HRCT Protocols
Specialized sub-millimeter imaging for Interstitial Lung Disease (ILD).
LDCT Screening
Low-dose lung cancer screening for early detection in high-risk groups.
Cardio-Thoracic
Integrated assessment of heart, large vessels, and pulmonary structures.
Advanced Thoracic Diagnostics
The chest is a dynamic and intricate region containing vital organs such as the heart, lungs, and major blood vessels. Computed Tomography (CT) of the chest has become an indispensable tool in modern respiratory and cardiovascular medicine. At Imperial Imaging, our 128-slice CT scanner provides an unparalleled look into the thoracic cavity, offering the high resolution necessary for accurate diagnosis and monitoring of pulmonary conditions.
Our facility specializes in **High-Resolution Computed Tomography (HRCT)**, which is specifically optimized to provide an exceptionally detailed view of the lung parenchyma. Unlike standard CT, HRCT uses ultra-thin slices (often 0.625mm to 1mm) to visualize the fine structural details of the lungs. This technology is the diagnostic benchmark for interstitial lung diseases (ILD), sarcoidosis, and occupational lung disorders, where seeing the "secondary pulmonary lobule" is key to diagnosis.
The chest cavity is protected by the rib cage and is in constant motion due to breathing and heartbeats. Capturing clear images requires extreme speed. Our 128-slice scanner can image the entire chest in a single breath-hold of just a few seconds. This rapid acquisition minimizes motion artifacts, ensuring that even the smallest nodules or subtle ground-glass opacities are captured with surgical precision.
Common Indications for CT Chest
Thoracic imaging is requested for a variety of clinical presentations. Our protocols are tailored based on the patient's symptoms and the referring physician's requirements:
1 Persistent Respiratory Symptoms
Investigating chronic cough, unexplained shortness of breath (dyspnea), or chest pain. CT can identify hidden infections, bronchiectasis, or early-stage emphysema.
2 Evaluation of X-ray Findings
When a routine chest X-ray shows a "spot" (nodule), enlarged lymph nodes (hilar adenopathy), or pleural effusion, a CT provides the 3D detail needed for definitive characterization.
3 Pulmonary Embolism (PE)
Using CT Pulmonary Angiography (CTPA) to detect blood clots in the pulmonary arteries. This is a life-saving, rapid-response diagnostic tool in our center.
4 Lung Cancer Screening
Low-Dose CT (LDCT) for high-risk individuals. Early detection of small malignant nodules significantly increases successful treatment outcomes.
The Science of HRCT Chest
HRCT is not just a standard scan; it's a specialized technique. By using ultra-thin slices and a high-spatial-frequency reconstruction algorithm, we can visualize the terminal bronchioles and the lung's interstitial network. This is crucial for diagnosing Interstitial Lung Disease (ILD). Our radiologists look for specific patterns—such as "honeycombing," "ground-glass," or "septal thickening"—which provide the key to differentiating between conditions like Idiopathic Pulmonary Fibrosis (IPF) and Nonspecific Interstitial Pneumonia (NSIP).
In the post-COVID era, HRCT has played a vital role in monitoring long-term lung changes. We offer specialized follow-up protocols to assess for post-inflammatory fibrosis and provide quantitative data on lung volume and involvement, helping clinicians manage "Long COVID" symptoms effectively.
Furthermore, our 128-slice scanner allows for integrated **Cardio-Thoracic Assessment**. We can evaluate the thoracic aorta for aneurysms or dissections and visualize the pericardium (the sac around the heart) while simultaneously assessing the lung fields. This comprehensive approach is particularly beneficial for patients with complex symptoms that may have both cardiac and pulmonary origins.
Procedure & Preparation
Before Your Scan
For a standard HRCT (Non-Contrast), no fasting is required. If a "Contrast-Enhanced" CT (CECT) or CTPA is ordered, you must fast for 4 hours. Metal objects like jewelry or bras with underwires should be removed as they can interfere with the image. Please bring any previous chest X-rays or CT reports for comparison.
During Your Scan
You will lie on your back with your arms raised above your head. The table will move through the scanner. You will be asked to hold your breath for a few seconds. For HRCT, we sometimes take additional images while you lie on your stomach (prone) or after you exhale (expiratory) to check for "air trapping."
After Your Scan
You can return to your normal routine immediately. If contrast was administered, increasing fluid intake is recommended. Our specialized thoracic radiologists, led by Dr. Tejeshwar Singh, will analyze your scan and provide a comprehensive report within 24 hours.
Why Choose Imperial Imaging?
At Imperial Imaging, we combine cutting-edge technology with clinical empathy. We know that chest symptoms can be anxiety-inducing. Our team is trained to provide a comfortable experience while ensuring the highest diagnostic standards. Our reports don't just list findings; they provide clinical correlation, helping your doctor choose the best path forward for your respiratory health.
We also offer **Quantitative Lung Analysis**, which is especially useful for COPD and emphysema patients. This software measures the extent of lung tissue destruction and airway thickening, providing objective data to monitor the effectiveness of your treatment over time.
Expert Lung Care Starts Here
Get the clarity you need for your thoracic health. Our 128-slice HRCT provides the ultimate in pulmonary diagnostics.