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Li Y, Wang S, Zhao S, Zhao P, Huang S, Li K, Han S, Tian C, Li X, Shi B, Li X. Initial [18F]DCFPyL PET/CT in treatment-naïve prostate cancer: correlation with post-ADT PSA outcomes and recurrence. Eur J Nucl Med Mol Imaging 2024; 51:2458-2466. [PMID: 38563882 DOI: 10.1007/s00259-024-06684-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/10/2024] [Indexed: 04/04/2024]
Abstract
PURPOSE Positron emission tomography (PET) with prostate-specific membrane antigen (PSMA) targeting tracers has emerged as a valuable diagnostic tool for prostate cancer (PCa), androgen deprivation therapy (ADT) stands as the cornerstone treatment for advanced PCa, yet forecasting the response to hormonal therapy poses a significant clinical hurdle. METHODS In a prospective cohort of 86 PCa patients undergoing short-term ADT, this study evaluated the prognostic potential of [18F]DCFPyL PET/CT scans. Comprehensive data encompassing clinical profiles, baseline prostate-specific antigen (PSA) levels, and imaging metrics were assessed. We developed predictive models for assessing decreases in PSA levels (PSA50 and PSA70) based on a combination of PET-related parameters and clinical factors. Kaplan-Meier survival analysis was utilized to ascertain the prognostic value of PET-based metrics. RESULTS In this study, elevated [18F]DCFPyL uptake within the primary tumor, as indicated by a SUV ≥ 6.78 (p = 0.0024), and a reduction in the tumor volume (TV) of primary PSMA-avid tumor with PSMA-TV < 41.96 cm3 (p = 0.038), as well as an increased burden of metastatic PSMA-avid tumor, with PSMA-TV (PSMA-TV ≥ 71.39 cm3) (p = 0.012) were identified in association with diminished progression-free survival (PFS). PET and clinical parameters demonstrated constrained predictive capacity for PSA50 response as indicated by an area under the curve (AUC) of 0.442. CONCLUSION Our study revealed that pretreatment [18F]DCFPyL uptake in primary or metastatic tumor sites is prognostically relevant in high-risk PCa patients undergoing ADT. Further research is needed to develop robust predictive models in this multifaceted landscape of PCa management.
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Affiliation(s)
- Yuekai Li
- Department of Nuclear Medicine, Qilu Hospital of Shandong University, No. 107, Cultural West Road, Jinan, 250012, China
| | - Shiwei Wang
- Evomics Medical Technology Co., Ltd, Shanghai, China
| | - Shimin Zhao
- Department of Radiology, Rizhao Hospital of Traditional Chinese Medicine, No. 35 Wanghai Road, Rizhao, 276800, China
| | - Pengfei Zhao
- Department of Nuclear Medicine, Jinan Yaoying Medical Imaging Center, Jinan, 250012, China
| | - Shuai Huang
- Department of Nuclear Medicine, Qilu Hospital of Shandong University, No. 107, Cultural West Road, Jinan, 250012, China
| | - Kaiyue Li
- Department of Nuclear Medicine, Qilu Hospital of Shandong University, No. 107, Cultural West Road, Jinan, 250012, China
| | - Shaoli Han
- Evomics Medical Technology Co., Ltd, Shanghai, China
| | - Caixia Tian
- Evomics Medical Technology Co., Ltd, Shanghai, China
| | - Xin Li
- Department of Nuclear Medicine, Qilu Hospital of Shandong University, No. 107, Cultural West Road, Jinan, 250012, China.
| | - Benkang Shi
- Department of Urology, Qilu Hospital of Shandong University, No. 107, Cultural West Road, Jinan, 250012, China.
| | - Xiang Li
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-guided Therapy, Vienna General Hospital, Medical University of Vienna, Vienna, Austria.
- Department of Nuclear Medicine, Beijing Chest Hospital, Beijing, China.
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Alberts IL, Seifert R, Werner RA, Rowe SP, Afshar-Oromieh A. Prostate-specific Membrane Antigen: Diagnostics. PET Clin 2024; 19:351-362. [PMID: 38702228 DOI: 10.1016/j.cpet.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2024]
Abstract
Since its clinical introduction in May 2011, prostate-specific membrane antigen (PSMA)-PET/computed tomography has quickly gained worldwide recognition as a significant breakthrough in prostate cancer diagnostics. In the meantime, several new PSMA radioligands for PET imaging have been introduced into routine clinical practice. This article aims to introduce the most commonly used tracers and their key areas of application.
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Affiliation(s)
- Ian L Alberts
- Molecular Imaging and Therapy, BC Cancer - Vancouver, 600 West 10th Avenue, Vancouver, British Columbia V5Z 1H5, Canada
| | - Robert Seifert
- University Clinic for Nuclear Medicine, Inselspital, University Hospital of Bern, Bern, Switzerland
| | - Rudolf A Werner
- Department of Nuclear Medicine, University Hospital Würzburg, Oberdürrbacherstr. 6, 97080 Würzburg, Germany; Division of Nuclear Medicine, Department of Diagnostic and Interventional Radiology and Nuclear Medicine, Goethe University Frankfurt, University Hospital, Germany
| | - Steven P Rowe
- Molecular Imaging and Therapeutics, Department of Radiology, University of North Carolina, Chapel Hill, NC, USA
| | - Ali Afshar-Oromieh
- University Clinic for Nuclear Medicine, Inselspital, University Hospital of Bern, Bern, Switzerland.
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Arıkan MG, Soyluoğlu S, Korkmaz Ü, Taştekin E, Elboğa U, Arda E. Correlation between pre-radical prostatectomy standardized SUVmax ratios detected on 68Ga-PSMA-I&T PET/CT and final histopathology outcomes: an in-depth analysis. Rev Esp Med Nucl Imagen Mol 2024; 43:100-106. [PMID: 38331250 DOI: 10.1016/j.remnie.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/27/2023] [Accepted: 01/02/2024] [Indexed: 02/10/2024]
Abstract
OBJECTIVE To evaluate the predictive potential of the maximum standardized uptake value(SUVmax) value of intraprostatic tumors derived from preoperative 68Ga-PSMA-I&T PET/CT (SUVT), and its ratios to SUVmax in the liver (SUVTLR) and parotid gland (SUVTPR) with respect to histopathological findings. MATERIALS AND METHODS Data from patients who underwent radical prostatectomy (RP) for prostate cancer (PC) at our clinic between 2017 and 2020 were assessed. Patients with a secondary malignancy, a history of transurethral prostate resection, prior treatment for PC, or who received salvage RP were excluded. Whole-body images obtained using the same device, as per the guidelines, were reviewed by two nuclear medicine specialists with more than a decade of experience to reach a consensus for each lesion. The relationships between age, PSA, Prostate Volume, clinical T stage, biopsy International Society of Urological Pathology grade (ISUP), D'amico risk group, intraprostatic tumor volume (HPTV) identified in the final histopathological specimen review, HP-ISUP grade, seminal vesicle invasion (SVI), extracapsular invasion (ECI), positive surgical margine (PSM), SUVT, SUVTLR, and SUVTPR were analyzed. RESULTS The mean age of the 64 included patients was 64.1 ± 5.3. A statistically significant correlation was found between SUVT, SUVTLR, SUVTPR values, and histopathologic stage parameters, such as biopsy ISUP, D'amico Risk Classification, HP-ISUP, HPTV (p < 0.05). PSMATV, SUVT, and SUVTLR were statistically significant predictors of extracapsular invasion, while PSA, PSMATV, and SUVTLR were significant predictors of SVI (p < 0.05). CONCLUSION The standardized SUVT, SUVTLR, and SUVTPR values could be employed as noninvasive markers to assist in predicting postoperative histopathological findings, particularly ECI, SVI, and PSM.
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Affiliation(s)
- M G Arıkan
- Hatay Dörtyol State Hospital, Urology Clinic, Hatay, Turkey.
| | - S Soyluoğlu
- Trakya University School of Medicine, Department of Nuclear Medicine, Edirne, Turkey.
| | - Ü Korkmaz
- Trakya University School of Medicine, Department of Nuclear Medicine, Edirne, Turkey.
| | - E Taştekin
- Trakya University School of Medicine, Department of Pathology, Edirne, Turkey.
| | - U Elboğa
- Gaziantep University School of Medicine, Department of Nuclear Medicine, Gaziantep, Turkey.
| | - E Arda
- Trakya University School of Medicine, Department of Urology, Edirne, Turkey.
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Sood A, Kishan AU, Evans CP, Feng FY, Morgan TM, Murphy DG, Padhani AR, Pinto P, Van der Poel HG, Tilki D, Briganti A, Abdollah F. The Impact of Positron Emission Tomography Imaging and Tumor Molecular Profiling on Risk Stratification, Treatment Choice, and Oncological Outcomes of Patients with Primary or Relapsed Prostate Cancer: An International Collaborative Review of the Existing Literature. Eur Urol Oncol 2024; 7:27-43. [PMID: 37423774 DOI: 10.1016/j.euo.2023.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 05/06/2023] [Accepted: 06/07/2023] [Indexed: 07/11/2023]
Abstract
CONTEXT The clinical introduction of next-generation imaging methods and molecular biomarkers ("radiogenomics") has revolutionized the field of prostate cancer (PCa). While the clinical validity of these tests has thoroughly been vetted, their clinical utility remains a matter of investigation. OBJECTIVE To systematically review the evidence to date on the impact of positron emission tomography (PET) imaging and tissue-based prognostic biomarkers, including Decipher, Prolaris, and Oncotype Dx, on the risk stratification, treatment choice, and oncological outcomes of men with newly diagnosed PCa or those with biochemical failure (BCF). EVIDENCE ACQUISITION We performed a quantitative systematic review of the literature using the MEDLINE, EMBASE, and Web of Science databases (2010-2022) following the Preferred Reporting Items for Systematic Reviews and Meta-analyses statement guidelines. The validated Quality Assessment of Diagnostic Accuracy Studies 2 scoring system was used to assess the risk of bias. EVIDENCE SYNTHESIS A total of 148 studies (130 on PET and 18 on biomarkers) were included. In the primary PCa setting, prostate-specific membrane antigen (PSMA) PET imaging was not useful in improving T staging, moderately useful in improving N staging, but consistently useful in improving M staging in patients with National Comprehensive Cancer Network (NCCN) unfavorable intermediate- to very-high-risk PCa. Its use led to a management change in 20-30% of patients. However, the effect of these treatment changes on survival outcomes was not clear. Similarly, biomarkers in the pretherapy primary PCa setting increased and decreased the risk, respectively, in 7-30% and 32-36% of NCCN low-risk and 31-65% and 4-15% of NCCN favorable intermediate-risk patients being considered for active surveillance. A change in management was noted in up to 65% of patients, with the change being in line with the molecular risk-based reclassification, but again, the impact of these changes on survival outcomes remained unclear. Notably, in the postsurgical primary PCa setting, biomarker-guided adjuvant radiation therapy (RT) was associated with improved oncological control: Δ↓ 2-yr BCF by 22% (level 2b). In the BCF setting, the data were more mature. PSMA PET was consistently useful in improving disease localization-Δ↑ detection for T, N, and M staging was 13-32%, 19-58%, and 9-29%, respectively. Between 29% and 73% of patients had a change in management. Most importantly, these management changes were associated with improved survival outcomes in three trials: Δ↑ 4-yr disease-free survival by 24.3%, Δ↑ 6-mo metastasis-free survival (MFS) by 46.7%, and Δ↑ androgen deprivation therapy-free survival by 8 mo in patients who received PET-concordant RT (level 1b-2b). Biomarker testing in these patients also appeared to be helpful in risk stratifying and guiding the use of early salvage RT (sRT) and concomitant hormonal therapy. Patients with high-genomic-risk scores benefitted from treatment intensification: Δ↑ 8-yr MFS by 20% with the use of early sRT and Δ↑ 12-yr MFS by 11.2% with the use of hormonal therapy alongside early sRT, while low-genomic-risk score patients did equally well with initial conservative management (level 3). CONCLUSIONS Both PSMA PET imaging and tumor molecular profiling provide actionable information in the management of men with primary PCa and those with BCF. Emerging data suggest that radiogenomics-guided treatments translate into direct survival benefits for patients, however, additional prospective data are awaited. PATIENT SUMMARY In this review, we evaluated the utility of prostate-specific membrane antigen positron emission tomography and tumor molecular profiling in guiding the care of men with prostate cancer (PCa). We found that these tests augmented risk stratification, altered management, and improved cancer control in men with a new diagnosis of PCa or for those experiencing a relapse.
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Affiliation(s)
- Akshay Sood
- Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Urology, The James Cancer Hospital and Solove Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
| | - Amar U Kishan
- Department of Radiation Oncology and Urology, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA
| | - Christopher P Evans
- Department of Urologic Surgery, University of California Davis, Sacramento, CA, USA
| | - Felix Y Feng
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
| | - Todd M Morgan
- Department of Urology, University of Michigan, Ann Arbor, MI, USA
| | - Declan G Murphy
- Department of Genitourinary Oncology, Peter MacCallum Cancer Centre, The University of Melbourne, Victoria, Australia
| | - Anwar R Padhani
- Paul Strickland Scanner Centre, Mount Vernon Cancer Centre, Northwood, Middlesex, UK
| | - Peter Pinto
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Henk G Van der Poel
- Department of Urology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Derya Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany; Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany; Department of Urology, Koc University Hospital, Istanbul, Turkey
| | - Alberto Briganti
- Department of Urology, IRCCS San Raffaele Hospital, Milan, Italy
| | - Firas Abdollah
- Vattikuti Urology Institute, Henry Ford Hospital, Detroit, MI, USA.
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Kreissl MC. Comments on Study of "Performance of 18F-DCFPyL PET/CT in Primary Prostate Cancer Diagnosis, Gleason Grading and D'Amico Classification: A Radiomics-Based Study". PHENOMICS (CHAM, SWITZERLAND) 2023; 3:639-641. [PMID: 38223682 PMCID: PMC10781652 DOI: 10.1007/s43657-023-00143-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 01/16/2024]
Affiliation(s)
- Michael C. Kreissl
- Division of Nuclear Medicine, Department of Radiology and Nuclear Medicine, Otto von Guericke University, Leipziger Str. 44, 39120 Magdeburg, Germany
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Li Y, Li F, Han S, Ning J, Su P, Liu J, Qu L, Huang S, Wang S, Li X, Li X. Performance of 18F-DCFPyL PET/CT in Primary Prostate Cancer Diagnosis, Gleason Grading and D'Amico Classification: A Radiomics-Based Study. PHENOMICS (CHAM, SWITZERLAND) 2023; 3:576-585. [PMID: 38223686 PMCID: PMC10781655 DOI: 10.1007/s43657-023-00108-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 04/06/2023] [Accepted: 04/13/2023] [Indexed: 01/16/2024]
Abstract
This study aimed to investigate the performance of 18F-DCFPyL positron emission tomography/computerized tomography (PET/CT) models for predicting benign-vs-malignancy, high pathological grade (Gleason score > 7), and clinical D'Amico classification with machine learning. The study included 138 patients with treatment-naïve prostate cancer presenting positive 18F-DCFPyL scans. The primary lesions were delineated on PET images, followed by the extraction of tumor-to-background-based general and higher-order textural features by applying five different binning approaches. Three layer-machine learning approaches were used to identify relevant in vivo features and patient characteristics and their relative weights for predicting high-risk malignant disease. The weighted features were integrated and implemented to establish individual predictive models for malignancy (Mm), high path-risk lesions (by Gleason score) (Mgs), and high clinical risk disease (by amico) (Mamico). The established models were validated in a Monte Carlo cross-validation scheme. In patients with all primary prostate cancer, the highest areas under the curve for our models were calculated. The performance of established models as revealed by the Monte Carlo cross-validation presenting as the area under the receiver operator characteristic curve (AUC): 0.97 for Mm, AUC: 0.73 for Mgs, AUC: 0.82 for Mamico. Our study demonstrated the clinical potential of 18F-DCFPyL PET/CT radiomics in distinguishing malignant from benign prostate tumors, and high-risk tumors, without biopsy sampling. And in vivo 18F-DCFPyL PET/CT can be considered a noninvasive tool for virtual biopsy for personalized treatment management. Supplementary Information The online version contains supplementary material available at 10.1007/s43657-023-00108-y.
