PET-CT Scan in Varanasi: What It Shows, Preparation and How to Book

If your doctor has advised a PET-CT scan, you probably have three questions: what is it, how do I prepare, and where can I get it done quickly? This guide answers all three for patients in Varanasi and nearby districts such as Chandauli, Mirzapur, Ghazipur, Jaunpur and Buxar.

Book or ask about PET-CT at ZenHeal Varanasi: Call +91 99307 09000 or WhatsApp +91 98803 78899.

What is a PET-CT scan?

A PET-CT scan combines two tests in one session:

• PET (Positron Emission Tomography) shows how actively cells are using sugar (glucose). Many cancer cells use more glucose than normal cells, so they can appear as "bright" areas.
• CT (Computed Tomography) gives detailed anatomical pictures, showing exactly where those areas are.

Before the scan, a small amount of a radioactive tracer (most commonly F-18 FDG, a glucose-like substance) is injected into a vein. After a waiting period, the patient lies on the scanner bed while images are taken.

Why do doctors advise PET-CT in cancer?

PET-CT is not used for every patient, but it is valuable in specific situations:

1. Staging: to see whether cancer has spread to lymph nodes or other organs, which affects the treatment plan.
2. Radiotherapy planning: helping the radiation oncologist define the target more precisely.
3. Response assessment: checking how the disease has responded after chemotherapy or radiotherapy.
4. Suspected recurrence: when symptoms or blood tests suggest the cancer may have returned.
5. Certain cancers such as lymphoma, lung, head and neck, oesophageal and colorectal cancers, where PET-CT is commonly part of guidelines.

Your oncologist decides whether you need it. A PET-CT does not replace a biopsy; a biopsy remains the way to confirm a cancer diagnosis.

How the team explains the cost of a PET-CT

Treatment cost depends on the type and stage of cancer and the treatment the doctor recommends. After your OPD consultation, the doctor will explain the plan, and our patient counsellor will guide you through the costs. As a cancer-specific hospital, we keep treatment affordable so everyone can access it. Our NGO supports needy patients so you can complete your treatment.

In-person OPD consultation is free. A video consultation is ₹1,000.

Is PET-CT covered by Ayushman Bharat or insurance?

ZenHeal Varanasi accepts Ayushman Bharat (PM-JAY) and cashless insurance. Whether a PET-CT is covered depends on the scheme package, the indication and pre-authorisation. Many private insurance policies cover PET-CT when it is part of cancer treatment and advised by an oncologist. Call the helpdesk with your card details and prescription to check before the scan.

How to prepare for a PET-CT scan

Preparation matters, because poor preparation can reduce image quality and sometimes means the scan must be repeated.

• Fasting: usually 4–6 hours without food before the scan. Plain water is generally allowed. Follow the exact instructions given when you book.
• Diabetes: tell the team in advance. Blood sugar is checked before the tracer injection; high sugar can affect results. Do not change diabetes medicines without advice.
• Avoid heavy exercise for 24 hours before the scan.
• Bring documents: doctor's prescription, biopsy report, previous scan reports and CDs, recent kidney function test (creatinine) if contrast is planned, ID and Ayushman/insurance card.
• Wear comfortable clothes without metal.
• Pregnancy or breastfeeding: inform the team beforehand.

What happens on the day?

1. Registration and blood sugar check
2. Tracer injection through a small IV line
3. A quiet resting period of about 45–60 minutes, during which you should relax and avoid talking or moving much
4. The scan itself, usually 15–30 minutes, lying still on the bed
5. After the scan, drink plenty of water to help flush the tracer. Avoid close contact with pregnant women and small children for a few hours, as advised by staff.

Total time at the centre is often 2–3 hours.

How soon do I get the report?

Reports are usually available within a day or two, depending on the case. The report should be reviewed by your treating oncologist, who will explain what it means for the treatment plan. At ZenHeal Varanasi, the PET-CT result can be discussed directly with the treating team, including radiation oncologist Dr Amit Kumar Pathak where radiotherapy is being considered.

Why get PET-CT done at a cancer hospital?

Getting PET-CT inside the hospital where treatment will happen has practical advantages:

• Fewer trips for families travelling from Ghazipur, Ballia, Azamgarh or Buxar
• Faster discussion of results with the oncologist
• Easier radiotherapy planning when scan and treatment teams work together
• Help with Ayushman or insurance paperwork in one place

ZenHeal Cancer Hospital Varanasi on Dafi Highway, Varanasi 221011 offers PET-CT along with radiotherapy, chemotherapy, cancer surgery, BMT, a 24x7 ICU and palliative care. See the ZenHeal Varanasi hospital page for details.

Safety of PET-CT

PET-CT involves a small dose of radiation. Doctors advise it when the benefit of the information outweighs this small risk. The tracer has a short life and leaves the body naturally within hours. Allergic reactions to FDG are very rare; reactions to CT contrast are uncommon and the team is prepared to manage them.

Booking your PET-CT at ZenHeal Varanasi

• Call: +91 99307 09000
• WhatsApp: +91 98803 78899 (send the prescription for preparation instructions)
• Address: Dafi Highway, Varanasi 221011

PET-CT, CT or MRI: what is the difference?

Patients often ask why a PET-CT is needed when a CT or MRI has already been done. Each test answers a different question:

• CT scan shows structure: the size and shape of organs and lumps. It is quick, widely available and often the first scan.
• MRI gives very detailed images of soft tissues and is especially useful for the brain, spine, pelvis, liver and head and neck region.
• PET-CT adds information about activity. It can show whether a lymph node or lesion is metabolically active and can scan the whole body in one session.

Your oncologist chooses the test, or combination of tests, that will change the treatment decision. More scans are not always better, so ask your doctor what each test is expected to show.

Second opinions are welcome

If you have already started treatment elsewhere, or have been given a plan and want to understand it better, you are welcome to bring your reports for a second opinion. Seeking another view is a normal and sensible part of cancer care, and a good team will never discourage it. Share your reports on WhatsApp first so the doctor can review them before you travel, which saves time and avoids an unnecessary trip for families coming from other districts.

Frequently asked questions

How do I find out what a PET-CT will cost?

Treatment cost depends on the type and stage of cancer and the treatment the doctor recommends. After your OPD consultation, the doctor will explain the plan, and our patient counsellor will guide you through the costs. As a cancer-specific hospital, we keep treatment affordable so everyone can access it. Our NGO supports needy patients so you can complete your treatment.

Is PET-CT covered under Ayushman card?

ZenHeal Varanasi accepts Ayushman Bharat, and the Ayushman team decides the package for each treatment. Call with your card and prescription to check.

How long should I fast before a PET-CT?

Usually 4–6 hours, with plain water allowed. Follow the exact instructions given when you book.

Can diabetic patients have a PET-CT scan?

Yes, but inform the team in advance. Blood sugar is checked before the scan and special instructions may apply.

Does a PET-CT confirm cancer?

No. PET-CT shows suspicious areas and spread, but a biopsy is needed to confirm cancer.

How long does the PET-CT procedure take?

Plan for about 2–3 hours at the centre, including the resting time after injection.