Pns/skull X-Ray Scan

The PNS/Skull X-Ray Scan is a painless imaging test that captures detailed pictures of your paranasal sinuses (PNS) and skull bones. Whether you’re battling recurrent sinusitis or a recent head injury, this scan offers a quick snapshot of possible blockages, infections, or fractures. Cadabams Diagnostics leverages digital radiography to keep radiation exposure minimal while ensuring crystal-clear images.

Definition & Technology Used

A PNS/Skull X-Ray Scan uses low-dose ionizing radiation to create black-and-white images of your sinuses, nasal cavity, and cranium. Our digital detectors convert X-rays into instant digital images, reducing repeat scans and shortening your visit.

Difference from CT/MRI of Sinuses

• X-ray: 2D, 2–5 mins, lower cost, ideal for screening.
• CT: 3D, higher radiation, best for complex sinus disease.
• MRI: No radiation, superior soft-tissue detail, higher cost.

• Air-fluid levels or opacities in sinuses
• Septal deviation or bony spur
• Fracture lines or bone erosion
• Adenoid shadow in children
• Mastoid air-cell clarity (lateral view)

• Confirm acute bacterial sinusitis before antibiotic therapy
• Rule out sinus obstruction causing dental pain
• Monitor chronic sinusitis treatment response
• Evaluate post-trauma skull integrity
• Pre-operative mapping for ENT procedures

Common Symptoms Prompting Scan

• Persistent nasal congestion or thick nasal discharge
• Facial pain around cheeks, forehead, or between the eyes
• Recurrent headaches worse on bending forward
• Suspected sinusitis or sinus polyps
• Head injury with local tenderness or swelling

Pediatric vs Adult Indications

• Children: Chronic nasal obstruction, suspected adenoid enlargement.
• Adults: Chronic sinusitis evaluation before ENT referral.

• Cost-effective vs CT – up to 70 % savings
• Quick turnaround – digital images ready in 15–30 minutes
• No contrast required – ideal for patients with kidney issues or allergies

• Acute & chronic sinusitis
• Nasal polyps or cysts
• Deviated nasal septum
• Skull fractures (linear, depressed)
• Osteomyelitis of frontal bone

Do’s

• Remove earrings, hairpins, dentures.
• Inform staff about pregnancy or suspected pregnancy.
• Bring prior reports for comparison.

Don’ts

• No fasting required.
• No need to stop routine medications.

• Valid doctor’s prescription or digital referral
• Government-issued ID for registration
• Loose, metal-free clothing

• Morning slots: Easier removal of hair accessories.
• Same-day booking: Ideal when symptoms are at their peak, aiding accurate correlation.

• Age: Newborns to geriatric patients
• Conditions: Safe for diabetes, hypertension, asthma.
• Exceptions: Pregnancy in first trimester (alternate ultrasound or deferred unless urgent).

Step-by-Step Positioning

1. Registration & Consent – 2 minutes
2. Metal removal – 1 minute
3. Positioning – technician aligns head per chosen view.
4. Stillness – “Hold your breath” for 1–2 seconds.
5. Repeat for additional views if required.

Duration & Comfort Measures

• Total time: 5–7 minutes.
• Soft foam headrests for neck support.
• Parents may stay with children in protective lead aprons.

• Always disclose pregnancy status.
• Remove metallic hair extensions or implants.
• Inform radiologist if you have a cochlear implant or cranial plates.

Radiation Exposure Details

• Effective dose: ~0.01–0.02 mSv (equal to 1–2 days of natural background).
• Safety: ALARA principle (As Low As Reasonably Achievable) upheld at Cadabams Diagnostics.

Limitations vs CT/MRI

• Cannot evaluate soft-tissue masses or early fungal sinusitis.
• Limited view of posterior ethmoid & sphenoid sinuses.