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Affiliation(s)
- Yuekai Li
- Department of Nuclear Medicine, Qilu Hospital of Shandong University, No. 107, Cultural West Road, Jinan, 250012 China
| | - Fengcai Li
- Department of Hepatology, Qilu Hospital of Shandong University, Wenhuaxi Road 107#, Jinan, 250012 China
| | - Shaoli Han
- Evomics Medical Technology Co., Ltd, Shanghai, 201203 China
| | - Jing Ning
- Evomics Medical Technology Co., Ltd, Shanghai, 201203 China
| | - Peng Su
- Department of Nuclear Medicine, Qilu Hospital of Shandong University, No. 107, Cultural West Road, Jinan, 250012 China
| | - Jianfeng Liu
- Department of Nuclear Medicine, Qilu Hospital of Shandong University, No. 107, Cultural West Road, Jinan, 250012 China
| | - Lili Qu
- Department of Nuclear Medicine, Qilu Hospital of Shandong University, No. 107, Cultural West Road, Jinan, 250012 China
| | - Shuai Huang
- Department of Nuclear Medicine, Qilu Hospital of Shandong University, No. 107, Cultural West Road, Jinan, 250012 China
| | - Shiwei Wang
- Evomics Medical Technology Co., Ltd, Shanghai, 201203 China
| | - Xin Li
- Department of Nuclear Medicine, Qilu Hospital of Shandong University, No. 107, Cultural West Road, Jinan, 250012 China
| | - Xiang Li
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Vienna General Hospital, Medical University of Vienna, 1090 Vienna, Austria
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Kim D, Lim B, Suh J, You D, Jeong IG, Hong JH, Ahn H. Clinical Significance of Radical Prostatectomy in Clinical Lymph Node Metastasis in Prostate Cancer. Ann Surg Oncol 2023; 30:7903-7909. [PMID: 37689608 DOI: 10.1245/s10434-023-14137-4] [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: 03/30/2023] [Accepted: 07/26/2023] [Indexed: 09/11/2023]
Abstract
BACKGROUND This study aimed to investigate the role of radical prostatectomy (RP) among clinical nodal metastasis prostate cancer and whether histological confirmation of lymph node metastasis through surgery can help with treatment. PATIENTS AND METHODS After excluding patients with distant metastatic prostate cancer or neoadjuvant androgen deprivation therapy, 42 patients with clinical nodal metastasis who underwent RP at our institution were included in the study. We classified them as having or not having pathological lymph node metastasis. Clinicopathologic data were analyzed in this retrospective chart review. Kaplan-Meier analysis was used to calculate the estimated castration-resistant prostate cancer (CRPC)-free survival, biochemical recurrence (BCR)-free survival, and cancer-specific survival (CSS). RESULTS There is no significant difference in age, presence of diabetes mellitus, hypertension, BCR time, CRPC time, overall survival, salvage RT rate, and initial prostate-specific antigen level between the two groups. However, there is a significant difference in the pathology N1 group in terms of pathological T stage, pathologic Gleason score, BCR rate, CRPC rate, and CSS. A multivariate Cox proportional hazard regression analysis was used to identify predictors of CRPC-free survival. Patients with pathological lymph node metastasis had a shorter CRPC-free survival [hazard ratio (HR) 4.87; 95% confidence interval (CI) 1.25-19.00, p = 0.02]. CONCLUSION Radical prostatectomy can confirm lymph node metastasis. Although pathologic diagnosis has no effect on time to BCR and CPRC, because it affects BCR rate, CRPC rate, and CSS, an accurate pathological diagnosis obtained through surgery is beneficial in the treatment of clinical lymph node metastasis prostate cancer.
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Affiliation(s)
- Dongwon Kim
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Bumjin Lim
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| | - Jungyo Suh
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dalsan You
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - In Gab Jeong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jun Hyuk Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hanjong Ahn
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Chow KM, So WZ, Lee HJ, Lee A, Yap DWT, Takwoingi Y, Tay KJ, Tuan J, Thang SP, Lam W, Yuen J, Lawrentschuk N, Hofman MS, Murphy DG, Chen K. Head-to-head Comparison of the Diagnostic Accuracy of Prostate-specific Membrane Antigen Positron Emission Tomography and Conventional Imaging Modalities for Initial Staging of Intermediate- to High-risk Prostate Cancer: A Systematic Review and Meta-analysis. Eur Urol 2023; 84:36-48. [PMID: 37032189 DOI: 10.1016/j.eururo.2023.03.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 02/01/2023] [Accepted: 03/02/2023] [Indexed: 04/11/2023]
Abstract
CONTEXT Whether prostate-specific membrane antigen positron emission tomography (PSMA-PET) should replace conventional imaging modalities (CIM) for initial staging of intermediate-high risk prostate cancer (PCa) requires definitive evidence on their relative diagnostic abilities. OBJECTIVE To perform head-to-head comparisons of PSMA-PET and CIM including multiparametric magnetic resonance imaging (mpMRI), computed tomography (CT) and bone scan (BS) for upfront staging of tumour, nodal, and bone metastasis. EVIDENCE ACQUISITION A search of the PubMed, EMBASE, CENTRAL, and Scopus databases was conducted from inception to December 2021. Only studies in which patients underwent both PSMA-PET and CIM and imaging was referenced against histopathology or composite reference standards were included. Quality was assessed using the Quality Assessment of Diagnostic Accuracy Studies-2 (QUADAS-2) checklist and its extension for comparative reviews (QUADAS-C). Pairwise comparisons of the sensitivity and specificity of PSMA-PET versus CIM were performed by adding imaging modality as a covariate to bivariate mixed-effects meta-regression models. The likelihood ratio test was applied to determine whether statistically significant differences existed. EVIDENCE SYNTHESIS A total of 31 studies (2431 patients) were included. PSMA-PET/MRI was more sensitive than mpMRI for detection of extra-prostatic extension (78.7% versus 52.9%) and seminal vesicle invasion (66.7% versus 51.0%). For nodal staging, PSMA-PET was more sensitive and specific than mpMRI (73.7% versus 38.9%, 97.5% versus 82.6%) and CT (73.2% versus 38.5%, 97.8% versus 83.6%). For bone metastasis staging, PSMA-PET was more sensitive and specific than BS with or without single-photon emission computerised tomography (98.0% versus 73.0%, 96.2% versus 79.1%). A time interval between imaging modalities >1 month was identified as a source of heterogeneity across all nodal staging analyses. CONCLUSIONS Direct comparisons revealed that PSMA-PET significantly outperforms CIM, which suggests that PSMA-PET should be used as a first-line approach for the initial staging of PCa. PATIENT SUMMARY We reviewed direct comparisons of the ability of a scan method called PSMA-PET (prostate-specific membrane antigen positron emission tomography) and current imaging methods to detect the spread of prostate cancer outside the prostate gland. We found that PSMA-PET is more accurate for detection of the spread of prostate cancer to adjacent tissue, nearby lymph nodes, and bones.
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Affiliation(s)
- Kit Mun Chow
- YLL School of Medicine, National University of Singapore, Singapore
| | - Wei Zheng So
- YLL School of Medicine, National University of Singapore, Singapore
| | - Han Jie Lee
- Department of Urology, Singapore General Hospital, Singapore
| | - Alvin Lee
- Department of Urology, Singapore General Hospital, Singapore
| | | | - Yemisi Takwoingi
- Institute of Applied Health Research, University of Birmingham, Birmingham, UK; NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
| | - Kae Jack Tay
- Department of Urology, Singapore General Hospital, Singapore
| | - Jeffrey Tuan
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
| | - Sue Ping Thang
- Department of Nuclear Medicine, Singapore General Hospital, Singapore
| | - Winnie Lam
- Department of Nuclear Medicine, Singapore General Hospital, Singapore
| | - John Yuen
- Department of Urology, Singapore General Hospital, Singapore
| | - Nathan Lawrentschuk
- Department of Urology and Department of Surgery, Royal Melbourne Hospital, University of Melbourne, Melbourne, Australia; EJ Whitten Prostate Cancer Research Centre at Epworth, Melbourne, Australia
| | - Michael S Hofman
- Prostate Cancer Theranostics and Imaging Centre of Excellence, Molecular Imaging and Therapeutic Nuclear Medicine, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Declan G Murphy
- Department of Urology, Peter MacCallum Cancer Centre, Melbourne, Australia; Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Kenneth Chen
- Department of Urology, Singapore General Hospital, Singapore.
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Burgard C, Rosar F, Marlowe RJ, Bartholomä M, Dewes S, Schaefer-Schuler A, Linxweiler J, Khreish F, Ezziddin S. Tumor Sink Effect with Prostate-Specific Membrane Antigen-Targeted Theranostics in Patients with Metastatic Castration-Resistant Prostate Cancer: Intra-Individual Evaluations. Cancers (Basel) 2023; 15:cancers15092592. [PMID: 37174058 PMCID: PMC10177482 DOI: 10.3390/cancers15092592] [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: 03/24/2023] [Revised: 04/25/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
"Tumor sink effects", decreased physiological uptake of radiopharmaceuticals due to sequestration by a tumor, may impact radioligand therapy (RLT) toxicity and dosing. We investigated these effects with prostate-specific membrane antigen (PSMA)-targeted radiopharmaceuticals in the healthy organs-at-risk (the parotid glands, kidneys, liver, and spleen) of 33 patients with metastatic castration-resistant prostate cancer (mCRPC). We retrospectively performed three intra-individual comparisons. First, we correlated changes from baseline to post-RLT (after two 177-lutetium (177Lu)-PSMA-617 cycles) in total lesional PSMA (∆TLP) and organ mean standardized uptake values (∆SUVmean). Second, in 25 RLT responders, we compared the organ SUVmean post-RLT versus that at baseline. Lastly, we correlated the baseline TLP and organ SUVmean. Data were acquired via 68-gallium-PSMA-11 positron emission tomography before the first and after the second 177Lu-PSMA-617 cycle. In the parotid glands and spleen, ∆TLP and ∆SUVmean showed a significant inverse correlation (r = -0.40, p = 0.023 and r = -0.36, p = 0.042, respectively). Additionally, in those tissues, the median organ SUVmean rose significantly from baseline after the response to RLT (p ≤ 0.022), and the baseline TLP and SUVmean were significantly negatively correlated (r = -0.44, p = 0.01 and r = -0.42, p = 0.016, respectively). These observations suggest tumor sink effects with PSMA-targeted radiopharmaceuticals in the salivary glands and spleen of patients with mCRPC.
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Affiliation(s)
- Caroline Burgard
- Department of Nuclear Medicine, Saarland University-Medical Center, 66421 Homburg, Germany
| | - Florian Rosar
- Department of Nuclear Medicine, Saarland University-Medical Center, 66421 Homburg, Germany
| | | | - Mark Bartholomä
- Department of Nuclear Medicine, Saarland University-Medical Center, 66421 Homburg, Germany
| | - Sebastian Dewes
- Department of Nuclear Medicine, Saarland University-Medical Center, 66421 Homburg, Germany
| | | | - Johannes Linxweiler
- Department of Urology, Saarland University-Medical Center, 66421 Homburg, Germany
| | - Fadi Khreish
- Department of Nuclear Medicine, Saarland University-Medical Center, 66421 Homburg, Germany
| | - Samer Ezziddin
- Department of Nuclear Medicine, Saarland University-Medical Center, 66421 Homburg, Germany
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Adiyat KT, Pooleri GK, Cherian DT, Santhamma SGN, Ravichandran K, Sundaram S. Negative predictive value of PSMA PET scan for lymph node staging in patients undergoing robotic radical prostatectomy and pelvic lymph node dissection. Int Urol Nephrol 2023; 55:1453-1457. [PMID: 37086333 DOI: 10.1007/s11255-023-03595-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 04/09/2023] [Indexed: 04/23/2023]
Abstract
PURPOSE To assess the negative predictive value of PSMA PET scan for lymph node staging in patients undergoing robotic radical prostatectomy and pelvic lymph node dissection. MATERIALS AND METHODS A retrospective analysis of patients who underwent robotic-assisted radical prostatectomy with pelvic lymph node dissection and had a preoperative negative PSMA PET scan for metastasis was performed. The documented pre-operative variables studied included age, BMI, PSA at diagnosis, Gleason score, and biopsy ISUP grades. Patients were categorised as low, intermediate and high risk according to the D Amico classification. The post-op variables included were number of lymph nodes harvested, number of positive nodes, positivity rate, size of the node metastasis, T staging and ISUP grading. RESULTS The overall negative predictive value of PSMA PET scan was 71.6%. Further sub-classification according to risk stratification demonstrated a NPV of 58.02%, 92.7% and 90% for high, intermediate and low risk, respectively. CONCLUSION Pelvic lymph node dissection cannot be excluded based on a negative preop PSMA PET/CT scan.
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Affiliation(s)
- Kishore Thekke Adiyat
- Aster Medcity, Kochi, India.
- Department of Urology, Aster Medcity, Kuttisahib Road, Cheranelloor, Ernakulam, Kerala, 682027, India.
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11
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Roberts MJ, Maurer T, Perera M, Eiber M, Hope TA, Ost P, Siva S, Hofman MS, Murphy DG, Emmett L, Fendler WP. Using PSMA imaging for prognostication in localized and advanced prostate cancer. Nat Rev Urol 2023; 20:23-47. [PMID: 36473945 DOI: 10.1038/s41585-022-00670-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2022] [Indexed: 12/12/2022]
Abstract
The use of prostate-specific membrane antigen (PSMA)-directed applications in modern prostate cancer management has evolved rapidly over the past few years, helping to establish new treatment pathways and provide further insights into prostate cancer biology. However, the prognostic implications of PSMA-PET have not been studied systematically, owing to rapid clinical implementation without long follow-up periods to determine intermediate-term and long-term oncological outcomes. Currently available data suggest that traditional prognostic factors and survival outcomes are associated with high PSMA expression (both according to immunohistochemistry and PET uptake) in men with localized and biochemically recurrent disease. Treatment with curative intent (primary and/or salvage) often fails when PSMA-positive metastases are present; however, the sensitivity of PSMA-PET in detecting all metastases is poor. Low PSMA-PET uptake in recurrent disease is a favourable prognostic factor; however, it can be associated with poor prognosis in conjunction with high 18F-fluorodeoxyglucose uptake in metastatic castration-resistant prostate cancer. Clinical trials embedding PSMA-PET for guiding management with reliable oncological outcomes are needed to support ongoing clinical use.
