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Akcay K, Kibar A, Sahin OE, Demirbilek M, Beydagi G, Asa S, Aghazada F, Toklu T, Selcuk NA, Onal B, Kabasakal L. Prediction of clinically significant prostate cancer by [ 68 Ga]Ga-PSMA-11 PET/CT: a potential tool for selecting patients for active surveillance. Eur J Nucl Med Mol Imaging 2024; 51:1467-1475. [PMID: 38112777 DOI: 10.1007/s00259-023-06556-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 11/30/2023] [Indexed: 12/21/2023]
Abstract
PURPOSE In our study, our aim was to investigate the role of [68 Ga]Ga-PSMA-11 PET /CT imaging in the diagnosis of clinically significant prostate cancer (csPCa) (ISUP GG 2 and higher) in patients initially diagnosed with ISUP GG 1 and 2 after prostate biopsy. MATERIALS AND METHODS We retrospectively reviewed 147 patient records in whom [68 Ga]Ga-PSMA-11 PET/CT imaging was performed preoperatively. All patients were initially diagnosed with ISUP GG 1 and 2 PCa by biopsy. Final pathology reports were obtained after radical prostatectomy. The [68 Ga]Ga-PSMA-11 PET/CT images were evaluated to determine the PRIMARY score. Patients' mpMRI-PIRADS scores were also recorded when available and analyzed in correlation with the pathology results. RESULTS For the 114 patients scored using PRIMARY, 19 out of 37 patients with scores of 1 and 2 (51%) were diagnosed with csPCa. Of the 77 patients with PRIMARY scores between 3 and 5, 64 (83%) had csPCa. Notably, every patient with a PRIMARY score of 5 had csPCa. PRIMARY scoring had a sensitivity of 77% and specificity of 58%, with a positive predictive value of 83%. A moderate correlation was observed between PRIMARY scores and ISUP GG (Rho = 0.54, p < 0.001). In contrast, the PIRADS score displayed a sensitivity and specificity of 86% and 25% respectively, with a positive predictive value of 68%. No substantial correlation was found between PIRADS and ISUP GG. Statistical analysis revealed a significant correlation between PRIMARY and ISUP GG (p < 0.001), but not between PIRADS and ISUP GG (p = 0.281). Comparatively, PRIMARY scoring was significantly more reliable than PIRADS scoring in identifying csPCa. CONCLUSION [68 Ga]Ga-PSMA-11 PET/CT imaging is promising for distinguishing high-risk prostate cancer patients from those apt for active surveillance, potentially aiding in the identification of csPCa.
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Affiliation(s)
- Kaan Akcay
- Department of Nuclear Medicine, Yeditepe University Medical Faculty, Koşuyolu Mah. Koşuyolu Cad. No: 168, 34718, Kadıköy/Istanbul, Turkey
| | - Ali Kibar
- Department of Nuclear Medicine, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Fatih, Istanbul, 34098, Turkey
| | - Onur Erdem Sahin
- Department of Nuclear Medicine, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Fatih, Istanbul, 34098, Turkey
| | - Muhammet Demirbilek
- Department of Urology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Fatih, Istanbul, 34098, Turkey
| | - Gamze Beydagi
- Department of Nuclear Medicine, Yeditepe University Medical Faculty, Koşuyolu Mah. Koşuyolu Cad. No: 168, 34718, Kadıköy/Istanbul, Turkey
| | - Sertac Asa
- Department of Nuclear Medicine, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Fatih, Istanbul, 34098, Turkey
| | - Fuad Aghazada
- Department of Nuclear Medicine, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Fatih, Istanbul, 34098, Turkey
| | - Turkay Toklu
- Department of Nuclear Medicine, Yeditepe University Medical Faculty, Koşuyolu Mah. Koşuyolu Cad. No: 168, 34718, Kadıköy/Istanbul, Turkey
| | - Nalan Alan Selcuk
- Department of Nuclear Medicine, Yeditepe University Medical Faculty, Koşuyolu Mah. Koşuyolu Cad. No: 168, 34718, Kadıköy/Istanbul, Turkey
| | - Bulent Onal
- Department of Urology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Fatih, Istanbul, 34098, Turkey
| | - Levent Kabasakal
- Department of Nuclear Medicine, Yeditepe University Medical Faculty, Koşuyolu Mah. Koşuyolu Cad. No: 168, 34718, Kadıköy/Istanbul, Turkey.
