scholarly journals 311 Can We Predict Extraprostatic Extension (EPE) Prior To Radical Prostatectomy? – A Single Institution Comparison of Pre-Operative Biopsy Histology and Multiparametric MRI (mpMRI) With Radical Prostatectomy Specimen Histology

2021 ◽  
Vol 108 (Supplement_2) ◽  
Author(s):  
A Pavithran ◽  
B G Gowda ◽  
R Pillai ◽  
J Corr ◽  
A Deshpande

Abstract Introduction Prostate biopsies and mpMRI play an integral role in diagnosis of prostate cancer. The aim of our study was to assess the ability to predict EPE based on pre-operative histology and mpMRI. Method We retrospectively analysed 235 patients who underwent radical prostatectomy between January 2015 and April 2017. All patients underwent pre-biopsy mpMRI scans and prostate biopsies. All mpMRIs were reported by dedicated uro-radiologists and all histology was reported by dedicated uro-pathologists. Results 17/25 patients showing EPE on mpMRI had it confirmed on final histology. a53/210 patients showing organ-confirmed disease on mpMRI had EPE on final histology. 40/49 patients who had Gleason 6 adenocarcinoma were organ-confined. 61/186 patients with > Gleason 7 adenocarcinoma had EPE. Sensitivity of mpMRI was 25% with a specificity of 95%. The positive predictive value (PPV) was 68% and negative predictive value (NPV) was 75%. The specificity of pre-biopsy Gleason score > 7 to predict EPE was 81% and sensitivity was 33% with a PPV of 87%. Conclusions Our data suggests that by using > Gleason 7 and mpMRI as a combination, we can reliably predict EPE on final histology which in turn will help counsel patients appropriately for treatment options. Further data collection is ongoing at our institution.

2018 ◽  
Vol 17 (8) ◽  
pp. 335-336
Author(s):  
P. Gontero ◽  
G. Marra ◽  
P. Alessio ◽  
M. Oderda ◽  
A. Palazzetti ◽  
...  

Author(s):  
Yves J. L. Bodar ◽  
Ben G. J. C. Zwezerijnen ◽  
Patrick J. van der Voorn ◽  
Bernard H. E. Jansen ◽  
Ruth S. Smit ◽  
...  

Abstract Purpose Multiparametric magnetic resonance imaging (mpMRI) is a well-established imaging method for localizing primary prostate cancer (PCa) and for guiding targeted prostate biopsies. [18F]DCFPyL positron emission tomography combined with MRI (PSMA-PET/MRI) might be of additional value to localize primary PCa. The aim of this study was to assess the diagnostic performance of [18F]DCFPyL-PET/MRI vs. mpMRI in tumour localization based on histopathology after robot-assisted radical-prostatectomy (RARP), also assessing biopsy advice for potential image-guided prostate biopsies. Methods Thirty prospectively included patients with intermediate to high-risk PCa underwent [18F]DCFPyL-PET/MRI and mpMRI prior to RARP. Two nuclear medicine physicians and two radiologists assessed tumour localization on [18F]DCFPyL-PET/MRI and on mpMRI respectively, and gave a prostate biopsy advice (2 segments) using a 14-segment model of the prostate. The uro-pathologist evaluated the RARP specimen for clinically significant PCa (csPCa) using the same model. csPCa was defined as any PCa with Grade Group (GG) ≥ 2. The biopsy advice based on imaging was correlated with the final histology in the RARP specimen for a total-agreement analysis. An additional near-agreement correlation was performed to approximate clinical reality. Results Overall, 142 of 420 (33.8%) segments contained csPCa after pathologic examination. The segments recommended for targeted biopsy contained the highest GG PCa segment in 27/30 patients (90.0%) both for [18F]DCFPyL-PET/MRI and mpMRI. Areas under the receiver operating characteristics curves (AUC), sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for the total-agreement detection of csPCa per segment using [18F]DCFPyL-PET/MRI were 0.70, 50.0%, 89.9%, 71.7%, and 77.9%, respectively. These results were 0.75, 54.2%, 94.2%, 82.8%, and 80.1%, respectively, for mpMRI only. Conclusion Both [18F]DCFPyL-PET/MRI and mpMRI were only partly able to detect csPCa on a per-segment basis. An accurate detection (90.0%) of the highest GG lesion at patient-level was observed when comparing both [18F]DCFPyL-PET/MRI and mpMRI biopsy advice with the histopathology in the RARP specimen. So, despite the finding that [18F]DCFPyL-PET/MRI adequately detects csPCa, it does not outperform mpMRI.