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Affiliation(s)
- Matthew J Roberts
- Department of Urology, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia.
- University of Queensland Centre for Clinical Research, Faculty of Medicine, Brisbane, Queensland, Australia.
- Department of Urology, Redcliffe Hospital, Brisbane, Queensland, Australia.
| | - Tobias Maurer
- Martini-Klinik Prostate Cancer Center, Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Marlon Perera
- Department of Surgery, Austin Health, Heidelberg, Victoria, Australia
| | - Matthias Eiber
- Department of Nuclear Medicine, Technical University of Munich, Munich, Germany
| | - Thomas A Hope
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA
| | - Piet Ost
- Department of Radiation Oncology, Iridium Network, GZA Ziekenhuizen, Antwerp, Belgium
- Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | - Shankar Siva
- Peter MacCallum Cancer Centre, Radiation Oncology, Parkville, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, Melbourne University, Parkville, Victoria, Australia
| | - Michael S Hofman
- Sir Peter MacCallum Department of Oncology, Melbourne University, Parkville, Victoria, Australia
- Molecular Imaging and Therapeutic Nuclear Medicine, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Prostate Cancer Theranostics and Imaging Centre of Excellence, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Declan G Murphy
- Sir Peter MacCallum Department of Oncology, Melbourne University, Parkville, Victoria, Australia
- Prostate Cancer Theranostics and Imaging Centre of Excellence, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Louise Emmett
- Department of Theranostics and Nuclear Medicine, St Vincent's Hospital, Sydney, New South Wales, Australia
- Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Wolfgang P Fendler
- Department of Nuclear Medicine, University of Duisburg-Essen, Essen, Germany
- PET Committee of the German Society of Nuclear Medicine, Goettingen, Germany
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12
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Qi F, Xu W, Li L, Li X, Xu Z. Evaluation of the role of local therapy in patients with cN1M0 prostate cancer: A population-based study from the SEER database. Front Oncol 2022; 12:1050317. [PMID: 36544700 PMCID: PMC9760928 DOI: 10.3389/fonc.2022.1050317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/17/2022] [Indexed: 12/07/2022] Open
Abstract
Objective To investigate the prognostic value of local therapy (LT) in cN1M0 prostate cancer (PCa). Methods Patients diagnosed with cN1M0 PCa were extracted from the surveillance, epidemiology, and end results (SEER) database. Kaplan-Meier (KM) curve was used to compare the survival outcomes between patients treated with and without LT. Further, among patients receiving LT, KM analysis was also applied to investigate the survival differences in patients with radical prostatectomy (RP) and radiation therapy (RT). Propensity score matching (PSM) analysis was performed to balance the basic characteristics of patients in each group and make it comparable when exploring the survival impact of different treatment types. Finally, uni- and multivariable Cox proportional-hazards models were utilized to identify independent prognostic factors associated with overall survival (OS) and cancer-specific survival (CSS) in this population. Results Patients treated with LT had significantly better OS (P<0.0001) and CSS (P<0.0001) than those without LT, as well as in most subgroups, except for non-White patients, or those with ISUP grade group 1 or T3 stage. Notably, patients receiving RP also had significantly better OS (P=0.00012) and CSS (P=0.0045) than those treated with RT alone, especially in those aged ≥75 years old, prostate-specific antigen (PSA) 10-20 ng/mL, ISUP grade 1-3 or non-white patients. Finally, clinical T stage, ISUP grade group and the administration of LT were identified to be independent prognostic factors for OS and CSS among cN1M0 PCa patients. Conclusion The cN1M0 PCa patients treated with LT were associated with significantly better survival. Among patients receiving LT, the combination of RP and PLND could lead to a better prognosis compared to RT alone in most subgroups. An individualized treatment strategy is warranted to be developed after weighing the benefits and risks of treatment.
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Affiliation(s)
- Feng Qi
- Department of Urologic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Wenbo Xu
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
| | - Lu Li
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd., Nanjing, China
| | - Xiao Li
- Department of Urologic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China,Department of Scientific Research, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China,*Correspondence: Zicheng Xu, ; Xiao Li,
| | - Zicheng Xu
- Department of Urologic Surgery, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China,*Correspondence: Zicheng Xu, ; Xiao Li,
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13
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Bukavina L, Luckenbaugh AN, Hofman MS, Hope T, Kamran SC, Murphy DG, Yamoah K, Ost P. Incorporating Prostate-specific Membrane Antigen Positron Emission Tomography in Management Decisions for Men with Newly Diagnosed or Biochemically Recurrent Prostate Cancer. Eur Urol 2022; 83:521-533. [PMID: 36404204 DOI: 10.1016/j.eururo.2022.10.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/15/2022] [Accepted: 10/28/2022] [Indexed: 11/19/2022]
Abstract
CONTEXT Prostate-specific membrane antigen (PSMA) is a promising molecular target for prostate cancer (PCa) that has allowed the development of a novel diagnostic approach to PCA in the primary and recurrent settings. OBJECTIVE To summarize available data and recommendations regarding the use of PSMA in newly diagnosed and recurrent PCa via a narrative review. EVIDENCE ACQUISITION A literature review was conducted using MEDLINE (via PubMed) and Scopus. The search strategy included meta-analyses, reviews, and original studies on staging and restaging with 68Ga-PSMA positron emission tomography (PET)/computed tomography (CT). EVIDENCE SYNTHESIS Studies comparing PSMA-targeted imaging and conventional imaging suggest superior performance of PSMA-targeted imaging in primary and recurrent PCa, albeit with several clinically relevant limitations. Pretreatment 68Ga-PSMA PET/CT allowed more accurate PCa staging in compared to routine practice for high-risk cases, and identified a number of otherwise unknown metastatic lesions. In biochemically recurrent PCa, PSMA PET can reveal sites of recurrence with greater sensitivity and specificity than conventional imaging, potentially detecting a major proportion of occult disease. This review will help providers in applying the most up-to-date and relevant literature to (1) determine which patients truly have oligometastatic disease and (2) ascertain who is most likely to experience a meaningful response to local consolidation in the biochemical recurrence setting. CONCLUSIONS Data on PSMA diagnostic studies in primary and recurrent PCa highlight the accuracy and clinical application of PSMA PET. While this review and the evidence to date might lead to a perception of superiority in metastasis directed therapy, fundamental lack of phase III clinical trials with clinically meaningful outcomes are yet to be determined. PATIENT SUMMARY PSMA (prostate-specific membrane antigen) scans have shown great promise for initial evaluation of prostate cancer (PCa) and in detection of PCa recurrence. The benefits are more apparent for initial staging of PCa. There are more limited clinical trial results for PCa recurrence on how best to use this new technique to guide cancer treatment.
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14
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Prostate specific membrane antigen positron emission tomography in primary prostate cancer diagnosis: First-line imaging is afoot. Cancer Lett 2022; 548:215883. [PMID: 36027998 DOI: 10.1016/j.canlet.2022.215883] [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: 07/23/2022] [Accepted: 08/11/2022] [Indexed: 11/23/2022]
Abstract
Prostate specific membrane antigen positron emission tomography (PSMA PET) is an excellent molecular imaging technique for prostate cancer. Currently, PSMA PET for patients with primary prostate cancer is supplementary to conventional imaging techniques, according to guidelines. This supplementary function of PSMA PET is due to a lack of systematic review of its strengths, limitations, and potential development direction. Thus, we review PSMA ligands, detection, T, N, and M staging, treatment management, and false results of PSMA PET in clinical studies. We also discuss the strengths and challenges of PSMA PET. PSMA PET can greatly increase the detection rate of prostate cancer and accuracy of T/N/M staging, which facilitates more appropriate treatment for primary prostate cancer. Lastly, we propose that PSMA PET could become the first-line imaging modality for primary prostate cancer, and we describe its potential expanded application.
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15
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Accuracy of 68Ga-PSMA PET/CT for lymph node and bone primary staging in prostate cancer. Urol Oncol 2021; 40:104.e17-104.e21. [PMID: 34911650 DOI: 10.1016/j.urolonc.2021.11.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/04/2021] [Accepted: 11/06/2021] [Indexed: 12/28/2022]
Abstract
PURPOSE The aim of this study is to assess the accuracy of the 68Ga-PSMA PET/CT for lymph nodes and bones in the primary stage of prostate cancer. METHODS A total of 126 patients who were submitted to 68Ga-PSMA PET/CT from January 2016 to February 2019 for prostate cancer staging, detection of clinically significant lesions or active surveillance were included in this study. All studies were read by 2 experienced physicians (a nuclear physician and a radiologist). The reports were made in consensus and used by one of the authors to classify the exam in positive or negative. We evaluated presence of abnormal uptake in the prostate, lymph nodes, and bone. The reference standards were histopathological confirmation, confirmatory imaging exams and/or clinical follow-up showing lesion(s) regression after specific treatment, or typical osseous metastatic lesions and highly increased PSA levels. RESULTS Measurement of diagnostic performance indicated a sensitivity, specificity and accuracy of 75%, 96.3%, and 90.8%, respectively, for lymph node involvement, and 90.9%, 50%, and 76.5%, respectively for metastatic bone lesions. CONCLUSION This study showed high specificity and accuracy of 68Ga-PSMA PET/CT for lymph node and bone involvement in prostate cancer staging.
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16
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van der Meulen NP, Strobel K, Lima TVM. New Radionuclides and Technological Advances in SPECT and PET Scanners. Cancers (Basel) 2021; 13:cancers13246183. [PMID: 34944803 PMCID: PMC8699425 DOI: 10.3390/cancers13246183] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Advances in nuclear medicine are made by technological and radionuclide improvements. Throughout nuclear medicine’s history, these advances were often intertwined and complementary based on different clinical questions, availability and need. This paper covers some of these developments in radionuclides and instrumentation. Abstract Developments throughout the history of nuclear medicine have involved improvements in both instrumentation and radionuclides, which have been intertwined. Instrumentation developments always occurred during the search to improving devices’ sensitivity and included advances in detector technology (with the introduction of cadmium zinc telluride and digital Positron Emission Tomography—PET-devices with silicon photomultipliers), design (total body PET) and configuration (ring-shaped, Single-Photon Emission Computed Tomography (SPECT), Compton camera). In the field of radionuclide development, we observed the continual changing of clinically used radionuclides, which is sometimes influenced by instrumentation technology but also driven by availability, patient safety and clinical questions. Some areas, such as tumour imaging, have faced challenges when changing radionuclides based on availability, when this produced undesirable clinical findings with the introduction of unclear focal uptakes and unspecific uptakes. On the other end of spectrum, further developments of PET technology have seen a resurgence in its use in nuclear cardiology, with rubidium-82 from strontium-82/rubidium-82 generators being the radionuclide of choice, moving away from SPECT nuclides thallium-201 and technetium-99m. These continuing improvements in both instrumentation and radionuclide development have helped the growth of nuclear medicine and its importance in the ever-evolving range of patient care options.
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Affiliation(s)
- Nicholas P. van der Meulen
- Center for Radiopharmaceutical Sciences ETH-PSI-USZ, Paul Scherrer Institute, 5232 Villigen, Switzerland
- Laboratory of Radiochemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
- Correspondence: (N.P.v.d.M.); (T.V.M.L.)
| | - Klaus Strobel
- Department of Radiology and Nuclear Medicine, Luzerner Kantonsspital, 6000 Luzern, Switzerland;
| | - Thiago Viana Miranda Lima
- Department of Radiology and Nuclear Medicine, Luzerner Kantonsspital, 6000 Luzern, Switzerland;
- Institute of Radiation Physics, Lausanne University Hospital, University of Lausanne, 1007 Lausanne, Switzerland
- Correspondence: (N.P.v.d.M.); (T.V.M.L.)
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17
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Ling SW, de Jong AC, Schoots IG, Nasserinejad K, Busstra MB, van der Veldt AAM, Brabander T. Comparison of 68Ga-labeled Prostate-specific Membrane Antigen Ligand Positron Emission Tomography/Magnetic Resonance Imaging and Positron Emission Tomography/Computed Tomography for Primary Staging of Prostate Cancer: A Systematic Review and Meta-analysis. EUR UROL SUPPL 2021; 33:61-71. [PMID: 34632423 PMCID: PMC8488242 DOI: 10.1016/j.euros.2021.09.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/05/2021] [Indexed: 11/25/2022] Open
Abstract
Context In December 2020, the US Food and Drug Administration approved a 68Ga-labeled prostate-specific membrane antigen ligand (68Ga-PSMA-11) for positron emission tomography (PET) in patients with suspected prostate cancer (PCa) metastasis who are candidates for initial definitive therapy. 68Ga-PSMA PET is increasingly performed for these patients and is usually combined with computed tomography (CT). In recent years, 68Ga-PSMA PET has been combined with high-resolution magnetic resonance imaging (MRI), which is beneficial for T staging and may further enhance the staging of primary PCa. Objective To compare the diagnostic accuracy of 68Ga-PSMA PET/MRI with 68Ga-PSMA PET/CT for staging of primary PCa. Evidence acquisition A comprehensive literature search was performed using Embase, PubMed/Medline, Web of Science, Cochrane Library, and Google Scholar up to June 24, 2021 in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Risk of bias was assessed using the QUADAS-2 tool. Evidence synthesis The search identified 2632 articles, of which 27 were included. The diagnostic accuracy of 68Ga-PSMA PET/MRI, measured as the pooled natural logarithm of diagnostic odds ratio (lnDOR), was 2.27 (95% confidence interval [CI] 1.21–3.32) for detection of extracapsular extension (ECE), 3.50 (95% CI 2.14–4.86) for seminal vesicle invasion (SVI), and 4.73 (95% CI 2.93–6.52) for lymph node metastasis (LNM). For 68Ga-PSMA PET/CT, the analysis showed lnDOR of 2.45 (95% CI 0.75–4.14), 2.94 (95% CI 2.26–3.63), and 2.42 (95% CI 2.07–2.78) for detection of ECE, SVI, and LNM, respectively. The overall risk of bias and applicability concerns were assessed as moderate and low, respectively. Conclusions 68Ga-PSMA PET/MRI shows high diagnostic accuracy equivalent to that of 68Ga-PSMA PET/CT for detection of ECE, SVI, and LNM in staging of PCa. There is an urgent need for direct comparison of the two diagnostic tests in future research. Patient summary The use of radioactively labeled molecules that bind to prostate-specific membrane antigen (68Ga-PSMA) for positron emission tomography (PET) scans combined with either computed tomography (CT) or magnetic resonance imaging (MRI) is increasing for prostate cancer diagnosis. There is a need for direct comparison of the two tests to demonstrate the benefit of 68Ga-PSMA PET/MRI for determining tumor stage in prostate cancer. Take Home Message After the recent US Food and Drug Administration approval of 68Ga-labeled prostate-specific membrane antigen ligand (68Ga-PSMA) positron emission tomography (PET) for staging of primary prostate cancer (PCa), it is expected that the use of this imaging modality will increase rapidly. Our review of the literature shows that 68Ga-PSMA PET/magnetic resonance imaging has high diagnostic accuracy equivalent to that of 68Ga-PSMA PET/computed tomography in primary PCa staging. There is an urgent need for direct head-to-head comparison of the two diagnostic tests in future research.
