If your cardiologist has referred you for a cardiac PET CT scan — this page explains what the scan is, the critical difference between the two types of cardiac PET CT, what each costs in Delhi, and the preparation instruction that most patients do not receive and that directly affects diagnostic accuracy.
Cardiac PET CT scan cost in Delhi ranges from ₹20,000 to ₹35,000 depending on the type of scan — myocardial perfusion (Rubidium) or myocardial viability (FDG cardiac protocol) — at AERB-licensed nuclear medicine centres with onsite cyclotron or radiopharmacy.
Quick Answers — Cardiac PET CT Delhi 2026
Cardiac PET CT — myocardial viability (FDG): ₹20,000 – ₹28,000 Cardiac PET CT — myocardial perfusion (Rubidium/Ammonia): ₹25,000 – ₹35,000 Cardiac PET CT — cardiac sarcoidosis (FDG cardiac protocol): ₹22,000 – ₹30,000 Combined perfusion + viability (same day): ₹30,000 – ₹45,000 CGHS rate: Confirm with centre — cardiac PET CT rates vary Cyclotron requirement: Rubidium/Ammonia tracers require onsite cyclotron — limited centres in Delhi NCR FDG viability: Available at most nuclear medicine centres Duration: 1.5 – 3 hours depending on protocol
The Two Types of Cardiac PET CT — The Distinction That Changes Everything
This is the most important section on this page. Cardiac PET CT is not one scan — it has three distinct protocols, each answering a completely different clinical question.
Understanding which one your cardiologist has ordered determines your preparation, the centre you need, and what the results will show.
Type 1 — Myocardial Perfusion PET CT (Rubidium-82 or N-13 Ammonia)
The clinical question it answers: Is my heart muscle receiving adequate blood flow? Are there areas of ischaemia (reduced blood supply) at rest or during stress?
Myocardial perfusion PET using Rubidium-82 or N-13 Ammonia is an accurate method to evaluate rest and stress myocardial perfusion, to detect significant coronary artery disease, and to risk-stratify patients with regard to cardiac event-free survival. ResearchGate
The scan maps blood flow distribution throughout the heart muscle — identifying which territories are well-perfused and which have reduced flow indicating coronary artery disease.
The India availability challenge: Perfusion agents are ultra short-lived and have limited availability in India — only at centres with onsite cyclotron. PubMed
Rubidium-82 has a half-life of 75 seconds and N-13 Ammonia has a half-life of 10 minutes — both require either an onsite cyclotron or a generator at the nuclear medicine centre. Only select nuclear medicine centres in Delhi NCR have this capability. When booking through EVE Healthcare, our team confirms cyclotron availability before your appointment is confirmed.
Type 2 — Myocardial Viability PET CT (FDG Cardiac Protocol)
The clinical question it answers: Is the poorly functioning heart muscle alive and recoverable — or is it permanently scarred (dead)?
This is the cardiac PET CT most commonly performed in India because it uses FDG — available at most nuclear medicine centres without a cyclotron requirement.
FDG PET identifies areas of resting ischaemia of viable, jeopardised myocardium where regional ischaemia has resulted in a shift from fatty acid to glucose metabolism. ResearchGate
The clinical significance of myocardial viability: A patient with a poorly pumping heart (reduced ejection fraction) after a heart attack or long-standing ischaemia may appear to have permanently damaged muscle on echo or stress test. Cardiac FDG PET CT can identify whether that muscle is actually hibernating — still alive but not contracting normally because of chronic reduced blood supply. Hibernating myocardium has a specific FDG uptake pattern: reduced perfusion but preserved or increased glucose metabolism.
The revascularisation decision: If significant viable hibernating myocardium is present — bypass surgery or coronary stenting may improve heart function dramatically. If the territory is scarred — intervention will not improve function. The cardiac FDG viability PET CT is the investigation that informs this decision. It directly affects whether a patient goes for bypass surgery or is managed medically.
Type 3 — Cardiac Sarcoidosis / Cardiac Inflammation PET CT (FDG Cardiac Inflammatory Protocol)
The clinical question it answers: Is there active inflammation in the heart muscle — from sarcoidosis, myocarditis, or other inflammatory conditions including tuberculosis?
The detection of inflammatory myocarditis — the most common being cardiac sarcoidosis — is done with special dietary instructions and FDG as a tracer. This indication is widely used for early detection of myocardial inflammation which would be reversible if treated early. PubMed
Importantly, this protocol uses the OPPOSITE dietary preparation from the viability protocol — a prolonged high-fat, very low carbohydrate preparation to suppress normal myocardial FDG uptake, making areas of inflammation visible against a suppressed background.
The Most Critical Section — Preparation Is Completely Different for Each Protocol
This is the section that prevents the most clinically dangerous preparation error in the entire diagnostic content library.
The same tracer (FDG). The same machine. The completely opposite dietary preparation — depending on whether you are having viability assessment or sarcoidosis/inflammation imaging.
If you follow the wrong preparation for your specific cardiac protocol, the scan produces results that cannot be interpreted — or worse, results that could mislead the clinical decision.
