slice displays front-to-back views. Together, they create a high-resolution 3D map of your sinus cavities, septum, and drainage pathways.

When and Who Needs to Take a CT PNS Axial/Coronal Views Scan?

• Persistent nasal congestion or facial pain lasting >12 weeks
• Repeated sinus infections (more than 4 per year)
• Suspected nasal polyps or structural blockage
• Planning for sinus or septal surgery
• Recent facial trauma or suspected sinus fracture

Axial View

• Taken parallel to the hard palate
• Best for evaluating the sphenoid and posterior ethmoid sinuses

Coronal View

• Taken perpendicular to the nasal floor (like looking at the face straight on)
• Ideal for assessing the osteomeatal complex and frontal sinuses

Combined Axial + Coronal Protocol

• Merges both orientations for a 360° sinus map
• Standard at Cadabams Diagnostics—no extra cost or time

• Chronic sinusitis evaluation
• Nasal polyps detection
• Pre-surgical planning for FESS (Functional Endoscopic Sinus Surgery)
• Trauma assessment after sports injuries or accidents

• High-resolution 3D sinus imaging—see every crevice in 0.5 mm slices
• Low radiation dose—child-safe protocols available
• Same-day digital report—sent to your phone or email within 2 hours
• Guides targeted treatment—no trial-and-error with antibiotics or sprays

• Acute & chronic sinusitis
• Nasal polyposis
• Deviated nasal septum
• Fungal sinus disease (aspergillosis, mucormycosis)

Pre-requisites

• Remove earrings, nose pins, hairpins, and dental retainers
• Inform technologist if you are or might be pregnant

Best Time to Take the Scan

• Any time of day; fasting not required

Eligibility

• Adults & children 5 years and above
• Safe for patients with asthma or hypertension

Procedure for Taking a CT PNS Axial/Coronal Views Scan

1. Lie on the scanner table; head in a soft holder.
2. Stay still for 5–10 seconds while the gantry rotates.
3. Breathe normally—the machine does the rest.

Caution Before the Scan

• Pregnancy: Postpone if possible
• Contrast allergy: Rarely used; let us know if you have iodine sensitivity

• Radiation dose: Low (≈0.3 mSv), roughly equal to 2 months of natural background exposure.
• Limitations: Soft-tissue swelling can sometimes hide very small polyps; contrast is rarely needed, but discuss allergies if recommended.
• Pregnancy: Inform staff—scans are postponed in the first trimester unless urgent.