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Affiliation(s)
- Sui Wai Ling
- Department of Radiology & Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Anouk C de Jong
- Department of Radiology & Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands.,Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Ivo G Schoots
- Department of Radiology & Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
| | | | | | - Astrid A M van der Veldt
- Department of Radiology & Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands.,Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Tessa Brabander
- Department of Radiology & Nuclear Medicine, Erasmus MC, Rotterdam, The Netherlands
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18
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Stabile A, Pellegrino A, Mazzone E, Cannoletta D, de Angelis M, Barletta F, Scuderi S, Cucchiara V, Gandaglia G, Raggi D, Necchi A, Karakiewicz P, Montorsi F, Briganti A. Can Negative Prostate-specific Membrane Antigen Positron Emission Tomography/Computed Tomography Avoid the Need for Pelvic Lymph Node Dissection in Newly Diagnosed Prostate Cancer Patients? A Systematic Review and Meta-analysis with Backup Histology as Reference Standard. Eur Urol Oncol 2021; 5:1-17. [PMID: 34538770 DOI: 10.1016/j.euo.2021.08.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/05/2021] [Accepted: 08/31/2021] [Indexed: 01/06/2023]
Abstract
CONTEXT The role of positron emission tomography/computed tomography (PET/CT) with prostate-specific membrane antigen (PSMA) in the primary staging for patients with prostate cancer (PCa) is still debated. OBJECTIVE To analyze published studies reporting the accuracy of PSMA PET/CT for detecting lymph node invasion (LNI) at pelvic lymph node dissection (PLND). EVIDENCE ACQUISITION A search of PubMed/MEDLINE, Cochrane library's Central, EMBASE and Scopus databases, from inception to May 2021, was conducted. The primary outcome was to evaluate the sensitivity, specificity, positive (PPV) and negative (NPV) predictive values of PSMA PET/CT in detecting LNI on a per-patient level. As a secondary outcome, NPV of PET PSMA was tested on a per-node-level analysis. Detection rates were pooled using random-effect models. Preplanned subgroup analyses tested the diagnostic accuracy after stratification for the preoperative risk group. PPV and NPV variation over LNI prevalence was evaluated. Only studies including extended PLND (ePLND) as the reference standard test were included. EVIDENCE SYNTHESIS Twenty-seven studies, with a total of 2832 participants, were included in quantitative synthesis. The sensitivity, specificity, PPV, and NPV of PSMA PET/CT for LNI were, respectively, 58% (95% confidence interval [CI] 50-66%), 95% (95% CI 93-97%), 79% (95% CI 72-85%), and 87% (95% CI 84-89%), with overall moderate heterogeneity between studies. At bivariate analysis, the diagnostic accuracy of PSMA PET/CT estimated through summary receiver operating characteristic-derived area under the curve was 84% (95% CI 81-87%). On a per-node level, NPV of PET PSMA was 97% (95% CI 96-99%). At subgroup analyses, according to preoperative risk groups, sensitivity, specificity, PPV, and NPV were 51%, 93%, 73%, and 81%, respectively, in high-risk patients. Over the LNI prevalence range of 5-40%, PPV increased from 59% to 91%, while NPV decreased from 99% to 84%. CONCLUSIONS PSMA PET/CT scan provides promising accuracy in the field of primary nodal staging for PCa. The high NPV in men with a lower risk of LNI might be clinically useful to reduce the number of unnecessary PLND procedures performed. Conversely, in high-risk patients, negative PSMA PET/CT cannot replace staging ePLND. PATIENT SUMMARY In this systematic review and meta-analysis, we demonstrated that prostate-specific membrane antigen (PSMA) positron emission tomography/computed tomography (PET/CT) scan may optimize the primary nodal staging and surgical management of prostate cancer patients candidate to radical prostatectomy. The high negative predictive value in men with a lower risk of lymph node invasion might be clinically useful for reducing the number of useless pelvic lymph node dissection (PLND) procedures performed. Conversely, in high-risk patients, negative PSMA PET/CT cannot allow avoiding of PLND.
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Affiliation(s)
- Armando Stabile
- Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy.
| | - Antony Pellegrino
- Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Elio Mazzone
- Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Donato Cannoletta
- Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Mario de Angelis
- Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Francesco Barletta
- Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Simone Scuderi
- Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Vito Cucchiara
- Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Giorgio Gandaglia
- Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Daniele Raggi
- Department of Oncology, Vita-Salute San Raffaele University, Milan, Italy
| | - Andrea Necchi
- Department of Oncology, Vita-Salute San Raffaele University, Milan, Italy
| | - Pierre Karakiewicz
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montreal Health Center, Montreal, QC, Canada
| | - Francesco Montorsi
- Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Alberto Briganti
- Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
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19
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de Kouchkovsky I, Aggarwal R, Hope TA. Prostate-specific membrane antigen (PSMA)-based imaging in localized and advanced prostate cancer: a narrative review. Transl Androl Urol 2021; 10:3130-3143. [PMID: 34430416 PMCID: PMC8350242 DOI: 10.21037/tau-20-1047] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 10/30/2020] [Indexed: 12/13/2022] Open
Abstract
Combined molecular and morphologic imaging modalities have emerged in recent years as an alternative to conventional imaging in prostate cancer (PC). In particular, novel prostate-specific membrane antigen (PSMA) radiotracers have demonstrated increased sensitivity and specificity for the initial staging of men with clinically localized PC, as well as for PC detection in the setting of biochemical recurrence (BCR). Molecular imaging is increasingly used to guide treatment decisions in these patients—though its impact on survival has yet to be established. Improved PC detection in men with BCR has also helped to identify a subset of patients with oligometastatic disease. The optimal management of oligometastatic PC and the role of metastasis-directed therapies (MDT) are the subjects of ongoing studies. In comparison to clinically localized or biochemically recurrent PC, the role of molecular imaging in men with advanced disease is less established. In metastatic castration-resistant PC (mCRPC), PSMA-based imaging has primarily been investigated as a companion diagnostic tool to predict and monitor response to PSMA-targeted radioligand therapy (RLT). More recent efforts have focused on using molecular imaging to monitor treatment response to conventional chemohormonal therapies. However, despite promising early results, several barriers remain to the widespread use of PSMA-based imaging in metastatic PC: temporary flares in PSMA uptake have been described in a subset of patients after initiation of therapy, and the underlying mechanism and clinical implications of this phenomenon are still poorly understood. Furthermore, whereas PSMA is invariably expressed in hormone-sensitive PC, loss of PSMA expression is increasingly recognized in a subset of mCRPC patients with aggressive disease. Although this may limit the use of PSMA-based imaging as a standalone modality in advanced PC, loss of PSMA uptake may also provide non-invasive and clinically relevant molecular insight on patients’ underlying tumor biology.
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Affiliation(s)
- Ivan de Kouchkovsky
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
| | - Rahul Aggarwal
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
| | - Thomas A Hope
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA.,Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, USA
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Malaspina S, Anttinen M, Taimen P, Jambor I, Sandell M, Rinta-Kiikka I, Kajander S, Schildt J, Saukko E, Noponen T, Saunavaara J, Dean PB, Sequeiros RB, Aronen HJ, Kemppainen J, Seppänen M, Boström PJ, Ettala O. Prospective comparison of 18F-PSMA-1007 PET/CT, whole-body MRI and CT in primary nodal staging of unfavourable intermediate- and high-risk prostate cancer. Eur J Nucl Med Mol Imaging 2021; 48:2951-2959. [PMID: 33715033 PMCID: PMC8263440 DOI: 10.1007/s00259-021-05296-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 02/28/2021] [Indexed: 12/14/2022]
Abstract
PURPOSE To prospectively compare 18F-prostate-specific membrane antigen (PSMA)-1007 positron emission tomography (PET)/CT, whole-body magnetic resonance imaging (WBMRI) including diffusion-weighted imaging (DWI) and standard computed tomography (CT), in primary nodal staging of prostate cancer (PCa). METHODS Men with newly diagnosed unfavourable intermediate- or high-risk PCa prospectively underwent 18F-PSMA-1007 PET/CT, WBMRI with DWI and contrast-enhanced CT within a median of 8 days. Six readers (two for each modality) independently reported pelvic lymph nodes as malignant, equivocal or benign while blinded to the other imaging modalities. Sensitivity, specificity and accuracy were reported according to optimistic (equivocal lesions interpreted as benign) and pessimistic (equivocal lesions interpreted as malignant) analyses. The reference standard diagnosis was based on multidisciplinary consensus meetings where available histopathology, clinical and follow-up data were used. RESULTS Seventy-nine patients completed all the imaging modalities, except for one case of interrupted WBMRI. Thirty-one (39%) patients had pelvic lymph node metastases, which were detected in 27/31 (87%), 14/31 (45%) and 8/31 (26%) patients by 18F-PSMA-1007 PET/CT, WBMRI with DWI and CT, respectively (optimistic analysis). In 8/31 (26%) patients, only 18F-PSMA-1007 PET/CT detected malignant lymph nodes, while the other two imaging modalities were reported as negative. At the patient level, sensitivity and specificity values for 18F-PSMA-1007 PET/CT, WBMRI with DWI and CT in optimistic analysis were 0.87 (95%CI 0.71-0.95) and 0.98 (95%CI 0.89-1.00), 0.37 (95%CI 0.22-0.55) and 0.98 (95%CI 0.89-1.00) and 0.26 (95%CI 0.14-0.43) and 1.00 (95%CI 0.93-1.00), respectively. CONCLUSION 18F-PSMA-1007 PET/CT showed significantly greater sensitivity in nodal staging of primary PCa than did WBMRI with DWI or CT, while maintaining high specificity. CLINICAL TRIAL REGISTRATION Clinicaltrials.gov ID: NCT03537391.
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Affiliation(s)
- Simona Malaspina
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland.
| | - Mikael Anttinen
- Department of Urology, University of Turku and Turku University Hospital, Turku, Finland
| | - Pekka Taimen
- Institute of Biomedicine and Department of Pathology, University of Turku and Turku University Hospital, Turku, Finland
| | - Ivan Jambor
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Diagnostic Radiology, University of Turku and Turku University Hospital, Turku, Finland
| | - Minna Sandell
- Department of Diagnostic Radiology, University of Turku and Turku University Hospital, Turku, Finland
| | | | - Sami Kajander
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Jukka Schildt
- Department of Clinical Physiology and Nuclear Medicine, Helsinki University Central Hospital, Helsinki, Finland
| | - Ekaterina Saukko
- Department of Diagnostic Radiology, University of Turku and Turku University Hospital, Turku, Finland
| | - Tommi Noponen
- Department of Medical Physics and Nuclear Medicine, University of Turku and Turku University Hospital, Turku, Finland
| | - Jani Saunavaara
- Department of Medical Physics and Nuclear Medicine, University of Turku and Turku University Hospital, Turku, Finland
| | - Peter B Dean
- Department of Diagnostic Radiology, University of Turku and Turku University Hospital, Turku, Finland
| | - Roberto Blanco Sequeiros
- Department of Diagnostic Radiology, University of Turku and Turku University Hospital, Turku, Finland
| | - Hannu J Aronen
- Department of Diagnostic Radiology, University of Turku and Turku University Hospital, Turku, Finland
| | - Jukka Kemppainen
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Marko Seppänen
- Department of Clinical Physiology, Nuclear Medicine and Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Peter J Boström
- Department of Urology, University of Turku and Turku University Hospital, Turku, Finland
| | - Otto Ettala
- Department of Urology, University of Turku and Turku University Hospital, Turku, Finland
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Corona-Montes V, González-Cuenca E, Fernández-Noyola G, Olarte-Casas M, Bobadilla-Salazar D, Medrano-Urtecho H, Asimakopoulos A. Primary lymph-node staging with 68Ga-PSMA PET in high-risk prostate cancer: pathologic correlation with extended pelvic lymphadenectomy specimens. Urol Oncol 2021; 39:494.e1-494.e6. [DOI: 10.1016/j.urolonc.2020.10.074] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/20/2020] [Accepted: 10/29/2020] [Indexed: 12/30/2022]
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Interobserver and intraobserver agreement on prostate-specific membrane antigen PET/CT images according to the miTNM and PSMA-RADS criteria. Nucl Med Commun 2021; 41:759-767. [PMID: 32453205 DOI: 10.1097/mnm.0000000000001219] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
AIM In this study, we aimed to measure interobserver and intraobserver agreement in Ga-68-prostate-specific membrane antigen (PSMA) PET/computed tomography (CT) image interpretation. In addition, the limitations of these criteria and levels of personal confidence reported by the readers when reporting the findings were determined. The effects of interpersonal differences on clinical decisions were also investigated. METHODS PSMA PET images from 133 cases were reported independently by four different readers at different times according to the molecular imaging TNM (miTNM) and PSMA-reporting and data system (RADS) templates. RESULTS There was substantial interobserver agreement for overall positivity, miT, miN and miM staging (Fleiss' κ = 0.65, 0.625, 0.731, and 0.779). Substantial agreement levels were observed in reporting of seminal vesicle invasion, the number of lymph node stations with metastasis, total number of intraprostatic areas containing tumors, and lymph node metastasis staging (Fleiss' κ = 0.622 and 0.779). The highest variation was seen in the reporting of intraprostatic distribution: In International Society of Urological Pathology (ISUP) grade group 1, moderate agreement was observed, and it was seen that the agreement level for the T staging increased with an increasing ISUP group in the staging group (Fleiss' κ = 0.531 vs. 0.655). There was near-perfect interobserver agreement in the reporting of five-point PSMA-RADS scoring [intraclass correlation coefficient (ICC) κ = 0.904; 95% CI, 0.865-0.934]. Disagreement according to miTNM staging had a major effect on clinical management in only 9% (n = 12) of the patients. CONCLUSION PSMA PET has a lower interobserver variability and higher reproducibility than other imaging methods used for imaging of prostate cancer do, including CT, MRI, and bone scintigraphy. The miTNM template provides a reporting format that is highly reproducible and has a high level of agreement among readers, but the prostatic template needs development. In contrast, the PSMA-RADS system leads to slightly increased interobserver reporting differences and reduces personal confidence, but at the same time, it still exhibits almost-perfect agreement in terms of scoring.
