CT Extremities

What Makes a CT Extremities Scan Unique

• Pin-point accuracy: Sub-millimetre resolution reveals hairline fractures and subtle joint changes.
• 360° view: Cross-sectional slices create a full 3-D reconstruction of the affected limb.
• Speed: Most scans finish within 5–10 minutes, making it ideal for emergency and routine cases alike.

Why Choose Cadabams Diagnostics

• Latest 128-slice CT scanner with dose-reduction technology
• Same-day reporting for urgent cases
• Comfortable, wheelchair-friendly rooms and trained radiographers
• Cashless insurance and online appointment booking

Definition and Purpose

A CT extremities scan is a computed tomography exam focused on the arms (shoulder to fingertip) or legs (hip to toe). It uses low-dose X-rays and computer processing to create detailed images of:

• Bones (cortical and trabecular)
• Joint spaces and cartilage
• Surrounding muscles, tendons, and blood vessels

How It Differs From Other Scans

Upper Extremity CT Scan

• Shoulder – rotator cuff tears, dislocations
• Elbow – ligament injuries, loose bodies
• Wrist & hand – scaphoid fractures, arthritis

Lower Extremity CT Scan

• Hip – stress fractures, AVN
• Knee – meniscal calcifications, osteochondral lesions
• Ankle & foot – Lisfranc injuries, heel spurs

Combined Extremity Imaging

For poly-trauma cases, both upper and lower limbs can be scanned in a single session using whole-body protocols.

• Trauma assessment: Road accidents, sports injuries
• Chronic pain evaluation: Unresolved knee or ankle pain
• Pre-surgical planning: Joint replacement sizing
• Post-operative check: Screw placement after fracture repair

Common Symptoms Indicating Need

• Persistent joint pain lasting >2 weeks
• Swelling or deformity after injury
• Limited range of motion
• Unexplained lumps or warmth over bones

Referral Process

1. Orthopedic specialist or GP reviews your symptoms.
2. Prescription is sent to Cadabams Diagnostics.
3. Appointment is scheduled online or via call.

• Detailed 3-D bone map aids surgeons in complex reconstructions
• 10× faster than traditional MRI for fracture work-ups
• Non-invasive: No injections unless contrast is needed
• Outpatient procedure: Return home immediately after

Fractures and Dislocations

• Hairline wrist fractures missed on X-ray
• Shoulder dislocation with Hill-Sachs lesions

Arthritis & Joint Degeneration

• Early rheumatoid arthritis erosions
• Osteoarthritic knee narrowing

Bone Tumors & Infections

• Osteomyelitis abscesses
• Benign bone cysts vs. malignant lesions

• Wear loose, metal-free clothing or change into a gown.
• Remove jewelry, watches, hairpins from the scanned area.
• Continue most medications; bring a list for contrast checks.
• No fasting unless contrast is ordered.

1. Doctor’s prescription (mandatory)
2. Previous CT/X-ray/MRI reports for comparison
3. Contrast allergy history screening (if needed)
4. Serum creatinine report if >60 yrs or diabetic (for contrast cases)

• Emergency: Open 24/7; priority slots available.
• Scheduled cases: Morning slots (8 am–12 pm) reduce wait times.
• Pediatric patients: Early morning to avoid sedation.

• Age: Safe for infants to seniors (dose adjusted).
• Pregnancy: Not recommended unless life-saving; beta-hCG test if in doubt.
• Weight: Up to 200 kg; bariatric protocol available.

1. Check-in at reception with ID & prescription.
2. Change into gown if metal clothing detected.
3. Positioning on CT table with limb immobilized in a comfortable holder.
4. Topogram (scout view): 5-sec overview to plan scan range.
5. Actual scan: 2–5 min; you’ll hear whirring sounds—stay still.
6. Post-scan: Radiographer checks images; you may leave immediately.

• Contrast allergy: Inform staff of any iodine or shellfish allergy.
• Kidney function: Dialysis patients need pre-hydration.
• Pregnancy: Urine or blood test if pregnancy possible.

Radiation Exposure Considerations

• Effective dose: 0.3–1 mSv (equivalent to ~4 months of natural background).
• Dose-saving software automatically adjusts for children and small adults.

Weight and Size Limitations

• Maximum table weight: 200 kg (440 lbs)
• Gantry opening: 70 cm diameter accommodates most patients comfortably.