Abstract
The objective of this study was to assess the impact of 68Ga-prostate-specific membrane antigen (68Ga-PSMA) PET/CT on the management of prostate cancer in patients with biochemical recurrence (BCR). Methods: Documented management plans before and after 68Ga-PSMA PET/CT in 100 patients with BCR were retrospectively reviewed, and changes in plans were recorded. Results: Management changed after 68Ga-PSMA PET/CT in 39 patients (39%). The management changes occurred in 23 (33.8%) of 68 patients with radical prostatectomy and 16 (50%) of 32 patients previously treated with radical radiotherapy. Positive scan results (P < 0.001) and higher prostate-specific antigen (PSA) levels (P = 0.024) were associated with management changes. No significant association with management change was found for Gleason grade, stage, presence of metastatic disease, PSA velocity, or PSA doubling time. Conclusion:68Ga-PSMA PET/CT altered management in 39% of patients with BCR, and changes occurred more often in patients with radical radiotherapy treatment, positive 68Ga-PSMA scan results, and higher PSA levels.
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