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Jiao J, Quan Z, Zhang J, Wen W, Qin J, Yang L, Meng P, Jing Y, Ma S, Wu P, Han D, Davis AA, Ren J, Yang X, Kang F, Zhang Q, Wang J, Qin W. The Establishment of New Thresholds for PLND-Validated Clinical Nomograms to Predict Non-Regional Lymph Node Metastases: Using 68Ga-PSMA PET/CT as References. Front Oncol 2021; 11:658669. [PMID: 33937073 PMCID: PMC8082014 DOI: 10.3389/fonc.2021.658669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/09/2021] [Indexed: 12/31/2022] Open
Abstract
Purpose PLND (pelvic lymph node dissection)-validated nomograms are widely accepted clinical tools to determine the necessity of PLND by predicting the metastasis of lymph nodes (LNMs) in pelvic region. However, these nomograms are in lacking of a threshold to predict the metastasis of extrareolar lymph nodes beyond pelvic region, which is not suitable for PLND. The aim of this study is to evaluate a threshold can be set for current clinical PLND-validated nomograms to predict extrareolar LN metastases beyond pelvic region in high-risk prostate cancer patients, by using 68Ga-PSMA PET/CT as a reference to determine LN metastases (LNMs). Experimental Design We performed a retrospective analysis of 57 high-risk treatment-naïve PC patients in a large tertiary care hospital in China who underwent 68Ga-PSMA-617 PET/CT imaging. LNMs was detected by 68Ga-PSMA-617 PET/CT and further determined by imaging follow-up after anti-androgen therapy. The pattern of LN metastatic spread of PC patients were evaluated and analyzed. The impact of 68Ga-PSMA PET/CT on clinical decisions based on three clinical PLND-validated nomograms (Briganti, Memorial Sloan Kettering Cancer Center, Winter) were evaluated by a multidisciplinary prostate cancer therapy team. The diagnostic performance and the threshold of these nomograms in predicting extrareolar LNMs metastasis were evaluated via receiver operating characteristic (ROC) curve analysis. Results LNMs were observed in 49.1% of the patients by 68Ga-PSMA PET/CT, among which 65.5% of LNMs were pelvic-regional and 34.5% of LNMs were observed in extrareolar sites (52.1% of these were located above the diaphragm). The Briganti, MSKCC and Winter nomograms showed that 70.2%-71.9% of the patients in this study need to receive ePLND according to the EAU and NCCN guidelines. The LN staging information obtained from 68Ga-PSMA PET/CT would have led to changes of planned management in 70.2% of these patients, including therapy modality changes in 21.1% of the patients, which were mainly due to newly detected non-regional LNMs. The thresholds of nomograms to predict non-regional LNMs were between 64% and 75%. The PC patients with a score >64% in Briganti nomogram, a score >75% in MSKCC nomogram and a score >67% in Winter nomogram were more likely to have non-regional LNMs. The AUCs (Area under curves) of the clinical nomograms (Briganti, MSKCC and Winter) in predicting non-regional LNMs were 0.816, 0.830 and 0.793, respectively. Conclusions By using 68Ga-PSMA PET/CT as reference of LNM, the PLND-validated clinical nomograms can not only predict regional LNMs, but also predict non-regional LNMs. The additional information from 68Ga-PSMA PET/CT may provide added benefit to nomograms-based clinical decision-making in more than two-thirds of patients for reducing unnecessary PLND. We focused on that a threshold can be set for current clinical PLND-validated nomograms to predict extrareolar LN metastases with an AUC accuracy of about 80% after optimizing the simple nomograms which may help to improve the efficiency for PC therapy significantly in clinical practice.
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Affiliation(s)
- Jianhua Jiao
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zhiyong Quan
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jingliang Zhang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Weihong Wen
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| | - Jun Qin
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Lijun Yang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Ping Meng
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yuming Jing
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shuaijun Ma
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Peng Wu
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Donghui Han
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Andrew A Davis
- Department of Medicine, Division of Hematology/Oncology, Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Jing Ren
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiaojian Yang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Fei Kang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Qiang Zhang
- Department of Medicine, Division of Hematology/Oncology, Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Jing Wang
- Department of Nuclear Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Weijun Qin
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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Hernes E, Revheim ME, Hole KH, Tulipan AJ, Strømme H, Lilleby W, Seierstad T. Prostate-Specific Membrane Antigen PET for Assessment of Primary and Recurrent Prostate Cancer with Histopathology as Reference Standard: A Systematic Review and Meta-Analysis. PET Clin 2021; 16:147-165. [PMID: 33648661 DOI: 10.1016/j.cpet.2020.12.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Prostate-specific membrane antigen PET is a promising diagnostic tool in prostate cancer. The gold standard for the detection of prostate tumor and lymph node metastases is histopathology. The aim of the present review was to investigate accuracy measures of 68Ga/18F-labeled prostate-specific membrane antigen PET tracers in primary and recurrent prostate cancer with systematic sector-based histopathology as the reference standard. A systematic literature search was performed and 34 studies were included. Overall, prostate-specific membrane antigen PET showed high specificity, but variable sensitivity to localize known prostate cancer and detect pelvic lymph node metastases.
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Affiliation(s)
- Eivor Hernes
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, P.O. Box 4956 Nydalen, 0424 Oslo, Norway.
| | - Mona-Elisabeth Revheim
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, P.O. Box 4956 Nydalen, 0424 Oslo, Norway; Institute of Clinical Medicine, University of Oslo, P.O. Box 1171 Blindern, 0318 Oslo, Norway
| | - Knut Håkon Hole
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, P.O. Box 4956 Nydalen, 0424 Oslo, Norway; Institute of Clinical Medicine, University of Oslo, P.O. Box 1171 Blindern, 0318 Oslo, Norway
| | - Andreas Julius Tulipan
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, P.O. Box 4956 Nydalen, 0424 Oslo, Norway; Institute of Clinical Medicine, University of Oslo, P.O. Box 1171 Blindern, 0318 Oslo, Norway
| | - Hilde Strømme
- Library of Medicine and Science, University of Oslo, Sognsvannsveien 20, 0372 Oslo, Norway
| | - Wolfgang Lilleby
- Department of Oncology, Oslo University Hospital, P.O. Box 4953 Nydalen, 0424 Oslo, Norway
| | - Therese Seierstad
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, P.O. Box 4956 Nydalen, 0424 Oslo, Norway
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Correlations between whole body volumetric parameters of 68Ga-PSMA PET/CT and biochemical-histopathological parameters in castration-naive and resistant prostate cancer patients. Ann Nucl Med 2021; 35:540-548. [PMID: 33586097 DOI: 10.1007/s12149-021-01594-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 01/28/2021] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To evaluate the relationship between whole body volumetric (Wbv) results of 68Ga-PSMA PET/CT with biochemical and histopathological parameters. METHODS One hundred twenty-one prostate cancer patients who underwent 68Ga-PSMA PET/CT between January 2018 and December 2019 were included. Imaging was conducted for staging upon new diagnosis with moderate- and high-risk disease and for confirming the progression of castration resistance. The relationships between the Wbv 68Ga-PSMA PET/CT parameters and prostate-specific antigen (PSA) levels, PSA doubling time and Gleason score (GS) were evaluated. RESULTS The median GS and mean PSA levels were similar between the castration-naive and resistant patients. The PSA levels were positively correlated with MTVwb (p: 0.009, r: 0.286) and TLPwb (p: 0.002, r: 0.344). Gleason scores were positively correlated with MTVwb (p: 0.050, r: 0.216), TLPwb (p: 0.007, r: 0.296) and highest standard uptake value (HSUV) max (p: 0.047, r: 0.220). In the castration-naive group, Gleason scores (from p < 0.001 to p = 0.04 and r = 0.331 to 0.549) and PSA levels (from p = 0.002 to p = 0.045 and from r = 0.323 to 0.473) correlated with all 68Ga-PSMA-PET/CT parameters. PSA doubling time was negatively correlated with whole-body metabolic tumour volume (MTVwb) (p: 0.050, r: 0.232) and whole-body total lesion PSMA (TLPwb) (p: 0.026, r: 0.262). The MTVwb, TLPwb and HSUVpeak values of the patients with biochemical recurrence (BR) of 0-6 months (n = 18) were higher than those with BR > 2 years (n = 35) (p = 0.046, 0.047 and 0.042, respectively). CONCLUSIONS Wbv 68Ga-PSMA PET/CT results were correlated with PSA levels and Gleason scores. The correlation was relatively stronger in the castration-naive group. The prognostic accuracy of PSA in the resistant group may be weaker than in the naive group. The difference in volumetric parameters of patients with short BR compared to long BR supports the idea that 68Ga-PSMA PET/CT can distinguish patients with rapid relapse from others.
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Young S, Liu W, Zukotynski K, Bauman G. Prostate-specific membrane antigen targeted PET/CT for recurrent prostate cancer: a clinician's guide. Expert Rev Anticancer Ther 2021; 21:641-655. [PMID: 33476253 DOI: 10.1080/14737140.2021.1878883] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION PSMA-targeted PET/CT is a 'Next Generation Imaging' technique with superior sensitivity and specificity for detecting recurrent prostate cancer compared with conventional imaging, allowing more accurate staging and re-staging. AREAS COVERED This article reviews the role of PSMA-targeted PET/CT in clinical management of men with recurrent prostate cancer. EXPERT OPINION Through enhanced spatial characterization of recurrent prostate cancer, PSMA-targeted PET/CT has shown significant impact on management decisions. In particular, by identifying men with recurrence confined to the prostate or pelvic nodes, PSMA-targeted PET/CT enables selective deployment of localized salvage therapies for management of biochemical failure after primary treatment with prostatectomy or radiotherapy. In oligometastatic disease, PSMA-targeted PET/CT may improve patient selection and treatment accuracy for metastasis-directed therapy and early phase II studies show encouraging results in delaying the need for systemic therapy. Further, quantitative PSMA-targeted PET/CT for monitoring response and therapeutic PSMA-targeted radiopharmaceuticals are emerging as encouraging treatment options in the setting of castrate-resistant disease.
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Affiliation(s)
- Sympascho Young
- Department of Radiation Oncology, London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada
| | - Wei Liu
- Department of Radiation Oncology, London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada
| | | | - Glenn Bauman
- Department of Radiation Oncology, London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada
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Santos A, Mattiolli A, Carvalheira JB, Ferreira U, Camacho M, Silva C, Costa F, Matheus W, Lima M, Etchebehere E. PSMA whole-body tumor burden in primary staging and biochemical recurrence of prostate cancer. Eur J Nucl Med Mol Imaging 2021; 48:493-500. [PMID: 32789680 DOI: 10.1007/s00259-020-04981-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/27/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE The objective of this study was to evaluate whether 68Ga-PSMA PET/CT whole-body tumor burden (PSMAwbtb) is associated with clinical parameters and laboratory parameters in prostate cancer patients. METHODS We retrospectively evaluated prostate cancer patients submitted to PSMA PET/CT for primary staging purposes or due to biochemical recurrence (BR). PSMAwbtb metrics (total volume of PSMA-avid tumor (PSMA-TV)) and total uptake of PSMA-avid lesions (PSMA-TL) were calculated semi-automatically. Spearman's rank correlations between PSMAwbtb metrics and clinical, laboratory parameters (age, time-to-BR, years of diagnosis of prostate cancer, free and total serum PSA levels, and the Gleason score) and with the highest SUVmax of a lesion (hSUVmax) were analyzed. RESULTS Among the 257 PSMA PET/CT studies, there were 46 scans (17.9%) performed for primary staging and 211 (82.1%) for BR. PSMA-TV and PSMA-TL were calculated for the 157 positive scans (58.8%), which were 43 patients (93.5%) in the primary staging group and 114 patients (54.0%) in the BR group. In the primary staging group, we observed a significant correlation between PSMA-TL and hSUVmax (p = 0.0021). In the BR group, there was a significant direct correlation between PSMA-TL and the variables age (p = 0.0031), total serum PSA values (p = < 0.0001), free serum PSA values (p = < 0.0001), and the hSUVmax (p = < 0.0001). Similar results were obtained for PSMA-TV. CONCLUSION PSMAwbtb has a direct and positive correlation with serum PSA values and age in prostate cancer patients with BR.
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Affiliation(s)
- Allan Santos
- Medicina Nuclear de Campinas, Campinas, São Paulo, Brazil
- Division of Nuclear Medicine of the Department of Radiology, Campinas State University (UNICAMP), Rua Vital Brazil 251, Campinas, 13083-888, Brazil
| | | | - José Bc Carvalheira
- Division of Oncology of the Department of Internal Medicine, Campinas State University (UNICAMP), Campinas, Brazil
| | - Ubirajara Ferreira
- Division of Urology of the Department of Surgery, Campinas State University (UNICAMP), Campinas, Brazil
| | | | - Cleide Silva
- Department of Biostatistics, Campinas State University (UNICAMP), Campinas, Brazil
| | | | - Wagner Matheus
- Division of Urology of the Department of Surgery, Campinas State University (UNICAMP), Campinas, Brazil
| | - Mariana Lima
- Medicina Nuclear de Campinas, Campinas, São Paulo, Brazil
- Division of Nuclear Medicine of the Department of Radiology, Campinas State University (UNICAMP), Rua Vital Brazil 251, Campinas, 13083-888, Brazil
| | - Elba Etchebehere
- Medicina Nuclear de Campinas, Campinas, São Paulo, Brazil.
- Division of Nuclear Medicine of the Department of Radiology, Campinas State University (UNICAMP), Rua Vital Brazil 251, Campinas, 13083-888, Brazil.
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Khansa Z, Neaimeh N, Korek M, Haidar M. Can SUVmax of 68Ga-labeled PSMA Ligand and 18F-choline PET/CT Be Used to Predict the Radiation Dose in Prostate Cancer Patients? HEALTH PHYSICS 2021; 120:80-85. [PMID: 32826522 DOI: 10.1097/hp.0000000000001287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Gallium-68 (Ga)-PSMA and F-Choline are two radionuclides that have already shown high potential for the detection of prostate cancer. The comparison between these two radionuclides has several advantages in radiation protection. The aim of this prospective study was to identify which of these two radionuclides can help in predicting the equivalent dose using the maximum standard uptake value (SUVmax) of normal organs, the kidneys. Two groups of 40 patients (total n = 80) who underwent PET/CT using Ga or F for diagnosis of prostate cancer between April 2018 and December 2018 at the American University of Beirut Medical Center were included. First, the dose rates were measured after 1 h of radionuclide uptake at 1 m distance with background of 0.015 μSv h. Then, SUVmax for kidneys were determined from images obtained with PET/CT 1 h after injection of both radionuclides. The ratios of the equivalent doses to the SUVmax for kidneys were compared for both Ga-PSMA and F-Choline. There is a positive moderate relationship between the SUVmax for kidneys and the Ga dose rate after 1 h of injection at 1 m distance from the abdomen (p-value = 0.023 < 0.05). This relationship is statistically significant. However, there is a very low negative relationship between the SUVmax kidney and F dose rate after 1 h of injection at 1 m distance from the abdomen (p-value = 0.93 > 0.05). This relationship is not statistically significant. This leads to the suggestion that we can predict the equivalent dose due to Ga by indicating the SUVmax from the PET/CT images.
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Affiliation(s)
- Zeinab Khansa
- Department of Physics, Beirut Arab University, P.O. Box 11-5020, Beirut 1107 2809, Lebanon
| | - Nemer Neaimeh
- Diagnostic Radiology department, American University Medical Center, P.O. Box 11-0236, Riad ElSolh 1107 2020, Beirut, Lebanon
| | - Mahmoud Korek
- Department of Physics, Beirut Arab University, P.O. Box 11-5020, Beirut 1107 2809, Lebanon
| | - Mohamad Haidar
- Diagnostic Radiology department, American University Medical Center, P.O. Box 11-0236, Riad ElSolh 1107 2020, Beirut, Lebanon
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Can 68Ga-prostate specific membrane antigen positron emission tomography/computerized tomography provide an accurate lymph node staging for patients with medium/high risk prostate cancer? A diagnostic meta-analysis. Radiat Oncol 2020; 15:227. [PMID: 33004037 PMCID: PMC7528481 DOI: 10.1186/s13014-020-01675-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 09/24/2020] [Indexed: 12/18/2022] Open
Abstract
Objective This article aims to evaluate the diagnostic value of 68Gallium-PSMA positron emission tomography/computerized tomography (68Ga-PSMA PET/CT) for lymph node (LN) staging in patients with prostate cancer (PCa) by a meta-analysis of diagnostic tests.