Author(s):  
UGUR COSAR ◽  
Ilker Sen ◽  
Uguray Aydos ◽  
Murat Yavuz Koparal ◽  
Murat Ucar ◽  
...  

ABSTRACT Objective To evaluate the diagnostic accuracy of the 68Gallium (68Ga) - prostate specific membrane antigen (PSMA) positron emission tomography/magnetic resonance imaging (PET/MRI) and multiparametric MRI (mpMRI) by region-based comparison of index tumour localisations using histopathological tumour maps of patients who underwent radical prostatectomy due to clinically significant prostate cancer. Patients and Methods The study included 64 patients who underwent radical prostatectomy after primary staging with mpMRI and 68Ga-PSMA PET/MRI. Diagnostic analysis was performed by dividing the prostate into four anatomic regions as left/right anterior and left/right posterior. The extension of the lesions in mpMRI and the pathological uptake in 68Ga-PSMA PET/MRI were matched separately for each region with the extension of the index tumour into each region. Results The sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood ratio, negative likelihood ratio, and the accuracy of mpMRI and 68Ga-PSMA PET/MRI are shown as 55.7%, 91.8%, 80.6%, 77.2%, 78.1% and 60.8%, 94.3%, 86.8% 79.8%, 83.5%, respectively. 68Ga-PSMA PET/MRI has higher sensitivity and specificity compared with mpMRI. However, no statistically significant difference was found (p = 0.464). Combined imaging had significantly higher diagnostic accuracy compared with mpMRI and 68Ga-PSMA PET/MRI (change in AUC: 0.084 and 0.046, p < 0.001 and p = 0.028, respectively), while no statistically significant difference was found between mpMRI and 68Ga-PSMA PET/MRI (change in AUC: 0.038, p = 0.246). Conclusion 68Ga-PSMA PET/MRI had higher clinical diagnostic accuracy in prostate cancer compared with mpMRI. Diagnostic accuracy was significantly increased in the combined use of both imaging modalities.


2013 ◽  
Vol 5 (6) ◽  
pp. 156
Author(s):  
Anthony J. Koupparis ◽  
Jeremy P. Grummet ◽  
Antonio Hurtado-Coll ◽  
Robert H. Bell ◽  
Nicholas Buchan ◽  
...  

Objective: The objective of this paper is to report on the pathologicand biochemical progression-free outcomes of patients whounderwent radical prostatectomy for high-risk localized prostatecancer.Methods: Data was collected prospectively from 299 patients whounderwent radical prostatectomy for high-risk clinically localizedprostate cancer by 2 surgeons at a single institution. High risk wasdefined as 1 or more of 3 adverse factors: prostate-specific antigen(PSA) >20, biopsy Gleason score 8 to 10 and clinical stage T3. PSArecurrence was defined as PSA >0.4 ng/mL or any salvage therapy.Results: Median age was 63.3 years (46.1-75.9). Median followupwas 4.7 years (range 0.5-17.3 years). PSA at diagnosis was>20 ng/mL in 31.4%. Biopsy Gleason score was 8 to 10 in 66.9%.Clinical stage was T3 in 24.4%. 81.6% of patients had a singlebaseline risk factor, 15.7% had 2 risk factors and 2.7% had all 3risk factors. Neoadjuvant therapy was administered to 184 patients(61.5%). Pathologic stage was organ-confined in 39.6%, specimenconfinedin 26%, non-specimen-confined in 26.4%, and 8% hadlymph node positive disease. Overall survival, cancer-specificsurvival and biochemical progression-free survival was 99%,99.67% and 70.2%, respectively. Univariate analysis showed thatPSA at diagnosis, percentage of cores positive and number of riskfactors were predictors of PSA recurrence (p < 0.05). Multivariateanalysis showed that PSA at diagnosis was an independent predictorof PSA recurrence (p < 0.05).Conclusion: Radical prostatectomy is associated with favourablebiochemical progression-free, clinical and overall survival inselected men with high-risk localized prostate cancer, and shouldtherefore be considered an option in these patients. Baseline PSA>20 ng/mL is a significant independent predictor of PSA recurrence.Objectif : L’objectif de cet article est de faire rapport sur les résultatsquant à la survie sans progression pathologique et biochimique despatients ayant subi une prostatectomie radicale pour traiter uncancer de la prostate localisé à risque élevé.Méthodologie : Les données ont été recueillies de manièreprospective chez 299 patients ayant subi une prostatectomieradicale réalisée par 2 chirurgiens dans un même établissementpour traiter un cancer de la prostate à risque élevé cliniquementlocalisé. Un risque élevé était défini comme au moins 1 des 3facteurs négatifs suivants : taux d’antigène prostatique spécifique(APS) > 20, score de Gleason de 8 à 10 à la biopsie, stade cliniqueT3. Une récidive avec anomalie de l’APS a été définie comme untaux d’APS > 0,4 ng/mL ou le recours à tout traitement de sauvetage.Résultats : L’âge médian était de 63,3 ans (46,1 à 75,9). Le suivimédian était de 4,7 ans (0,5 à 17,3 ans). Le taux d’APS au momentdu diagnostic était > 20 ng/mL chez 31,4 % des patients. Le scorede Gleason à la biopsie était de 8 à 10 dans 66,9 % des cas. Lestade clinique était de T3 dans 24,4 % des cas; 81,6 % des patientsprésentaient un seul facteur de risque au départ, 15,7 % présentaient2 facteurs de risque et 2,7 % présentaient les 3 facteurs de risque.Un traitement néoadjuvant a été administré à 184 patients(61,5 %). Le stade pathologique était confiné à l’organe dans39,6 % des cas, confiné à l’échantillon dans 26 % des cas, et nonconfiné à l’échantillon dans 26,4 % des cas; 8 % des patientsprésentaient une atteinte des ganglions lymphatiques. La survieglobale, la survie spécifique au cancer et la survie sans progressionbiochimique étaient de 99 %, 99,67 % et 70,2 %, respectivement.L’analyse univariée a montré que le taux d’APS au moment dudiagnostic, le pourcentage de carottes biopsiques positives et lenombre de facteurs de risque étaient des facteurs prédictifs derécidive avec anomalie de l’APS (p < 0,05). L’analyse multivariéea montré que le taux d’APS au moment du diagnostic était unfacteur prédictif indépendant de récidive avec anomalie de l’APS(p < 0,05).Conclusion : La prostatectomie radicale est associée à unesurvie sans progression biochimique, une survie clinique et unesurvie globale favorables chez des patients sélectionnés atteintsd’un cancer de la prostate localisé à risque élevé, et devrait êtreconsidérée comme une option de traitement chez ces patients.Un taux d’APS au départ > 20 ng/mL est un facteur de prédictionindépendant significatif de récidive avec anomalie de l’APS.


