Bone metastasis imaging
F-18 NaF Bone PET: — A Better Bone Scan?
F-18 NaF Bone PET uses the same scanner as an FDG PET but with a tracer that goes only to bone. It detects more bone lesions than a conventional bone scan in the settings where it is established. Whether the difference matters for your treatment is what your oncologist is weighing when they recommend one over the other.
Medically reviewed by Dr. Bharati Devi Gorantla, Medical Oncologist, MBBS · MD · DM (Adyar, Chennai) · ECMO · MRCP SCE (UK) · Last reviewed September 2026
- Higher sensitivity — F-18 NaF PET detects more bone lesions than a conventional Tc-99m bone scan, according to NCCN and EANM guidance.
- Shorter appointment — The full visit takes one to two hours rather than three to five for a conventional bone scan.
- Bone only — F-18 NaF does not assess soft tissue, lymph nodes, or organs — it is a bone-specific tracer.
- Established for specific cancers — Evidence is strongest for prostate and breast cancer bone staging. Use in other cancer types is an active area of research.
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F-18 NaF PET is more sensitive than a conventional Tc-99m bone scan for detecting bone metastases, according to NCCN and EANM guidance. It uses PET technology, which gives sharper images in a shorter appointment. The evidence is strongest in prostate and breast cancer. Whether it changes your management is a question for your oncologist.
CION does PET-CT in Hyderabad from Rs 10,499 — among the lowest published prices in the city, with no hidden charges. Indicative price, as of September 2026.
How does F-18 NaF Bone PET compare with a conventional bone scan?
| Feature | Conventional Bone Scan (Tc-99m) | F-18 NaF Bone PET |
|---|---|---|
| Scanner technology | SPECT gamma camera | PET/CT scanner |
| What it detects | Areas of increased bone turnover | Areas of increased bone turnover — taken up more avidly than Tc-99m |
| Sensitivity for bone metastases | Moderate — established standard for decades | Higher — endorsed by NCCN and EANM guidance |
| Spatial resolution | Lower — small lesions may not be visible | Higher — smaller lesions are detectable |
| Soft tissue assessment | Not assessed | Not assessed — bone only |
| Total appointment | Three to five hours (wait after injection before scan) | One to two hours |
| Availability | Most nuclear medicine centres | Specialist PET centres — limited availability |
| Indicative cost (2026) | Lower — varies by centre | Around ₹23,999 at CION partner centres |
Why does F-18 NaF PET detect more than a conventional bone scan?
Both tracers travel to areas of active bone turnover, but F-18 NaF is taken up more avidly by bone and clears from surrounding soft tissue faster. This leaves a cleaner, higher-contrast signal. PET cameras also capture images at higher spatial resolution than the SPECT cameras used in conventional bone scans, so smaller areas of bone involvement become visible.
Whether detecting a lesion earlier changes your treatment plan depends on your cancer type, stage, and what decision your team is making at the time of the scan. Your oncologist, not the scan alone, decides whether the upgrade is relevant for you.
F-18 NaF does not detect soft tissue disease. If your team needs to assess both bone and soft tissue in the same appointment, FDG PET/CT or PSMA PET/CT may give more complete information.
PET-CT Partner Centres
PET-CT Scan Centres in Hyderabad
CION offers PET-CT scans through 4 trusted partner PET-CT centres across Hyderabad, so you can choose the one closest to you. Call 18002028726 and we’ll guide you to the earliest available appointment.
PET-CT Centre — Punjagutta
PET-CT Centre — Himayatnagar
PET-CT Centre — Narayanaguda
These are partner diagnostic centres within the CION network. Toll-free booking: 18002028726.
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MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
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Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
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Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
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When is it worth asking your oncologist about F-18 NaF Bone PET?
- You have prostate or breast cancer and your team is deciding whether bone involvement changes the treatment plan
- A conventional bone scan gave an uncertain or equivocal result
- You have bone pain that a previous scan did not explain
- Your team is monitoring known bone metastases for response to treatment
- Orthopaedic implants or a recent fracture made the conventional scan difficult to interpret
Which uses are established and which are still being studied?
F-18 NaF Bone PET is an established investigation for detecting and monitoring bone metastases in prostate and breast cancer. NCCN and EANM guidance supports its use in these settings when bone staging is expected to change management.
Use in other cancer types — including lung, kidney, and thyroid cancers — is an active area of research. Evidence is accumulating but less mature, and your oncologist will tell you whether the current evidence supports it for your specific situation.
At CION partner imaging centres, this scan is available at an indicative price of around ₹23,999 (2026). The tracer is prepared on the day of your appointment. Your CION team will coordinate the booking and confirm availability at your nearest partner centre.
A whole-body PET-CT at CION is Rs 10,499 — among the lowest published prices in Hyderabad — with a free Rs 950 oncologist consultation to talk through your report. Indicative price, as of September 2026.
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Common questions
Frequently asked questions
Is F-18 NaF Bone PET actually better than a conventional bone scan?
For detecting bone metastases, F-18 NaF PET is more sensitive than a conventional Tc-99m bone scan, according to NCCN and EANM. Whether that makes it better depends on what your team is deciding. If your plan already accounts for bone involvement, a more sensitive scan may not change anything. Your oncologist will weigh whether the upgrade is relevant for your cancer type and situation.
How long does the F-18 NaF Bone PET appointment take?
The full visit is usually one to two hours. You receive the injection, wait around 45 to 60 minutes while the tracer reaches the bone, and then the scan itself takes approximately 20 to 30 minutes. This is considerably shorter than a conventional bone scan, where you wait two to three hours after injection before imaging can begin.
What does F-18 NaF PET find that a regular bone scan might miss?
Smaller areas of bone involvement, mainly because PET cameras have higher spatial resolution than the SPECT cameras used in conventional bone scanning. F-18 NaF is also taken up more avidly by bone and clears from surrounding tissue faster, producing a cleaner signal. The practical question is whether finding those smaller lesions changes your treatment — and that depends on your oncologist's assessment.
How much does F-18 NaF Bone PET cost?
At CION partner imaging centres, the indicative cost is around ₹23,999 (2026, subject to change). This is a specialist PET tracer prepared on the day of your appointment, which is why it is available only at PET centres rather than every nuclear medicine facility. Your CION team can confirm the current price and coordinate the booking at the partner centre nearest to you.
Which cancers is F-18 NaF Bone PET most established for?
Prostate and breast cancer are where the evidence is strongest and NCCN and EANM guidance is most explicit. In these cancers, bone staging frequently changes treatment decisions, and the improved sensitivity of F-18 NaF PET is well supported. Use in other cancer types — lung, kidney, thyroid, and others — is being actively studied, and the evidence base is still maturing.
Can F-18 NaF Bone PET replace my FDG PET scan?
No — they serve different purposes. F-18 NaF is bone-specific and shows areas of increased bone turnover only. FDG PET/CT shows metabolically active tissue throughout the body, including soft tissue, lymph nodes, and organs. For most cancers, your team needs the whole picture, which F-18 NaF alone cannot provide. Whether you need one, the other, or both depends on your cancer type and what your team needs to assess.