Cardiac Viability FDG PET CT — Preparation
You need glucose in your system. The scan works by stimulating cardiac muscle to take up glucose. Hibernating viable muscle will take up FDG when glucose is loaded. Dead scarred tissue will not.
DO:
- Fast for 4–6 hours before the scan
- Arrive at the centre where the team will administer an oral glucose load (a glucose drink or IV glucose infusion) before the FDG injection — to stimulate myocardial glucose uptake
- Follow the specific glucose loading protocol given by the nuclear medicine centre
DO NOT:
- Follow the standard oncology FDG low-carbohydrate diet preparation
- Arrive having eaten a low-carb meal the night before following standard FDG preparation instructions found online
If you follow the oncology low-carb FDG preparation for a cardiac viability scan — your blood glucose will be low, glucose uptake in the heart will be suppressed, and hibernating viable myocardium may appear falsely non-viable. The scan could lead to a decision against bypass surgery in a patient who would have benefitted from it.
Cardiac Sarcoidosis / Inflammation FDG PET CT — Preparation
You need to suppress glucose in your system. The scan works by making normal myocardium NOT take up FDG — so areas of inflammation stand out against a background of suppressed cardiac uptake.
DO:
- Follow a prolonged high-fat, very low carbohydrate diet for 24–48 hours before the scan
- Fast completely for 12–18 hours before injection
- No sugar, no carbohydrates, no dairy, no caffeine during the preparation period
- This is more restrictive than even the oncology FDG preparation
The Indian food guide for cardiac sarcoidosis preparation: Eat: chicken, fish, eggs, paneer, ghee, butter, green vegetables (no root vegetables) Avoid: all roti, rice, dal, fruit, milk, chai, coffee, any sugar of any type — for 24–48 hours
Myocardial Perfusion PET CT (Rubidium/Ammonia) — Preparation
- Fast for 4–6 hours before the scan
- No caffeine for 24 hours before — caffeine affects coronary blood flow response to the pharmacological stress agent used during the scan
- No theophylline or aminophylline for 48 hours before
- Continue all cardiac medications unless specifically told to hold any by your cardiologist
- No vigorous exercise 24 hours before
The EVE Booking Rule for Cardiac PET CT
Never book a cardiac PET CT without sharing your cardiologist's prescription with EVE Healthcare first.
The reason: the preparation for each cardiac protocol is different, the tracers are different, and the centre requirements are different (cyclotron availability for perfusion tracers). A cardiac PET CT booked with the wrong preparation instructions — or at a centre that does not have the required tracer — is a wasted appointment.
When you book through EVE Healthcare:
- Share your cardiologist's prescription via WhatsApp
- Our team identifies the specific cardiac PET CT protocol
- We confirm centre availability for the required tracer
- We send you the specific preparation instructions for your protocol — not generic FDG instructions
What Cardiac PET CT Shows — The Specific Findings
Myocardial Perfusion (Rubidium/Ammonia):
|
Finding |
What It Means |
|
Normal perfusion at rest and stress |
No significant coronary artery disease in those territories |
|
Reduced perfusion at stress, normal at rest |
Reversible ischaemia — significant coronary artery disease in that territory |
|
Reduced perfusion at both rest and stress |
Fixed defect — may be scar or severe ischaemia |
|
Normal coronary flow reserve |
Good microvascular function |
|
Reduced coronary flow reserve |
Microvascular disease — relevant even without fixed perfusion defect |
Myocardial Viability (FDG Cardiac Protocol):
|
Perfusion Pattern |
FDG Uptake |
Interpretation |
Clinical Significance |
|
Reduced |
Preserved or increased |
Hibernating viable myocardium |
Likely to recover with revascularisation |
|
Reduced |
Also reduced (matched) |
Scar / infarcted tissue |
Will not recover with revascularisation |
|
Normal |
Normal |
Normal viable myocardium |
No action needed |
The mismatch pattern — reduced perfusion with preserved FDG uptake — is the diagnostic finding that identifies patients who benefit from bypass surgery or PCI. This is what the cardiac viability PET CT is specifically designed to find.
Cardiac PET CT vs Echocardiography vs Stress Test — What Each Adds
|
Investigation |
What It Measures |
What It Cannot Do |
|
Echocardiography |
Structure, wall motion, ejection fraction |
Cannot measure perfusion or distinguish hibernation from scar |
|
Stress ECG (TMT) |
Exercise-induced ST changes |
Cannot localise ischaemia, poor sensitivity in some patients |
|
Stress Echo |
Wall motion changes with stress |
Operator-dependent, limited in poor acoustic window |
|
Nuclear SPECT |
Perfusion at rest and stress |
Lower resolution than PET, no absolute flow quantification |
|
Cardiac PET CT |
Perfusion, absolute flow, viability, inflammation |
Requires AERB-licensed centre with tracer availability |
Cardiac PET CT is not a first-line investigation — it is ordered when other tests are equivocal, when a precise viability assessment is needed before a revascularisation decision, or when cardiac sarcoidosis or inflammation is specifically suspected.
