Prostate cancer patients for whom a F-18-FCH PET/CT is indicated. Ga-68-NODAGA-MJ9 is a new PET/CT radiotracer aiming at giving complementary information : more precise images and early localisation of recurrence to standard imaging

Patient with primary or relapsing prostate cancer for whom F-18-FCH PET/CT is indicated will be proposed to participate to the present study. After signing the patient informed consent, both F-18-FCH and Ga-68-NODAGA-MJ9 PET/CT will be scheduled with a maximum 10 day-interval.

No adverse events are expected.

Inclusion Criteria:

• Age : adult patients
• Karnofsky : ≥ 80%
• Patients with histologically proven prostate cancer for whom 18F-fluocholine PET/CT is indicated for primary cancer staging, or for recurrence with increase of blood PSA. In order to provide a detection probability of 30% or more, a blood PSA 0.5 ng / ml or more in post initial curative intent surgery will be required.
• Signed informed consent.

Exclusion Criteria:

• Lack of discernment to sign the consent form
• Age <18 years
• Patient under hormonal treatment

Patient with proven prostate cancer