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68 Ga-PSMA-11 PET is used to stage patients with prostate cancer. We performed an updated metaanalysis that separates imaging at the time of diagnosis and at the time of biochemical recurrence and focuses on pathology correlation in both populations. Methods: We searched the MEDLINE and EMBASE databases using the PRISMA statement. Quality was assessed using the Quality Assessment of Diagnostic Accuracy Studies tool 2. In total, 1,811 studies were screened, 58 were analyzed, 41 were included for qualitative synthesis, and 29 were included for quantitative analysis. A random-effect model and a hierarchical summary receiver-operating-characteristic model were used to summarize the sensitivity, specificity, positive predictive value (PPV), negative predictive value, and accuracy for pelvic lymph nodes in initial staging compared with pathology at prostatectomy and the PPV for lesions with pathologic correlation in those with biochemical recurrence. We also summarized the detection rate of 68 Ga-PSMA-11 in those with biochemical recurrence stratified by prostate-specific antigen (PSA) at the time of imaging. Results: The metaanalysis of 68 Ga-PSMA-11 at initial staging demonstrated a sensitivity and specificity of 0.74 (95% confidence interval [95% CI], 0.51-0.89) and 0.96 (95% CI, 0.85-0.99), respectively, using nodal pathology at prostatectomy as a gold standard. At biochemical recurrence, the PPV was 0.99 (95% CI, 0.96-1.00). The detection rate was 0.63 (95% CI, 0.55-0.70), with a PSA of less than 2.0 and 0.94 (95% CI, 0.91-0.96) with a PSA of more than 2.0. Conclusion:  68 Ga-PSMA-11 performed well for the localization of metastatic prostate cancer at initial staging and at the time of biochemical recurrence.

Metaanalysis of 68Ga-PSMA-11 PET Accuracy for the Detection of Prostate Cancer Validated by Histopathology

Metaanalysis of ⁶⁸Ga-PSMA-11 PET Accuracy for the Detection of Prostate Cancer Validated by Histopathology