Impact of 18F-PSMA-11 PET/CT on Management of Biochemical Recurrence and High-Risk Prostate Cancer Staging : 18F-PSMA-11 PET/CT and Impact on Prostate Cancer Management

Mol Imaging Biol. 2022 Oct;24(5):750-758. doi: 10.1007/s11307-022-01724-2. Epub 2022 Apr 11.

Abstract

Purpose: In this study, we evaluated the impact of 18F-PSMA-11 PET/CT on the patient management plan in patients with primary or recurrent disease. Furthermore, a correlation between PET findings and other modalities was performed.

Procedures: In this prospective observational study, 60 prostate cancer patients (9 primary staging, 51 biochemical recurrence) were imaged with 18F-PSMA-11 PET/CT. Pre- and post-scan questionnaires were completed by the treating physician to observe changes in therapy intent. Follow-up data (histological confirmation, MRI imaging, and PSA values after radiotherapy without implementation of systemic therapy) was correlated with the 18F-PSMA-11 findings.

Results: The patient-based detection rate was 82% and a management change was seen in 52% of the cases. The heterogeneous characteristics of the included patients resulted in a widely varying treatment change, mostly originating from an increase of disease extent on 18F-PSMA-11 PET/CT.

Conclusion: 18F-PSMA-11 PET/CT showed to be a highly promising method for the detection of prostate cancer lesions.

Keywords: 18F-PSMA-11; Human; Management; PET/CT; Prostate cancer.

Publication types

  • Observational Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Gallium Radioisotopes
  • Humans
  • Male
  • Neoplasm Recurrence, Local / diagnostic imaging
  • Positron Emission Tomography Computed Tomography* / methods
  • Prospective Studies
  • Prostate-Specific Antigen
  • Prostatic Neoplasms* / diagnostic imaging
  • Prostatic Neoplasms* / pathology
  • Prostatic Neoplasms* / therapy

Substances

  • Prostate-Specific Antigen
  • (18)F-PSMA-11
  • Gallium Radioisotopes