Methods We systematically retrieved articles from Web of Science, EMBASE, Cochrane Database, PubMed. The time limit is from the creation of the database until June 2019, and Stata 15 was used for calculation and statistical analyses. Results Sensitivity, specificity, positive and negative likelihood ratio (PLR, NLR), diagnostic odds ratio (DOR) and 95% confidence intervals (CI) be used to evaluate the diagnostic value. A total of 10 studies were included in our meta-analysis, which included 701 individuals. The results of each consolidated summary are as follows: sensitivity of 0.84 (95% CI 0.55–0.95), specificity of 0.95 (95% CI 0.87–0.98), PLR and NLR was 17.19 (95% CI 6.27, 47.17) and 0.17 (95% CI 0.05–0.56), respectively. DOR of 100 (95% CI 18–545), AUC of 0.97 (95% CI 0.95–0.98). Conclusion Our study demonstrates that 68Ga-PSMA PET/CT has a high overall diagnostic value for LN staging in patients with moderate and high-risk PCa. But our conclusions still require a larger sample size, multi-center prospective randomized controlled trial to verify.
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Prostate-specific Membrane Antigen Positron Emission Tomography/Computed Tomography Compared with Conventional Imaging for Initial Staging of Treatment-naïve Intermediate- and High-risk Prostate Cancer: A Retrospective Single-center Study. Eur Urol Oncol 2020; 5:544-552. [DOI: 10.1016/j.euo.2020.08.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 08/06/2020] [Accepted: 08/28/2020] [Indexed: 12/24/2022]
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Prostate Cancer: Prostate-specific Membrane Antigen Positron-emission Tomography/Computed Tomography or Positron-emission Tomography/Magnetic Resonance Imaging for Staging. Top Magn Reson Imaging 2020; 29:59-66. [PMID: 32015295 DOI: 10.1097/rmr.0000000000000229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Positron-emission tomography (PET) with prostate-specific membrane antigen (PSMA) has been increasingly used to image prostate cancer in the last decade. In the staging setting several studies have already been published suggesting PSMA PET can be a valuable tool. They, however, did not translate into recommendations by guidelines. Both PSMA PET/computed tomography (CT) and PET/magnetic resonance imaging have been investigated in the staging setting, showing higher detection rate of prostate cancer lesions over the conventional imaging work-up and some studies already showed an impact on disease management. The aim of this review is to provide an overview of the existing published data regarding PSMA PET for staging prostate cancer, with emphasis on PET/magnetic resonance imaging. Despite the fact that PSMA is a relatively new tool and not officially recommended for staging yet, there are >50 original studies in the literature assessing PSMA PET performance in the staging setting of prostate cancer, and some meta-analyses.
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Tu X, Zhang C, Liu Z, Shen G, Wu X, Nie L, Chang T, Xu H, Bao Y, Yang L, Wei Q. The Role of 68Ga-PSMA Positron Emission Tomography/Computerized Tomography for Preoperative Lymph Node Staging in Intermediate/High Risk Patients With Prostate Cancer: A Diagnostic Meta-Analysis. Front Oncol 2020; 10:1365. [PMID: 33014777 PMCID: PMC7461818 DOI: 10.3389/fonc.2020.01365] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 06/29/2020] [Indexed: 02/05/2023] Open
Abstract
Purpose: To evaluate the accuracy of 68Ga-PSMA positron emission tomography/computerized tomography (PET/CT) for preoperative lymph node staging using histopathological results of pelvic lymph node dissection (PLND) as reference standard in patients with intermediate/high risk of prostate cancer. Material and Methods: A systematic search of PubMed, Embase, and the Cochrane Library was completed up to May 2020. We included studies investigating accuracy of 68Ga-PSMA PET/CT in primary lymph node staging before radical prostatectomy and PLND. The pooled sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), diagnostic odds ratio (DOR), and the summary receiver operating characteristic (SROC) curve with an area under the curve (AUC) were synthesized. Results: Eleven studies comprising 904 patients were identified. Based on per-patient analysis, the pooled sensitivity and specificity reached 0.63 (95% CI: 0.46–0.78) and 0.93 (95% CI: 0.88–0.96), respectively, with the DOR of 22 (95% CI: 10–47). An overall accuracy was revealed by the SROC curve with AUC of 0.91 (95% CI: 0.88–0.93). Using the lymph node as unit, the pooled sensitivity and specificity were 0.70 (95% CI: 0.49–0.85) and 0.99 (95% CI: 0.96–1.00), respectively. And the DOR reached 167 (95% CI: 40–695) with an AUC of 0.96 (95% CI: 0.94–0.98). The pooled PPV and NPV all reached above 0.8 on basis of per-patient or per-node analysis. Conclusions:68Ga-PSMA PET/CT represented as a promising test for preoperative lymph node staging and patients without lymph node metastatic status can rarely be misdiagnosed. However, its sensitivity ought to be improved before forgoing PLND.
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Affiliation(s)
- Xiang Tu
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Chichen Zhang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China.,West China School of Clinical Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Zhenhua Liu
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Guohua Shen
- Laboratory of Clinical Nuclear Medicine, Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoai Wu
- Laboratory of Clinical Nuclear Medicine, Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Ling Nie
- State Key Laboratory of Biotherapy, Department of Pathology and Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, China
| | - Tiancong Chang
- West China School of Clinical Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - He Xu
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Yige Bao
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Lu Yang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Qiang Wei
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
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An Intelligent Decision-Making Support System for the Detection and Staging of Prostate Cancer in Developing Countries. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2020; 2020:5363549. [PMID: 32879636 PMCID: PMC7448109 DOI: 10.1155/2020/5363549] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 06/11/2020] [Indexed: 02/08/2023]
Abstract
Most developing countries face huge challenges in the medical field; scarce medical resources and inadequate medical personnel will affect the development and stability of the society. Therefore, for most developing countries, the development of intelligent medical systems can greatly alleviate the social contradictions arising from this problem. In this study, a new data decision-making intelligent system for prostate cancer based on perceptron neural network is proposed, which mainly makes decisions by associating some relevant disease indicators and combining them with medical images. Through data collection, analysis and integration of medical data, as well as the disease detection and decision-making process, patients are given an auxiliary diagnosis and treatment, so as to solve the problems and social contradictions faced by most developing countries. Through the study of hospitalization information of more than 8,000 prostate patients in three hospitals, about 2,156,528 data items were collected and compiled for experiment purposes. Experimental data shows that when the patient base increases from 200 to 8,000, the accuracy of the machine-assisted diagnostic system will increase from 61% to 87%, and the doctor's diagnosis rate will be reduced to 81%. From the study, it is concluded that when the patient base reaches a certain number, the diagnostic accuracy of the machine-assisted diagnosis system will exceed the doctor's expertise. Therefore, intelligent systems can help doctors and medical experts treat patients more effectively.
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Haxhimolla J, Kua B, Gilbourd D, Haxhimolla H. PSMA PET Scan Era: A Changing Paradigm PSMA PET and Lymph Node Dissection for Prostate Cancer Management. Semin Oncol Nurs 2020; 36:151044. [PMID: 32723519 DOI: 10.1016/j.soncn.2020.151044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Staging of extra-prostatic prostate cancer has traditionally been assessed by computerised tomography (CT), bone scan, and where indicated, pelvic lymph node dissection at the time of surgery. The advent of the prostate-specific membrane antigen (PSMA) positron emission tomography (PET) scan shows promise in improving the accuracy of preoperative staging of this cancer. The role of pelvic lymph node dissection and its associated morbidity will be examined. This article will review current literature assessing the current role of PSMA PET and lymph node dissection in the staging and treatment of prostate cancer. DATA SOURCES Peer-reviewed literature and databases, including Medline and PubMed. CONCLUSIONS PSMA PET/CT appears to be a promising and superior staging investigation that may replace bone scan and CT scan in guiding treatment decision-making. It has high specificity and positive predictive value, thus in patients with low-risk prostate cancer, unnecessary extended pelvic lymph node dissection (ePLND) may be avoided. It would also help detect lymph nodes in patients with intermediate- or high-risk prostate cancer where ePLND may be required. ePLND remains the gold standard in staging high-risk patients because the PSMA PET/CT scan may under-stage the cancer. IMPLICATION FOR NURSING PRACTICE Given the increased utilisation of PSMA PET/CT scan as a primary staging investigation in clinical practice for prostate cancer and as an alternative to bone scan and CT scan, it is timely for prostate cancer specialist nurses to understand and recognise the specificity and sensitivity of PSMA PET/CT scans in prostate cancer staging. Because ePLND is the gold standard for staging high-risk disease, prostate cancer specialist nurses should be aware of the complications associated with pelvic lymph node dissection to optimise supportive care for men affected by complications from ePLND.
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Affiliation(s)
| | - Boon Kua
- Wesley Hospital Brisbane, Auchenflower, QLD, Australia
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35
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Overall survival comparison between androgen deprivation therapy (ADT) plus external beam radiation therapy (EBRT) vs ADT plus EBRT with brachytherapy boost in clinically node-positive prostate cancer. Brachytherapy 2020; 19:557-566. [PMID: 32624405 DOI: 10.1016/j.brachy.2020.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/11/2020] [Accepted: 05/29/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE Optimal therapy for clinically node-positive, nonmetastatic (cN1) prostate cancer (PC) patients remains controversial, ranging from aggressive local therapy to palliative systematic therapy alone. Despite guideline support, it is unclear if a brachytherapy (BT) boost should be considered for cN1 patients as these patients were excluded from randomized trials establishing its benefit. Herein, we compare definitive radiation therapy (RT) with or without a BT boost in cN1 PC. METHODS AND MATERIALS The National Cancer Database was used to identify men with cN1 PC treated with definitive RT and concomitant androgen deprivation therapy between 2004 and 2013. Overall survival (OS) was compared between those who received external beam RT (EBRT) or combination EBRT plus BT boost (EBRT + BT) using Kaplan-Meier with propensity score matching and Cox proportional hazards. RESULTS With a median followup of 48.5 months, 1,650 patients were eligible for this analysis, 103 (6.2%) of whom received EBRT + BT. Younger age, no medical comorbidities, and Gleason score of six were associated with higher likelihood of receiving EBRT + BT over EBRT alone. The mean (median) OS for EBRT and EBRT + BT was 99.0 (110.6) months vs 109.2 (not reached) months, respectively (p = 0.048). However, no significance difference in OS was observed between the groups after propensity score matching. On multivariable analysis, EBRT + BT was not significantly associated with improved OS (adjusted HR 0.67, 95% CI, 0.41-1.07, p = 0.098). CONCLUSIONS In this retrospective, observational study of patients with cN1 PC treated with definitive RT and concomitant androgen deprivation therapy, EBRT + BT had an unadjusted improvement in OS compared with EBRT alone that lost statistical significance after multivariable adjustment and propensity score matching.
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Lebastchi AH, Gupta N, DiBianco JM, Piert M, Davenport MS, Ahdoot MA, Gurram S, Bloom JB, Gomella PT, Mehralivand S, Turkbey B, Pinto PA, George AK. Comparison of cross-sectional imaging techniques for the detection of prostate cancer lymph node metastasis: a critical review. Transl Androl Urol 2020; 9:1415-1427. [PMID: 32676426 PMCID: PMC7354341 DOI: 10.21037/tau.2020.03.20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Conventional staging for prostate cancer (PCa) is performed for men diagnosed with unfavorable-intermediate or higher risk disease. Computed tomography (CT) of the abdomen and pelvis and whole body bone scan remains the standard of care for the detection of visceral, nodal, and bone metastasis. The implementation of the 2012 United States Preventive Services Task Force recommendation against routine prostate specific antigen (PSA) screening resulted in a rise of metastatic PCa at the time of diagnosis, emphasizing the importance of effective imaging modalities for evaluating metastatic disease. CT plays a major role in clinical staging at the time of PCa diagnosis, but multi-parametric magnetic resonance imaging (MRI) is now integrated into many prostate biopsy protocols for the detection of primary PCa, and may be a surrogate for CT for nodal staging. Current guidelines incorporate both CT and MRI as appropriate cross-sectional imaging modalities for the identification of nodal metastasis in indicated patients. There is an ongoing debate about the utility of traditional cross-sectional imaging modalities as well as advanced imaging modalities in detection of both organ-confined PCa detection and nodal involvement.
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Affiliation(s)
- Amir H Lebastchi
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Nikhil Gupta
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - John M DiBianco
- Department of Urology, George Washington University Medical School, Washington D.C., USA
| | - Morand Piert
- Department of Urology, University of Michigan, Ann Arbor, MI, USA
| | | | - Michael A Ahdoot
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Sandeep Gurram
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jonathan B Bloom
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Patrick T Gomella
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | - Baris Turkbey
- Molecular Imaging Program, National Cancer Institute, Bethesda, MD, USA
| | - Peter A Pinto
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Arvin K George
- Department of Urology, University of Michigan, Ann Arbor, MI, USA
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37
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Madsen C, Østergren P, Haarmark C. The Value of 68Ga-PSMA PET/CT Following Equivocal 18F-NaF PET/CT in Prostate Cancer Patients. Diagnostics (Basel) 2020; 10:diagnostics10060352. [PMID: 32481743 PMCID: PMC7344413 DOI: 10.3390/diagnostics10060352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 05/26/2020] [Accepted: 05/26/2020] [Indexed: 11/16/2022] Open
Abstract
Background: Inconclusive bone scans are a challenge but there is no consensus about follow-up imaging. We evaluated the use of 68gallium-labelled prostate-specific membrane antigen (68Ga-PSMA) PET/CT if 18F-sodium fluoride (18F-NaF) PET/CT was inconclusive. Methods: This retrospective study included patients with no previously known bone metastases who had one or more equivocal bone lesions on 18F-NaF PET/CT and underwent additional 68Ga-PSMA PET/CT. The bone lesions were deemed as true metastases or not based on follow-up by surveying supplemental imaging modalities and hospital records. A subgroup of patients with “most valid follow-up” was created, which included patients with unmeasurable PSA after prostatectomy or subsequent imaging (additional 18F-NaF PET/CT, 68Ga-PSMA PET/CT, CT, or MRI). Results: Of the 2918 patients referred for 18F-NaF PET/CT from the department of urology in the inclusion period, 51 (1.7%) were inconclusive regarding bone metastases and underwent additional 68Ga-PSMA PET/CT. Thirteen of these patients (25%) were ultimately diagnosed with bone metastases. Patient-based sensitivity, specificity, and accuracy of additional 68Ga-PSMA PET/CT were 100%, 95%, and 96%, respectively. In patients with “most valid follow-up”, the same parameters were 100%, 93%, and 94%, respectively. Conclusion: 68Ga-PSMA PET/CT is an excellent complementary modality in when 18F-NaF PET/CT is equivocal.