- Department of Nuclear Medicine, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Fatih, Istanbul, 34098, Turkey.
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Bagheri H, Mahdavi SR, Geramifar P, Neshasteh-Riz A, Sajadi Rad M, Dadgar H, Arabi H, Zaidi H. An Update on the Role of mpMRI and 68Ga-PSMA PET Imaging in Primary and Recurrent Prostate Cancer. Clin Genitourin Cancer 2024; 22:102076. [PMID: 38593599 DOI: 10.1016/j.clgc.2024.102076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/28/2024] [Accepted: 03/09/2024] [Indexed: 04/11/2024]
Abstract
The objective of this work was to review comparisons of the efficacy of 68Ga-PSMA-11 (prostate-specific membrane antigen) PET/CT and multiparametric magnetic resonance imaging (mpMRI) in the detection of prostate cancer among patients undergoing initial staging prior to radical prostatectomy or experiencing recurrent prostate cancer, based on histopathological data. A comprehensive search was conducted in PubMed and Web of Science, and relevant articles were analyzed with various parameters, including year of publication, study design, patient count, age, PSA (prostate-specific antigen) value, Gleason score, standardized uptake value (SUVmax), detection rate, treatment history, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and PI-RADS (prostate imaging reporting and data system) scores. Only studies directly comparing PSMA-PET and mpMRI were considered, while those examining combined accuracy or focusing on either modality alone were excluded. In total, 24 studies comprising 1717 patients were analyzed, with the most common indication for screening being staging, followed by relapse. The findings indicated that 68Ga-PSMA-PET/CT effectively diagnosed prostate cancer in patients with suspected or confirmed disease, and both methods exhibited comparable efficacy in identifying lesion-specific information. However, notable heterogeneity was observed, highlighting the necessity for standardization of imaging and histopathology systems to mitigate inter-study variability. Future research should prioritize evaluating the combined diagnostic performance of both modalities to enhance sensitivity and reduce unnecessary biopsies. Overall, the utilization of PSMA-PET and mpMRI in combination holds substantial potential for significantly advancing the diagnosis and management of prostate cancer.
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Affiliation(s)
- Hamed Bagheri
- Radiation Biology Research Center, Iran University of Medical Science (IUMS), Tehran, Iran
| | - Seyed Rabi Mahdavi
- Radiation Biology Research Center and Department of Medical Physics, Iran University of Medical Sciences, Tehran, Iran.
| | - Parham Geramifar
- Department Nuclear Medicine, School of Medicine Shariati Hospital, Tehran, Iran
| | - Ali Neshasteh-Riz
- Radiation Biology Research Center, Iran University of Medical Science (IUMS), Tehran, Iran
| | - Masoumeh Sajadi Rad
- Radiation Biology Research Center, Iran University of Medical Science (IUMS), Tehran, Iran
| | - Habibollah Dadgar
- Imam Reza research Center, Nuclear Medicine and Molecular imaging department, RAZAVI Hospital, Mashhad, Iran
| | - Hossein Arabi
- Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospital, Geneva, Switzerland
| | - Habib Zaidi
- Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospital, Geneva, Switzerland; Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University 6Medical Center Groningen, Groningen, Netherlands; Department of Nuclear Medicine, University of Southern Denmark, Odense, Denmark; University Research and Innovation Center, Óbuda University, Budapest, Hungary.
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