Patient Guide to PET-CT Scan Technology

Talk to Health Expert

04 Feb, 2026

Dr. Nikunj Jain

Dr. Nikunj Jain

Co-Founder and HOD - Nuclear Medicine ,

MBBS, DRM, DNB, FEBNM, FANMB, Dip. CBNC

Patient Guide to PET-CT Scan Technology

At Molecular Diagnostics and Therapy, the Centre has changed the way that doctors detect, monitor, and treat serious health-related problems. One of the most advanced imaging tools available in today's healthcare field is the PET-CT scan, a powerful and safe diagnostic tool that combines two imaging methods to provide doctors with highly detailed and accurate information about treatment. We believe that every patient should understand their tests and gain knowledge about the treatment, so they feel more comfortable and more confident. This blog is designed to help you to understand the PET-CT scan in a simple and comfortable way.

What is a PET-CT scan?

PET-CT scan is a type of scan that combines two powerful imaging methods, i.e., Positron Emission Tomography and Computed Tomography. The PET shows doctors how tissues and organs function at the cellular level, while CT provides a clear, detailed structural image. Together, they help doctors to find diseases at an early stage. The Diagnostics Centre uses advanced PET-CT Scan technology that plays an important role in early detection and accurate treatment planning.  

How Does PET-CT Technology Work?

Before the PET-CT scan, a small amount of radioactive tracer is injected into your body. This radioactive tracer travels through the bloodstream and collects cancer cells in the area where cells are more active. The PET scan detects the activity, while the CT scan provides a detailed structural image. The results of this procedure are a clear and detailed image that helps doctors to identify abnormal tissue, measure disease spread, and monitor how well the treatment is working.

Why is a PET-CT scan recommended?

 Sometimes, Doctors suggest a PET-CT scan for many reasons, which include:

  • Detecting cancer at an early stage.

  • Checking if cancer has spread.

  • Evaluating treatment effectiveness.

  • Identifying heart and brain disorders.

  • Differentiating between active disease and scar tissue.

The Advanced PET-CT scan is used to support personalized medical care.

What Conditions Can PET-CT Detect?

The PET-CT scan is primarily used as a diagnostic tool in oncology, but also helps in:

  • Neurological conditions such as epilepsy and Alzheimer’s disease.

  • Cardiac issues, such as reduced blood flow to the heart.

  • Infections and inflammatory diseases.

The above-mentioned applications of this scan make the PET-CT scan an important part of the modern diagnostic Centre or in the healthcare field.

What Should Patients Expect During the Scan?

The scanning process is simple and painless:

  1. You receive the tracer injection and rest for about 45–60 minutes.

  2. You lie on a scanning table that moves slowly through the scanner.

  3. The scan itself usually takes 20–30 minutes.

 The treatment procedure is painless, and our trained technicians ensure patient comfort throughout the procedure at Molecular Diagnostic and Therapy.

How to Prepare for a PET-CT scan

Proper preparation for the PET-CT scan is important for accurate results:

  • Fast for 4–6 hours before the scan.

  • Drink plain water unless advised otherwise.

  • Avoid heavy physical exercise the day before.

  • Inform the doctor about diabetes, pregnancy, or medications.

Clear and Accurate information is always provided by our trained technicians before your confirmed appointment.

Is a PET-CT scan Safe?

Yes, a PET-CT scan is a painless and safe treatment procedure. The small amount of radioactive tracer is carefully used and controlled within medical safety limits. The benefits of the best diagnosis and treatment planning greatly reduce the risks. At any diagnostics centre, patient safety is always our top priority.

How Are PET-CT Results Used?

PET-CT results help doctors to:

  • Decide ton he best treatment plan.

  • Avoid unnecessary surgeries.

  • Track disease progression.

  • Adjust therapies for better outcomes.

This accurate support of the medical team makes advanced care of patients at most of the diagnostics Centre.

Why Choose Molecular Diagnostic and Therapy?

 We have modern PET-CT scan tools and services with accurate medical care. Our focus is on medical care and patient comfort with accurate results, but also on patient knowledge about the treatment, their comfort, and trust. Every scan is performed and viewed properly by our trained technicians, which is highly dedicated to clinical standards.

Conclusion

The PET-CT scan is more than an imaging test- it is also a window that shows how our body is functioning at a cellular level. It also helps the doctors to detect disease early before they become severe, plan targeted treatments, and monitor recovery with full confidence.

At Molecular Diagnostic and Therapy, we provide an advanced PET-CT scan diagnostic tool, which is backed by precision, safety, and the comfort of patients. Our mission is to provide advanced diagnostic services that are understandable and accessible for every patient.

If your doctor has advised a PET-CT scan or you want the best information on an advanced imaging tool, you should trust the best diagnostics Centre for accurate results and medical care.

 Book your PET-CT scan today.
Experience clarity, confidence, and patient care -because your health deserves nothing less.

Call 9217244110 to book your appointment or get more information.

Frequently Asked Questions

No, the scan is painless. You may only feel a small pinch during the injection.

The full procedure usually takes 2–3 hours, including preparation time.

You will usually need to fast for 3-4 hours. Follow the instructions given by technicians.

It is safe for most people, but special precautions are needed for pregnant or breastfeeding women.

Reports are typically available within 24–48 hours, depending on the case.

Yes, PET-CT can detect cancer at very early stages by identifying abnormal cell activity.

Wear comfortable clothing without metal. You may be asked to change into a gown.

Yes, but special preparation is required. Inform the team in advance.

In News

Download Our App

Get Our Mobile App
for Easy Access

Book tests, view reports, and manage your health records on the go. Experience convenient healthcare with Molecular Diagnostics and Therapy.

  • Book tests & home collection
  • View reports instantly
  • Track health history
  • Get notifications & reminders
  • Easy appointment management
Your Health Companion
Scan to download Molecular Diagnostics and Therapy App

Scan to download the app