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Affiliation(s)
- Claus Madsen
- Department of Nuclear Medicine, Copenhagen University Hospital Herlev and Gentofte, DK-2730 Herlev, Denmark;
- Correspondence:
| | - Peter Østergren
- Department of Urology, Copenhagen University Hospital Herlev and Gentofte, Borgmester Ib Juuls Vej 1, DK-2730 Herlev, Denmark;
| | - Christian Haarmark
- Department of Nuclear Medicine, Copenhagen University Hospital Herlev and Gentofte, DK-2730 Herlev, Denmark;
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38
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Vilaseca A, Ribal MJ. Re: Detection and Localisation of Primary Prostate Cancer Using 68Ga-PSMA PET/CT Compared with mpMRI and Radical Prostatectomy Specimens. Eur Urol 2020; 77:757-758. [PMID: 32115261 DOI: 10.1016/j.eururo.2020.02.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 02/19/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Antoni Vilaseca
- Department of Urology, Hospital Clínic de Barcelona, Barcelona, Spain; Universitat de Barcelona, Barcelona, Spain
| | - Maria J Ribal
- Department of Urology, Hospital Clínic de Barcelona, Barcelona, Spain; Universitat de Barcelona, Barcelona, Spain.
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39
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Tilki D, Mandel P, Karakiewicz PI, Heinze A, Huland H, Graefen M, Knipper S. The impact of very high initial PSA on oncological outcomes after radical prostatectomy for clinically localized prostate cancer. Urol Oncol 2020; 38:379-385. [PMID: 32001198 DOI: 10.1016/j.urolonc.2019.12.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 12/17/2019] [Accepted: 12/31/2019] [Indexed: 01/19/2023]
Abstract
BACKGROUND To analyze oncological outcomes of very high-risk patients with initial PSA 50-99.9 and ≥100 ng/ml who underwent radical prostatectomy (RP) for clinically localized prostate cancer. METHODS Overall, 2,811 RP patients (1992-2018) with negative preoperative CT-scan and bone scintigraphy were included. The impact of preoperative PSA level, categorized as 20-49.9 (n = 2,195) vs. 50-99.9 (n = 454) vs. ≥100 ng/ml (n = 162) on biochemical recurrence (BCR)-free survival, metastasis-free survival (MFS) and cancer-specific survival (CSS) was assessed using Kaplan-Meier and multivariable Cox regression models. RESULTS Median follow-up was 47.5 months. Ten-year BCR-free survival rates were 46.9 vs. 32.1 vs. 29.0% within PSA-categories 20-49.9 vs. 50-99.9 vs. ≥100 ng/ml, respectively (P < 0.001). Ten-year MFS rates were 78.4 vs. 67.2 vs. 37.3% within PSA-categories 20-49.9 vs. 50-99.9 vs. ≥100 ng/ml (P < 0.001). 10-year CSS rates were 93.7 vs. 85.5 vs. 66.7% within PSA-categories 20-49.9 vs. 50-99.9 vs. ≥100 ng/ml (P < 0.001). In multivariable analyses, PSA-categories 50-99.9 ng/ml and ≥100 ng/ml were independently predicting higher risk of BCR (hazard ratio [HR]: 1.3 and 1.4), metastatic progression (HR: 1.4 and 2.3), and cancer-specific mortality (CSM, HR: 1.9 and 3.4) compared with PSA-category 20-49.9 ng/ml. CONCLUSION Initial PSA levels ≥50 ng/ml are associated with higher risk of BCR, metastatic progression, and CSM compared with high-risk patients with PSA of 20-49.9 ng/ml. In consequence, these patients may be counseled about a potentially increased risk of undetected metastases prior to RP possibly necessitating intensified multimodal treatments in the future.
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Affiliation(s)
- Derya Tilki
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany; Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Philipp Mandel
- Department of Urology, University Hospital Frankfurt, Frankfurt, Germany
| | - Pierre I Karakiewicz
- Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montreal Health Center, Montreal, Quebec, Canada
| | - Alexander Heinze
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Hartwig Huland
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Graefen
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Sophie Knipper
- Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany; Cancer Prognostics and Health Outcomes Unit, Division of Urology, University of Montreal Health Center, Montreal, Quebec, Canada.
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40
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Petersen LJ, Zacho HD. PSMA PET for primary lymph node staging of intermediate and high-risk prostate cancer: an expedited systematic review. Cancer Imaging 2020; 20:10. [PMID: 31973751 PMCID: PMC6979382 DOI: 10.1186/s40644-020-0290-9] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 01/13/2020] [Indexed: 01/05/2023] Open
Abstract
Background PSMA PET is a promising method for primary lymph node staging in prostate cancer. However, recent systematic reviews have identified only a limited number of studies with histopathology as a reference test. Methods A systematic search was performed in PubMed and the Cochrane Library. An expedited systematic review was performed where we identified diagnostic studies in prostate cancer where a preoperative PSMA PET for primary lymph node staging was compared to histopathology. The trials must have diagnostic data on a patient level. Results Eighteen eligible clinical trials included 969 patients. The median patient number per study was 32 (range 10 to 208). Five trials were prospective, and nine trials had a consecutive enrolment of patients. Sixteen studies used Ga-68-PSMA-11; there was one study with Cu-64-PSMA and one study with F-18-DCDFPyL. Twelve studies used PET/CT, four trials used PET/MR. Most trials included patients with intermediate and high-risk. Diagnostic accuracy varied notably among the studies; sensitivity ranged from 23 to 100%, specificity 67–100%, positive predictive value 20–100%, and negative predictive value 41–100%. Weighted sensitivity was 59%, weighted specificity was 93%. Four studies compared PSMA PET with anatomical imaging (CT or MRI); in all cases, sensitivity and specificity were superior with PSMA PET. Three studies compared PSMA PET with multi-parametric or diffusion-weighted MRI with mixed results. Conclusions PSMA PET showed promising diagnostic accuracy for primary lymph node staging with pathology as reference. Recommendation for PSMA PET for high-risk patients in clinical guidelines should be supported by confirmatory, prospective trials with patient-relevant outcomes.
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Affiliation(s)
- Lars J Petersen
- Department of Nuclear Medicine and Clinical Cancer Research Centre, Aalborg University Hospital, Hobrovej 18-22, DK-9100, Aalborg, Denmark. .,Department of Clinical Medicine, Aalborg University, Sdr. Skov Vej 15, DK-9000, Aalborg, Denmark.
| | - Helle D Zacho
- Department of Nuclear Medicine and Clinical Cancer Research Centre, Aalborg University Hospital, Hobrovej 18-22, DK-9100, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Sdr. Skov Vej 15, DK-9000, Aalborg, Denmark
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41
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Fennell JT, Gkika E, Grosu AL. Molecular Imaging in Photon Radiotherapy. Recent Results Cancer Res 2020; 216:845-863. [PMID: 32594409 DOI: 10.1007/978-3-030-42618-7_27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nowadays, more than ever before, the treatment of cancer patients requires an interdisciplinary approach more than ever. Radiation therapy (RT) has become an indispensable pillar of cancer treatment early on, offering a local, curative treatment option and symptom control in palliative cases.
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Affiliation(s)
| | - Eleni Gkika
- Department of Radiation Oncology, University of Freiburg, Freiburg, Germany
| | - Anca L Grosu
- Department of Radiation Oncology, University of Freiburg, Freiburg, Germany.
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42
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Rahman LA, Rutagengwa D, Lin P, Lin M, Yap J, Lai K, Mancuso P, Rathore P, Haghighi K, Gassner P, Wong LH, Lalak N. High negative predictive value of 68Ga PSMA PET-CT for local lymph node metastases in high risk primary prostate cancer with histopathological correlation. Cancer Imaging 2019; 19:86. [PMID: 31829288 PMCID: PMC6907253 DOI: 10.1186/s40644-019-0273-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 11/26/2019] [Indexed: 12/20/2022] Open
Abstract
Background Current guidelines highlight the importance of accurate staging in the management and prognostication of high risk primary prostate cancer. Conventional radiologic imaging techniques are insufficient to reliably detect lymph node metastases in prostate cancer. Despite promising results, there is limited published data on the diagnostic accuracy of PSMA PET-CT to assess local nodal metastases prior to radical prostatectomy. This study aims to assess the diagnostic efficacy of 68Ga PSMA PET-CT in local lymph node staging of high risk primary prostate cancer when compared to histopathological findings following radical prostatectomy with pelvic lymph node dissection. Methods We retrospectively analysed consecutive patients with high risk primary prostate cancer referred by urologists for primary staging PSMA PET-CT using a 68Ga-labeled PSMA ligand, Glu-NH-CO-NHLys-(Ahx)-[HBEDD-CC], from October 2015 to October 2017. The scans of patients who underwent radical prostatectomy with pelvic lymph node dissection were interpreted by the consensus reading of two experienced nuclear medicine physicians blinded to clinical and histopathological data. The contemporaneous records of the referring urologists were retrospectively reviewed for noteworthy unexpected PET findings that altered their personal preference for surgical management. Results Seventy-one patients were recruited and analysed. PSMA PET-CT showed findings compatible with local disease in 47 patients (66.2%), lymph node metastases in 10 patients (14.1%) and distant metastases in 14 patients (19.7%). Twenty-eight patients (twenty-seven of whom had local disease only) underwent surgery yielding 214 lymph nodes, all of which were negative on histopathological analysis. On a node-based analysis, 213 of 214 lymph nodes were accurately identified as negative for disease with a negative predictive value of 100%. 11 patients had unexpected PET findings contemporaneously documented by urologists to alter their preference for surgical management. Conclusions PSMA PET-CT appears to have a high negative predictive value for local lymph node metastases in high risk primary prostate cancer when compared to histopathological findings following radical prostatectomy with pelvic lymph node dissection.
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Affiliation(s)
- Labib Ataur Rahman
- Department of Nuclear Medicine and PET, Liverpool Hospital, Sydney, Australia. .,South Western Sydney Clinical School, University of New South Wales, Sydney, Australia.
| | - Damacent Rutagengwa
- Department of Urology, Campbelltown Hospital, Sydney, Australia.,School of Medicine, Western Sydney University, Sydney, Australia
| | - Peter Lin
- Department of Nuclear Medicine and PET, Liverpool Hospital, Sydney, Australia.,South Western Sydney Clinical School, University of New South Wales, Sydney, Australia.,School of Medicine, Western Sydney University, Sydney, Australia
| | - Michael Lin
- Department of Nuclear Medicine and PET, Liverpool Hospital, Sydney, Australia.,South Western Sydney Clinical School, University of New South Wales, Sydney, Australia.,School of Medicine, Western Sydney University, Sydney, Australia
| | - June Yap
- Department of Nuclear Medicine and PET, Liverpool Hospital, Sydney, Australia
| | - Ken Lai
- Department of Nuclear Medicine and PET, Liverpool Hospital, Sydney, Australia.,School of Medicine, Western Sydney University, Sydney, Australia
| | - Pascal Mancuso
- Department of Urology, Campbelltown Hospital, Sydney, Australia.,Department of Urology, Liverpool Hospital, Sydney, Australia
| | - Prem Rathore
- Department of Urology, Campbelltown Hospital, Sydney, Australia.,Department of Urology, Liverpool Hospital, Sydney, Australia
| | - Kayvan Haghighi
- Department of Urology, Campbelltown Hospital, Sydney, Australia.,Department of Urology, Liverpool Hospital, Sydney, Australia
| | - Paul Gassner
- Department of Urology, Campbelltown Hospital, Sydney, Australia.,Department of Urology, Liverpool Hospital, Sydney, Australia
| | - Lee Hao Wong
- Department of Urology, Liverpool Hospital, Sydney, Australia
| | - Nestor Lalak
- Department of Urology, Campbelltown Hospital, Sydney, Australia.,Department of Urology, Liverpool Hospital, Sydney, Australia
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43
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Motterle G, Ahmed ME, Andrews JR, Karnes RJ. The Role of Radical Prostatectomy and Lymph Node Dissection in Clinically Node Positive Patients. Front Oncol 2019; 9:1395. [PMID: 31921652 PMCID: PMC6914693 DOI: 10.3389/fonc.2019.01395] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 11/26/2019] [Indexed: 12/12/2022] Open
Abstract
Patients diagnosed with clinically node-positive prostate cancer represent a population that has historically been thought to harbor systemic disease. Increasing evidence supports the role of local therapies in advanced disease, but few studies have focused on this particular population. In this review we discuss the limited role for conventional cross sectional imaging for accurate nodal staging and how molecular imaging, although early results are promising, is still far from widespread clinical utilization. To date, evidence regarding the role of radical prostatectomy and pelvic lymph node dissection in clinically node-positive disease comes from retrospective studies; overall surgery appears to be a reasonable option in selected patients, with improved oncological outcomes that could be attributed to both to its potential curative role in disease localized to the pelvis and to the improved staging to help guide subsequent multimodal treatment. The role of surgery in clinically node-positive disease needs higher-level evidence but meanwhile, radical prostatectomy with extended pelvic lymph-node dissection can be offered as a part of a multimodality approach with the patient.
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Affiliation(s)
- Giovanni Motterle
- Department of Urology, Mayo Clinic, Rochester, MN, United States.,Department of Surgery, Oncology and Gastroenterology-Urology, Padova, Italy
| | - Mohamed E Ahmed
- Department of Urology, Mayo Clinic, Rochester, MN, United States
| | - Jack R Andrews
- Department of Urology, Mayo Clinic, Rochester, MN, United States
| | - R Jeffrey Karnes
- Department of Urology, Mayo Clinic, Rochester, MN, United States
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44
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[Prostate-specific membrane antigen (PSMA)-based diagnostics and treatment of prostate cancer]. Urologe A 2019; 58:1429-1434. [PMID: 31705143 DOI: 10.1007/s00120-019-01067-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND Since their clinical introduction in 2011, PSMA-PET/CT (PSMA: prostate-specific membrane antigen) as well as PSMA therapy of prostate cancer (PC) have spread rapidly worldwide. OBJECTIVES To summarize the current knowledge about both PSMA-PET/CT and PSMA therapy of PC. METHODS The knowledge derived from the literature as well as the authors' experiences were collected in this review. RESULTS PSMA-PET/CT demonstrates a very high sensitivity and specificity for the detection of recurrent PC as well as for the primary staging of intermediate- and high-risk PC. PSMA therapy shows promising results in third-line treatment for patients with castration-resistant, metastatic PC. CONCLUSIONS PSMA-PET/CT is meanwhile established as the gold standard for the detection of recurrent PC and is in the process of assuming the same role for primary staging of intermediate- to high-risk PC. PSMA therapy serves as a promising third-line therapy in an increasing number of centers.