Cardiac PET CT Cost in Delhi 2026
|
Protocol |
Tracer |
Cost at Nuclear Medicine Centre (₹) |
Cost at Hospital (₹) |
|
Myocardial Viability |
FDG cardiac protocol |
20,000 – 28,000 |
30,000 – 45,000 |
|
Myocardial Perfusion |
Rubidium-82 |
25,000 – 35,000 |
35,000 – 50,000 |
|
Myocardial Perfusion |
N-13 Ammonia |
25,000 – 35,000 |
35,000 – 50,000 |
|
Cardiac Sarcoidosis / Inflammation |
FDG cardiac inflammatory protocol |
22,000 – 30,000 |
32,000 – 48,000 |
|
Combined Perfusion + Viability |
Rubidium + FDG same day |
30,000 – 45,000 |
45,000 – 65,000 |
All prices from EVE Healthcare partner centres — AERB-licensed nuclear medicine centres in Delhi NCR. Prices verified June 2026. Hospital rates for comparison only.
Why standalone nuclear medicine centres cost less: The diagnostic quality of cardiac PET CT is determined by the scanner hardware, the tracer quality, and the nuclear medicine physician's expertise — not the hospital brand. AERB-licensed standalone nuclear medicine centres in Delhi NCR use equivalent PET/CT scanners at significantly lower overhead costs.
Duration — How Long Does Cardiac PET CT Take?
|
Protocol |
Total Time at Centre |
|
Myocardial Viability (FDG cardiac) |
1.5 – 2.5 hours |
|
Myocardial Perfusion (Rubidium) |
30–45 minutes (rest + stress same session) |
|
Cardiac Sarcoidosis (FDG inflammatory) |
2 – 3 hours |
|
Combined Perfusion + Viability |
3 – 4 hours |
The perfusion PET CT is significantly faster than SPECT because of the shorter half-life of Rubidium — a complete rest and stress myocardial perfusion study with Rubidium can be completed within 30 minutes, compared to 3–4 hours for a standard nuclear SPECT.
Radiation Safety for Cardiac PET CT
Cardiac PET CT involves radiation from both the PET tracer and the CT component.
|
Component |
Approximate Radiation Dose |
|
FDG cardiac protocol (10 mCi dose) |
~7 mSv — whole body dosimetry |
|
Rubidium-82 myocardial perfusion |
~3–5 mSv |
|
CT attenuation correction component |
1–3 mSv |
|
Total typical cardiac PET CT |
8–12 mSv |
For context, 8–12 mSv is equivalent to 3–5 years of natural background radiation in India. For a patient making a revascularisation decision — bypass surgery vs medical management — the diagnostic benefit of cardiac PET CT overwhelmingly outweighs this radiation dose. Your cardiologist and nuclear medicine physician have made this risk-benefit assessment before referring you.
CGHS for Cardiac PET CT
CGHS covers cardiac PET CT at empanelled nuclear medicine centres. Key points:
- Referral must specify the protocol: viability, perfusion, or cardiac sarcoidosis
- A specialist cardiologist referral is required — not just CGHS CMO referral
- Confirm current CGHS rate for cardiac PET CT at the time of booking — rates are updated periodically
- Confirm CGHS empanelment and tracer availability at the specific centre before visiting
EVE Healthcare confirms CGHS empanelment and cardiac tracer availability when you book.
Clinical Note
From the reviewing nuclear medicine physician: Cardiac PET CT in Delhi is most commonly referred for one specific scenario: a patient with known coronary artery disease and reduced ejection fraction where the cardiologist is trying to decide whether bypass surgery will improve heart function. The FDG cardiac viability scan answers this question better than any other non-invasive investigation. The hibernating myocardium pattern — reduced perfusion with preserved FDG uptake — predicts functional recovery after revascularisation with high accuracy. The scar pattern — matched reduction in both perfusion and FDG — predicts that revascularisation will not improve function. The clinical consequence of this distinction is enormous: bypass surgery has real surgical risk. Operating on a patient with all scar and no viable tissue exposes them to surgical risk for no functional benefit. Conversely, declining surgery in a patient with extensive hibernating myocardium means they will remain in heart failure when they could recover. The preparation instruction I emphasise most strongly is this: confirm your preparation protocol directly with the nuclear medicine centre before your appointment. The preparation for cardiac viability FDG is the opposite of the preparation patients find when they google "FDG PET CT preparation." If a cardiac patient follows the standard oncology preparation instructions — low-carb diet, minimal glucose — their viability scan will be compromised. One phone call to confirm the preparation prevents this entirely.
Book Your Cardiac PET CT Scan in Delhi
EVE Healthcare partner nuclear medicine centres offer myocardial viability FDG, myocardial perfusion (Rubidium where available), and cardiac sarcoidosis PET CT across Delhi NCR.
Important: Share your cardiologist's prescription with us before booking. We identify the specific protocol, confirm tracer and cyclotron availability at the appropriate centre, and send you protocol-specific preparation instructions — not generic FDG instructions.
Also see: Whole Body PET CT Scan Cost Delhi → · FDG vs PSMA vs DOTANOC vs DOPA → · How to Prepare for PET CT → · PET CT Scan Cost Delhi → · CGHS PET CT Rate Delhi → · Is PET CT Safe?