Last Updated 1 July 2025
Has your doctor recommended a CT scan and you're wondering what to expect? A Computed Tomography (CT) scan is a powerful diagnostic tool that gives doctors a detailed look inside your body. This comprehensive guide will walk you through its purpose, the step-by-step procedure, the CT scan cost in India, and how to make sense of your results.
A Computed Tomography (CT or CAT) scan is an advanced imaging test that combines a series of X-ray images taken from different angles around your body. A computer then processes these images to create cross-sectional pictures, or slices, of your bones, blood vessels, and soft tissues. This provides much more detailed information than a standard X-ray.
Think of it as looking at a single, detailed slice of a loaf of bread instead of just the outside. These detailed images help doctors diagnose diseases, plan medical treatment, and check how well a treatment is working.
A doctor may recommend a CT scan for a wide variety of reasons. It is a versatile tool used to:
Understanding the CT scan procedure can help you feel more prepared and comfortable. Here’s a step-by-step look at what happens.
Preparation: You may be asked to fast for a few hours before your scan, especially if a contrast material is being used. Contrast Material: In some cases, a special dye called a contrast material is given orally (to drink) or intravenously (via an injection) to help highlight certain areas of your body. Inform the technician if you have any allergies, especially to iodine. Clothing: You will be asked to remove metal objects like jewellery, glasses, and dentures, and you may need to change into a hospital gown.
Unlike a blood test, a CT scan report doesn't have a numerical normal range. Instead, a specialist doctor called a radiologist will analyse your images and write a detailed report describing their findings.
Disclaimer: Your report will be sent to your referring doctor. It is crucial to discuss your results with your doctor, who will interpret the findings in the context of your symptoms and medical history to make an accurate diagnosis.
The CT scan cost in India can vary significantly based on several factors:
Generally, the cost for a basic CT scan test can range from ₹2,000 to ₹15,000 or more. For an accurate price, it's best to check with specific labs.
Receiving your CT scan report is just one step in your healthcare journey. The next step is a consultation with your doctor to discuss the findings.
Based on your results, your doctor may:
It depends on the type of scan. For abdominal or pelvic scans, and for most scans using contrast dye, you will likely be asked to fast for 4-6 hours. Always confirm the specific instructions with the diagnostic centre when you book your CT scan.
The scan itself usually takes only 10-30 minutes. However, the radiologist needs time to carefully review the images and prepare a report. You can typically expect your results within 24 to 48 hours.
The scan itself is completely painless. If you need an IV for contrast dye, you might feel a brief prick from the needle and a warm sensation as the dye enters your body, but this is temporary.
CT scans use a small dose of radiation. While the risk from a single scan is very low, your doctor will always weigh the benefits against the risks. The other potential risk is an allergic reaction to the contrast material, which is rare.
A CT scan uses X-rays and is very fast, making it excellent for viewing bones, detecting internal bleeding, and assessing trauma. An MRI uses magnets and radio waves, takes longer, and is better for imaging soft tissues like ligaments, tendons, the brain, and the spinal cord in fine detail.
This information is for educational purposes only and is not a substitute for professional medical advice. Please consult a licensed physician for health concerns or diagnoses.