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45
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Ferraro DA, Garcia Schüler HI, Muehlematter UJ, Eberli D, Müller J, Müller A, Gablinger R, Kranzbühler H, Omlin A, Kaufmann PA, Hermanns T, Burger IA. Impact of 68Ga-PSMA-11 PET staging on clinical decision-making in patients with intermediate or high-risk prostate cancer. Eur J Nucl Med Mol Imaging 2019; 47:652-664. [PMID: 31802175 DOI: 10.1007/s00259-019-04568-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 10/02/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND Accurate staging is of major importance to determine the optimal treatment modality for patients with prostate cancer. Positron emission tomography (PET) with prostate-specific membrane antigen (PSMA) is a promising technique that outperformed conventional imaging in the detection of nodal and distant metastases in previous studies. However, it is still unclear whether the superior sensitivity and specificity also translate into improved patient management. The aim of this study was to assess the performance of 68Ga-PSMA-11 PET for staging of intermediate and high-risk prostate cancer and its potential impact on disease management. METHODS In this retrospective analysis, 116 patients who underwent 68Ga-PSMA-11 PET/CT or MRI scans for staging of their intermediate or high-risk prostate cancer between April 2016 and May 2018 were included. The potential impact of 68Ga-PSMA-11 PET staging on patient management was assessed within a simulated multidisciplinary tumour board where hypothetical treatment decisions based on clinical information and conventional imaging alone was determined. This treatment decision was compared with the treatment recommendation based on clinical information and 68Ga-PSMA-11 PET imaging. RESULTS The primary tumour was positive on 68Ga-PSMA-11 PET in 113 patients (97%). Nodal metastases were detected in 28 patients (24%) and bone metastases in 14 patients (12%). Compared with clinical staging and conventional imaging, 68Ga-PSMA-11 PET resulted in new information in 42 of 116 patients (36%). In 32 of 116 patients (27%), this information would most likely have changed the management into a different therapy modality (15 patients, 13%) or adjusted treatment details (e.g. modification of radiotherapy field or lymph node dissection template; 17 patients, 14%). CONCLUSION Information from 68Ga-PSMA-11 PET staging has the potential to change the management in more than a fourth of the patients who underwent PET staging for their intermediate to high-risk prostate cancer. Whether these more personalized 68Ga-PSMA-11 PET-based treatment decisions will improve patient outcome needs further investigation.
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Affiliation(s)
- Daniela A Ferraro
- Department of Nuclear Medicine, University Hospital Zürich, University of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Helena I Garcia Schüler
- Department of Radiation Oncology, University Hospital Zürich, University of Zürich, Zürich, Switzerland
| | - Urs J Muehlematter
- Department of Nuclear Medicine, University Hospital Zürich, University of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
- Department of Interventional and Diagnostic Radiology, University Hospital Zürich, University of Zürich, Zürich, Switzerland
| | - Daniel Eberli
- Department of Urology, University Hospital Zürich, University of Zürich, Zürich, Switzerland
| | - Julian Müller
- Department of Nuclear Medicine, University Hospital Zürich, University of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | | | | | - Helmut Kranzbühler
- Department of Radiation Oncology, Stadtspital Triemli, Zürich, Switzerland
| | - Aurelius Omlin
- Department of Medical Oncology and Haematology, Cantonal Hospital St. Gallen, University of Bern, Bern, Switzerland
| | - Philipp A Kaufmann
- Department of Nuclear Medicine, University Hospital Zürich, University of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Thomas Hermanns
- Department of Urology, University Hospital Zürich, University of Zürich, Zürich, Switzerland
| | - Irene A Burger
- Department of Nuclear Medicine, University Hospital Zürich, University of Zürich, Rämistrasse 100, 8091, Zürich, Switzerland.
- Department of Nuclear Medicine, Kantonsspital Baden, Baden, Switzerland.
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Luiting HB, van Leeuwen PJ, Busstra MB, Brabander T, van der Poel HG, Donswijk ML, Vis AN, Emmett L, Stricker PD, Roobol MJ. Use of gallium-68 prostate-specific membrane antigen positron-emission tomography for detecting lymph node metastases in primary and recurrent prostate cancer and location of recurrence after radical prostatectomy: an overview of the current literature. BJU Int 2019; 125:206-214. [PMID: 31680398 PMCID: PMC7383738 DOI: 10.1111/bju.14944] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Objectives To review the literature to determine the sensitivity and specificity of gallium‐68 prostate‐specific membrane antigen (68Ga‐PSMA) positron‐emission tomography (PET) for detecting pelvic lymph node metastases in patients with primary prostate cancer (PCa), and the positive predictive value in patients with biochemical recurrence (BCR) after initial curative treatment, and, in addition, to determine the detection rate and management impact of 68Ga‐PSMA PET in patients with BCR after radical prostatectomy (RP). Materials and Methods We performed a comprehensive literature search. Search terms used in MEDLINE, EMBASE and Science Direct were ‘(PSMA, 68Ga‐PSMA, 68Gallium‐PSMA, Ga‐68‐PSMA or prostate‐specific membrane antigen)’ and ‘(histology, lymph node, staging, sensitivity, specificity, positive predictive value, recurrence, recurrent or detection)’. Relevant abstracts were reviewed and full‐text articles obtained where possible. References to and from obtained articles were searched to identify further relevant articles. Results Nine retrospective and two prospective studies described the sensitivity and specificity of 68Ga‐PSMA PET for detecting pelvic lymph node metastases before initial treatment, which ranged from 33.3% to 100% and 80% to 100%, respectively. In eight retrospective studies, the positive predictive value of 68Ga‐PSMA PET in patients with BCR before salvage lymph node dissection ranged from 70% to 100%. The detection rate of 68Ga‐PSMA PET in patients with BCR after RP in the PSA subgroups <0.2 ng/mL, 0.2–0.49 ng/mL and 0.5 to <1.0 ng/mL ranged from 11.3% to 50.0%, 20.0% to 72.7% and 25.0% to 87.5%, respectively. Conclusion The review results showed that 68Ga‐PSMA PET had a high specificity for the detection of pelvic lymph node metastases in primary PCa. Furthermore, 68Ga‐PSMA PET had a very high positive predictive value in detecting lymph node metastases in patients with BCR. By contrast, sensitivity was only moderate; therefore, based on the currently available literature, 68Ga‐PSMA PET cannot yet replace pelvic lymph node dissection to exclude lymph node metastases. In the salvage phase, 68Ga‐PSMA PET had both a high detection rate and impact on radiotherapy planning in early BCR after RP.
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Affiliation(s)
- Henk B Luiting
- Department of Urology, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Pim J van Leeuwen
- Department of Urology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Martijn B Busstra
- Department of Urology, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Tessa Brabander
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Henk G van der Poel
- Department of Urology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Maarten L Donswijk
- Department of Nuclear Medicine, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - André N Vis
- Department of Urology, Amsterdam UMC, Location VUmc, Amsterdam, The Netherlands
| | - Louise Emmett
- Department of Nuclear Medicine, St Vincent's Hospital, Sydney, NSW, Australia.,University of New South Wales, Sydney, NSW, Australia
| | - Phillip D Stricker
- St. Vincent's Prostate Cancer Centre, Darlinghurst, NSW, Australia.,Garvan Institute of Medical Research, Kinghorn Cancer Centre, Darlinghurst, NSW, Australia.,St Vincent's Clinical School, UNSW, Sydney, NSW, Australia
| | - Monique J Roobol
- Department of Urology, Erasmus University Medical Centre, Rotterdam, The Netherlands
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Wang B, Gao J, Zhang Q, Fu Y, Liu G, Shi J, Li D, Wang F, Guo H. Diagnostic Value of 68Ga-PSMA PET/CT for Detection of Phosphatase and Tensin Homolog Expression in Prostate Cancer: A Pilot Study. J Nucl Med 2019; 61:873-880. [PMID: 31757845 DOI: 10.2967/jnumed.119.236059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 10/22/2019] [Indexed: 12/12/2022] Open
Abstract
Our purpose was to explore the value of 68Ga-prostate-specific membrane antigen (PSMA) PET/CT for detection of phosphatase and tensin homolog (PTEN)-loss prostate cancer. Methods: We retrospectively enrolled 75 patients who underwent multiparametric MRI and 68Ga-PSMA PET/CT before radical prostatectomy. Lesions were outlined on pathologic images, and regions of interest were drawn on matched multiparametric MRI and PET/CT images. Imaging parameters, including average apparent diffusion coefficient and SUVmax, were derived. Immunohistochemical staining was performed to evaluate the PTEN status. The diagnostic performance of imaging parameters was analyzed by receiver-operating-characteristic analysis. Univariate logistic regression analyses were used to evaluate the association between clinical and imaging variables and PTEN status. Results: In total, 103 lesions from 75 patients were analyzed. Of these lesions, 38 of 103 (36.9%) showed PTEN-loss status. Our study showed a strong association between SUVmax and PTEN-loss tumors both in the per-patient analysis (P < 0.01) and in the per-lesion analysis (P < 0.01), yielding sensitivity and specificity of 0.80 and 0.77, respectively, in the per-patient analysis and 0.83 and 0.74, respectively, in the per-lesion analysis. Meanwhile, higher pathologic PSMA expression was found in the PTEN-deficiency tumors. However, there was no significant difference between PTEN-loss tumors and PTEN-intact tumors using parameters such as average apparent diffusion coefficient (P > 0.05) and score on the Prostate Imaging Reporting and Data System, version 2 (P > 0.05). Surprisingly, SUVmax was a significant predictor for detection of PTEN-loss tumors (odds ratio of 7.56 and 95% confidence interval of 2.18-26.24 on per-patient analysis; odds ratio of 13.66 and 95% confidence interval of 4.32-43.24 on per-lesion analysis). Conclusion: 68Ga-PSMA PET/CT could effectively detect aggressive PTEN-loss tumors.
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Affiliation(s)
- BaoJun Wang
- Department of Urology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Institute of Urology Nanjing University, Jiangsu Province, China
| | - Jie Gao
- Department of Urology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Institute of Urology Nanjing University, Jiangsu Province, China
| | - Qing Zhang
- Department of Urology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Institute of Urology Nanjing University, Jiangsu Province, China
| | - Yao Fu
- Department of Pathology, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Guangxiang Liu
- Department of Urology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Institute of Urology Nanjing University, Jiangsu Province, China
| | - Jiong Shi
- Department of Pathology, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Danyan Li
- Department of Radiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China; and
| | - Feng Wang
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hongqian Guo
- Department of Urology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Institute of Urology Nanjing University, Jiangsu Province, China
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48
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The effect of androgen deprivation therapy on 68Ga-PSMA tracer uptake in non-metastatic prostate cancer patients. Eur J Nucl Med Mol Imaging 2019; 47:632-641. [PMID: 31732768 DOI: 10.1007/s00259-019-04581-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 10/15/2019] [Indexed: 01/05/2023]
Abstract
PURPOSE To evaluate the effect of neoadjuvant androgen deprivation treatment (ADT) on prostate-specific membrane antigen (PSMA) tracer uptake demonstrated in 68Ga-PSMA-positron emission tomography (PET/CT) in non-metastatic hormone-naïve prostate cancer (PC) patients. MATERIALS AND METHODS The clinical data of 108 PC patients who received neoadjuvant ADT were retrospectively analyzed. All patients had a baseline 68Ga-PSMA-PET/CT scan, and a second scan was delivered median of 2.9 months after the initiation of ADT. The maximum standardized uptake value (SUVmax) of primary tumor (SUVp) and metastatic lymph nodes (SUVln) as well as PSA response were assessed between pre- and post-ADT 68Ga-PSMA-PET/CT scans. RESULTS There were significant decreases in posttreatment serum PSA, SUVp, and SUVln. A decrease in SUVp was seen in 91 patients (84%) with a median value of 66% (range, 5-100%), while 17 patients (16%) had no change in or an increase in PSMA tracer uptake with a median value of 24% (range, 0-198%). Patients with Gleason score (GS) of 7 had significantly higher metabolic response rates compared to other patients. The disease progression was significantly higher only in patients with GS > 7 disease compared to GS 7 disease. The PSA response to ADT was the lowest in patients with ISUP high-grade tumors. A total of 16 patients (15%) had progressive disease, and in 9 patients (8%), radiotherapy decisions were modified according to posttreatment 68Ga-PSMA-PET/CT scans. CONCLUSIONS The current study includes the largest number of patients analyzed to date and demonstrates that ADT causes a significant decrease in serum PSA values and SUVp and SUVln. The authors demonstrate that 68Ga-PSMA-PET/CT may be used as a quantitative imaging modality after neoadjuvant ADT in hormone-naïve non-metastatic PC patients.
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49
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Cakir T, Guven S, Muezzinoglu B, Erol C, Boz MY, Atasever T. Intense fluoro-2-deoxyglucose uptake in high-grade prostatic adenocarcinoma with negligible prostate-specific membrane antigen expression. Urol Ann 2019; 11:439-442. [PMID: 31649469 PMCID: PMC6798301 DOI: 10.4103/ua.ua_11_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
While 68Gallium prostate-specific membrane antigen positron emission tomography/computed tomography (68Ga-PSMA) has demonstrated increasing utility in the evaluation of prostatic carcinoma, it is essential to be aware of false-negative findings. Further subtype analyses of prostate cancer will be helpful in the understanding of the underlying reasons. We herein present a high-grade prostate adenocarcinoma, with metastatic lesions showing high 18F-labeled fluoro-2-deoxyglucose uptake instead of 68Ga-PSMA.
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Affiliation(s)
- Tansel Cakir
- Department of Nuclear Medicine, Istanbul Medipol University, Istanbul, Turkey
| | - Selcuk Guven
- Department of Urology, Istanbul Medipol University, Istanbul, Turkey
| | - Bahar Muezzinoglu
- Department of Pathology, Istanbul Medipol University, Istanbul, Turkey
| | - Cengiz Erol
- Department of Radiology, Istanbul Medipol University, Istanbul, Turkey
| | - Mustafa Yucel Boz
- Department of Urology, Istanbul Medipol University, Istanbul, Turkey
| | - Tamer Atasever
- Department of Nuclear Medicine, Istanbul Medipol University, Istanbul, Turkey
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50
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Tomisaki I, Ikuta H, Higashijima K, Onishi R, Minato A, Fujimoto N. Oncological Outcome After Radical Prostatectomy without Pelvic Lymph Node Dissection for Localized Prostate Cancer: Follow-up Results in a Single Institution. Cancer Invest 2019; 37:524-530. [PMID: 31597501 DOI: 10.1080/07357907.2019.1675076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The oncological benefit of pelvic lymph node dissection (PLND) is still debatable because data on clinical outcomes of radical prostatectomy (RP) without PLND are lacking. In this study, we reported oncological outcome in consecutive 146 patients who underwent RP without PLND. Although 27% of our patients developed biochemical recurrence, the estimated 5-year overall survival rates were 100%, 96.3%, and 95.7% in the low-, intermediate-, and high-risk groups, respectively. These data in our patients were not inferior to those in previous reports that investigated the survivals in patients who received PLND during RP. The therapeutic significance of PLND should be re-evaluated.
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Affiliation(s)
- Ikko Tomisaki
- Department of Urology, University of Occupational and Environmental Health, Kitakyushu City, Japan
| | - Hirofumi Ikuta
- Department of Urology, University of Occupational and Environmental Health, Kitakyushu City, Japan
| | - Katsuyoshi Higashijima
- Department of Urology, University of Occupational and Environmental Health, Kitakyushu City, Japan
| | - Rei Onishi
- Department of Urology, University of Occupational and Environmental Health, Kitakyushu City, Japan
| | - Akinori Minato
- Department of Urology, University of Occupational and Environmental Health, Kitakyushu City, Japan
| | - Naohiro Fujimoto
- Department of Urology, University of Occupational and Environmental Health, Kitakyushu City, Japan
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