PSMA PET Before — Prostate Surgery or Radiation

NCCN and ESMO recommend it most clearly for men with high-risk or locally advanced prostate cancer who are planning surgery or radiation. High-risk typically means a high PSA, a high Gleason or ISUP grade, or a large tumour on MRI. For low-risk localised disease, the scan is less likely to change the plan, and your team may reasonably not recommend it. If you are unsure which group you fall into, ask your oncologist to explain the risk classification your cancer has been given.

Finding spread changes the conversation, but it does not close off treatment options. It means the initial plan — surgery or radiation to the prostate alone — needs to be reconsidered. Your team will discuss whether wider radiation fields, systemic treatment, or a combination is more appropriate. In some cases, limited spread can still be treated with curative intent using techniques that extend the treatment field. The scan gives you and your team accurate information to plan with, rather than treating on incomplete data and discovering the gap later.

A standard FDG PET uses a glucose-based tracer that highlights rapidly dividing cells — useful for many cancers but relatively insensitive for prostate cancer, which often does not consume glucose at high rates. PSMA PET uses a tracer that binds specifically to the PSMA protein, which prostate cancer cells express in large quantities. That specificity makes it far more sensitive for detecting prostate cancer deposits, particularly small lymph node metastases. NCCN and ESMO now prefer PSMA PET over FDG PET for prostate cancer staging for this reason.

Yes. No scan finds everything, and PSMA PET is no exception. Very small deposits, and tumours that express low levels of the PSMA protein, can fall below the detection threshold. This is why results are always interpreted alongside your PSA level, your Gleason score, and the clinical picture — not as a standalone definitive answer. A negative PSMA PET in a high-risk patient does not mean the disease is definitely localised; it means no spread was detected at the sensitivity the scan can provide.

The tracer is injected and you wait for it to distribute through the body, usually around an hour. The scan itself takes roughly 20 to 30 minutes. You will be asked to fast for several hours beforehand and to stay well hydrated. Because PSMA PET uses a different tracer to a standard PET, it is done through partner imaging centres that stock it; tracer availability is confirmed at the time of booking. The full process from arrival to leaving typically takes two to three hours.

At CION partner imaging centres, the indicative cost for a PSMA PET-CT is around ₹23,999 as of mid-2026 — treat this as a guide rather than a fixed price, as it varies by centre and date. Most government health schemes in India do not yet cover it routinely, though coverage is evolving; confirm with your specific scheme at the time of booking. The scan replaces both a CT and a bone scan in a single appointment, which is relevant to the cost comparison. Ask about the full cost and what it includes when your team refers you for booking.