CT Neck & Upper Thorax

Why a CT neck scan is done

• Detect infections, tumours, or injuries in the neck and upper chest
• Guide biopsies, surgeries, or cancer treatment plans
• Evaluate swollen lymph nodes, thyroid issues, or unexplained pain

Key benefits in brief

• 10–15 minute scan time
• High-resolution 3D images
• Same-day reporting at Cadabams Diagnostics

How CT imaging works

CT (Computed Tomography) uses low-dose X-rays and advanced computers to create cross-sectional pictures of the CT NECK & UPPER THORAX. You lie on a table that glides through a ring-shaped scanner while detectors capture detailed images.

Neck region covered

• Base of skull to upper chest (T2 vertebra)
• Thyroid gland, larynx, major blood vessels, lymph nodes, spine, and surrounding soft tissue

Difference from MRI or ultrasound

• MRI: No radiation; better for nerve and brain detail; longer scan.
• Ultrasound: No radiation; limited depth; operator-dependent.
• CT: Faster, best for bone, lung, and vessel detail; ideal for emergencies.

Non-contrast CT neck

• Quick; ideal for stones, trauma, or when contrast is contraindicated.

CT neck with IV contrast

• Highlights blood vessels, tumours, and inflammation.

CT neck angiography

• Focused on carotid and vertebral arteries; detects aneurysms or blockages.

• Soft-tissue details: Muscles, fat planes, glands
• Lymph nodes assessment: Size, shape, enhancement pattern
• Vascular structures: Carotid, jugular, subclavian vessels
• Bone evaluation: Cervical spine, clavicles, sternum

• Persistent neck pain or swelling—rule out abscess or tumour.
• Suspected infections or abscesses—plan drainage.
• Cancer staging & follow-up—monitor treatment response.

Common symptoms indicating a scan

• Persistent neck pain, lump, or swelling
• Hoarseness or difficulty swallowing
• Sudden trauma or injury

Age groups & risk factors

• Adults over 40 with smoking history
• Children (low-dose protocols) after injury or infection
• Patients with autoimmune or thyroid disorders

Referral by specialists

• ENT surgeons, oncologists, endocrinologists, and emergency physicians may prescribe the CT NECK & UPPER THORAX.

• Thyroid nodules & goitre—detect size, calcification
• Lymphadenopathy—infection, lymphoma, metastasis
• Salivary gland disorders—stones, tumours
• Neck trauma—fractures, airway compromise

• Fasting guidelines (if contrast used): 4–6 hours; clear fluids okay.
• Clothing and metal objects: Wear loose cotton clothes; remove jewellery, hairpins, hearing aids.
• Informing about allergies: Notify staff about shellfish, iodine, or prior contrast reactions.

• Doctor’s prescription with clinical details
• Recent creatinine report (for contrast studies)
• Pregnancy screening for women of child-bearing age (urine β-hCG)

• Morning slots for contrast studies—kidney function stable after overnight fast.
• Same-day emergency availability—24/7 trauma care at Cadabams Diagnostics.

Adults and children

• Paediatric protocols reduce dose by up to 40 %.

Patients with pacemakers or implants

• CT is safe; inform technologist to avoid artefact.

Contraindications checklist

• Severe renal failure (eGFR <30) for contrast
• Pregnancy (relative contraindication)
• Previous severe anaphylaxis to iodinated contrast

1. Arrival & registration: Present ID and prescription.
2. Positioning on the scanner table: Lie supine, head in headrest.
3. Breathing instructions: Hold breath for 5–10 seconds during scan; no pain.
4. Post-scan observation (if contrast): 15-minute monitored area; report generated within 60 minutes.

• Kidney function considerations: Hydrate well; stop metformin 48 hours post-contrast if eGFR <45.
• Contrast allergy precautions: Premedication with steroids & antihistamines arranged if needed.
• Pregnancy & breastfeeding advice: Defer scan or use shielding; express and discard milk for 24 hours post contrast.

Radiation exposure explained

• Modern scanners at Cadabams Diagnostics use ALARA (As Low As Reasonably Achievable) doses.
• A typical scan equals 3–6 months of natural background radiation.

Contrast-related concerns

• Mild warmth or metallic taste is common.
• Rare allergy (rash, nausea) managed on-site with medication.

When a scan may be inconclusive

• Very small lesions <2 mm may be missed.
• Metallic dental fillings can cause streak artefacts; techniques are adjusted to minimise this.