CT Scan of Hrct

The CT scan of HRCT—short for High-Resolution Computed Tomography—is a specialised imaging test that captures razor-sharp images of very small structures inside the body. It is especially useful for examining the lungs, but also helps doctors study the temporal bone and other fine anatomical areas. Cadabams Diagnostics offers the latest HRCT technology, ensuring accurate results with minimal discomfort.

An HRCT High-Resolution Computed Tomography Scan uses thin-slice X-ray beams and advanced computer processing to create detailed cross-sectional pictures. Compared to a regular CT, the “high-resolution” mode uses:

• 1 mm or thinner slice thickness
• High-spatial-frequency reconstruction algorithms
• Targeted imaging of specific organs This level of detail makes subtle lung scarring, tiny bone fractures, or early infections visible—often before symptoms appear.

Thoracic HRCT

Focuses on lungs and airways. Detects emphysema, bronchiectasis, or lung nodules.

Temporal Bone HRCT

Examines the ear structures to diagnose cholesteatoma, ossicular chain disruption, or superior canal dehiscence.

High-Resolution CT Patterns

Radiologists look for specific textures—ground-glass opacities, honeycombing, or tree-in-bud patterns—to classify disease type and stage.

Technicians monitor:

• Slice thickness (0.5–1 mm)
• Kilovoltage (kV) and milliamperage (mA) settings
• Reconstruction interval
• Breath-hold duration
• Contrast timing (if used)

• Slice thickness (0.5–1 mm)
• Kilovoltage (kV) and milliamperage (mA) settings
• Reconstruction interval
• Breath-hold duration
• Contrast timing (if used)

• Evaluate unexplained dyspnoea
• Monitor progression of interstitial lung disease
• Detect early pulmonary fibrosis
• Assess occupational lung disorders (e.g., silicosis)
• Plan or guide lung biopsy procedures

Doctors most often recommend an HRCT scan for patients who:

• Have persistent cough, shortness of breath, or unexplained chest pain
• Are at risk of interstitial lung disease or lung fibrosis
• Need to rule out COVID-19 pneumonia complications
• Suffer from chronic sinusitis or hearing loss (temporal bone imaging)
• Require follow-up after abnormal chest X-rays If you fall into any of these groups, ask your physician whether a CT scan of HRCT is the next logical step.

• Early detection of serious disease
• Non-invasive compared to surgical biopsy
• Quick appointment slots—often same-day at Cadabams Diagnostics
• Digital reports delivered within 24 hours
• Reduced repeat scans thanks to high clarity

• Idiopathic pulmonary fibrosis
• Sarcoidosis
• COVID-19 pneumonia sequelae
• Bronchiectasis
• Temporal bone fractures
• Chronic otitis media complications

• Valid doctor’s prescription
• Recent serum creatinine report if contrast is used
• Signed consent form acknowledging radiation exposure
• Insurance pre-authorisation (if applicable)

• Morning slots reduce waiting times
• Schedule after initial treatment for baseline imaging
• For follow-up scans, maintain the same time of day for consistency

• Adults and children (age 5+ able to hold breath)
• Pregnant women—only if benefits outweigh risks and with lead shielding
• Patients with implanted devices—most are HRCT-compatible

1. Check-in at Cadabams Diagnostics reception.
2. Change into gown if needed; store valuables in locker.
3. Lie on the table; the technician positions you.
4. Hold your breath for 5–10 seconds while the gantry rotates.
5. Contrast dye (if ordered) is injected via IV halfway through.
6. Total scan time: 10–15 minutes.
7. Dress up and collect your appointment slip for report collection.

• Allergies: Inform staff about shellfish, iodine, or prior contrast reactions.
• Diabetes: Hold metformin on the day of contrast scan.
• Claustrophobia: Ask for mild sedation available on request.
• Children: A parent can stay in the room wearing a lead apron.

While generally safe, the test involves:

• Radiation exposure—roughly equal to six months of natural background radiation
• Contrast dye risks—possible allergic reaction or kidney strain in susceptible patients
• Limitation in motion—blurred images if the patient cannot hold their breath
• Not ideal for obese patients—image quality may drop in very high body-mass index ranges Cadabams Diagnostics uses dose-reduction protocols and follows strict safety guidelines to keep risks minimal.