2019 ◽  
Author(s):  
Lijin Zhang ◽  
Bin Wu ◽  
Zhenlei Zha ◽  
Wei Qu ◽  
Hu Zhao ◽  
...  

Abstract Background and objectives The previous studies had demonstrate that positive surgical margins (PSMs) was independent predictive factor for biochemical and oncologic outcome in patients with prostate cancer (PCa). This study aimed to conduct a meta-analysis to identify predictive factors for PSMs after radical prostatectomy (RP). Methods We selected eligible studies via electronic database of PubMed, Web of Science and EMBASE from inception to February 2019. The risk factors for PSMs following RP were identificated. The pooled estimates of standardized mean differences (SMDs)/ odds ratios (ORs) and 95% confidence intervals (CIs) were calculated. A fixed-effect or random-effect was used to pool the estimates. Subgroup analyses were performed to explore the reasons for heterogeneity. Results Twenty two studies including 44,144 patients with PCa were eligible for further analysis. The results showed that PSMs were significantly associated with preoperative PSA(pooled SMD=0.44; 95% CI:0.35–0.54; P<0.001), biopsy Gleason Score (< 6/ ≥7) (pooled OR=1.51; 95% CI:1.26–1.81; P<0.001), pathological Gleason Score (< 6/ ≥7) (pooled OR= 2.34; 95% CI:2.02–2.71; P<0.001), pathological stage (<0.001), positive lymph node (pooled OR=3.08; 95% CI:1.94–5.01; P<0.001), extraprostatic extension (pooled OR=4.86; 95% CI:3.11–7.57; P<0.001) and seminal vesicle invasion (pooled OR=3.56; 95% CI:2,26–5.62; P<0.001). However, we found that age (pooled SMD=-0.01; 95% CI: -0.07–0.04; P=0.656), body mass index (pooled SMD=0.06; 95% CI: -0.03–0.15; P=0.173), prostate volume (pooled SMD=-0.28; 95% CI: -0.62–0.05; P=0.097) and nerve sparing (pooled OR=0.94; 95% CI: 0.68–1.29; P=0.705) had no effect on PSMs after RC. Besides, the findings in this study were demonstrated to be reliable by our sensitivity and subgroup analysis. Conclusions preoperative PSA, biopsy Gleason Score, pathological Gleason Score, pathological stage, positive lymph node, extraprostatic extension and seminal vesicle invasion are independent predictors of PSMs after RC. These results may useful to risk stratification and individualized therapy in PCa patients.


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