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Introduction: To evaluate the detection rate for prostate cancer (PCa) performing multiparametric magnetic resonance imaging (mpMRI) fusion targeted biopsy (TPBx) combined only with ipsilateral systematic prostate biopsy (SPBx). Materials and methods: From January 2023 to December 2023, 495 men with clinical suspicion of PCa underwent transperineal SPBx plus TPBx in the presence of PI-RADS score lesions ≥ 3. Results: In 250/495 men (50.5%) a PCa was found, while 36/250 (14.4%) men had negative mpMRI. In comparison to TPBx, SPBx diagnosed a higher number of indolent PCa, 38.5 vs. 5.8%, respectively; conversely, SPBx demonstrated a higher detection rate for clinically significant PCa (97.3 vs. 85.4%) in the presence of ISUP Grade Group 2 (GG2). In details, rates were higher in the presence of GG2 (100 vs. 76%), GG3 (85.7 vs. 75.8%) and GG4 (100 vs. 86.4%) tumors. However, in GG5, both SPBx and TPBx diagnosed 100% of csPCa. Furthermore, 89.4% of the cases showed csPCa on the negative mpMRI side. Conclusions: SPBx combined with TPBx maximized csPCa diagnosis; the use of reduced biopsy scheme limited to ipsilateral side of mpMRI lesion plus TPBx missed 11.6% csPCa. Only in the presence of PI-RADS score 5 SPBx and TPBx diagnosed both 100% of csPCa. [ABSTRACT FROM AUTHOR]

Background/Aim: To evaluate the long-term oncological outcomes in men with intermediate risk prostate cancer (PCa) enrolled in active surveillance (AS). Patients and Methods: From April 2015 to December 2022, 30 men with Gleason score 3+4/ISUP Grade Group2 (GG2), greatest percentage of cancer (GPC) ≤50%, Gleason pattern 4 ≤10%, ≤3 positive biopsy cores were enrolled in AS. All patients underwent confirmatory transperineal saturation biopsy (SPBx: 20 cores) 12 months from diagnosis plus multiparametric magnetic resonance (mpMRI) evaluation. At the last follow-up, 68Ga prostate-specific membrane antigen (PSMA) positron-emission tomography (PET)/computed tomography (CT) was added: lesions with PIRADS score ≥3 and/or standardized uptake value (SUVmax) >5 were submitted to four targeted cores. Results: Three out of 30 (10%) men with GG2 PCa were reclassified at confirmatory biopsy. At the last follow-up (median 5.2 years), only 2 of 27 (7.4%) men were reclassified and 23/30 (76.6%) continued AS. Conclusion: Men with favorable GG2 PCa enrolled in AS have good long-term oncological results. The use of selective criteria (i.e., SPBx, mpMRI, PSMA PET/CT) reduces the risk of reclassification. [ABSTRACT FROM AUTHOR]

Introduction: To evaluate the accuracy of 68Ga-prostate specific membrane antigen (PSMA) positron emission tomography/computed tomography (PET/CT) in the diagnosis of clinically significant prostate cancer (csPCa: Grade Group = 2) in men enrolled in Active Surveillance (AS) protocol. Materials and methods: From May 2013 to December 2021 200 men aged between 52 and 74 years (median age 63) with very low risk PCa were enrolled in an AS protocol study. During the follow up 48/200 (24%) men were upgraded and 10/200 (5%) decided to leave the AS protocol. After five years from confirmatory biopsy (range: 48-60 months) 40/142 (28.2%) consecutive patients were submitted to mpMRI and 68Ga-PSMA PET/CT imaging examinations before scheduled repeated biopsy. All the mpMRI (PI-RADS = 3) and 68Ga-PET/TC standardized uptake value (SUVmax) = 5 index lesions underwent targeted cores (mpMRI-TPBx and PSMA-TPBx) combined with transperineal saturation prostate biopsy (SPBx: median 20 cores). Results: Multiparametric MRI and 68Ga-PSMA PET/CT showed 18/40 (45%) and 9/40 (22.5%) lesions suspicious for PCa. In 3/40 (7.5%) men a csPCa (GG2) was found; 68Ga-PSMA-TPBx vs. mpMRI-TPBx vs. SPBx diagnosed 2/3 (66.6%) vs. 2/3 (66.6%) vs. 3/3 (100%) csPCa, respectively. In detail, mpMRI and 68Ga-PSMA PET/TC demonstrated 16/40 (40%) vs. 7/40 (17.5%) false positive and 1 (33.3%) vs. 1 (33.3%) false negative results. Conclusion: Although 68PSMA PET/CT did not improve the detection for csPCa of SPBx (1 false negative result equal to 33.3% of the cases), at the same time, would have spared 31/40 (77.5%) scheduled biopsies showing a better diagnostic accuracy in comparison with mpMRI (83.3% vs. 70.2%). [ABSTRACT FROM AUTHOR]

Introduction: To evaluate the diagnostic accuracy of 68Ga-prostate-specific membrane antigen (PSMA) positron emission tomography/computed tomography (PET/CT) vs. multiparametric magnetic resonance imaging (mpMRI) targeted biopsy (TPBx) in the diagnosis of clinically significant prostate cancer (csPCa: Grade Group = 2). Materials and Methods: From January 2021 to June 2022, 100 patients (median age: 66 years) with negative digital rectal examination underwent transperineal prostate biopsy for abnormal PSA values (median 7.5 ng/ml). Before prostate biopsy, all patients underwent mpMRI and 68Ga-PET/CT examinations and mpMRI (PI-RADS version 2 ≥ 3) or 68Ga-PET/CT index lesions suspicious for cancer (SUVmax > 5 g/ml) underwent cognitive targeted cores (mpMRI-TPBx and PSMA-TPBx: four cores) combined with extended systematic prostate biopsy (eSPBx: median 18 cores). The procedure was performed transperineally using a tru-cut 18-gauge needle under sedation and antibiotic prophylaxis. Results: PCa was found in 58/100 (58.0%) men; in detail, 44/58 (75.9%) were csPCa; mpMRI and 68Ga-PSMA showed 66/100 (66%) and 62/100 (60%) lesions suspicious for PCa, respectively. 68Ga-PSMA-TPBx vs. mpMRI-TPBx vs. eSPBx diagnosed 42 (95.4%) vs. 36 (81.8%) vs. 30 (68.2%) csPCa, respectively; mpMRI-TPBx vs. 68Ga-PSMA-TPBx showed a diagnostic accuracy of 76.9% vs. 84.9% in diagnosing csPCa. Conclusions: 68GaPSMA PET/CT TPBx demonstrated good accuracy in the diagnosis of csPCa, which was not inferior to mpMRI TPBx (84.9% vs. 76.9%) improving the detection rate for cancer of systematic biopsy. [ABSTRACT FROM AUTHOR]

Introduction: The reclassification rate for clinically significant prostate cancer (csPCa) in men enrolled in Active Surveillance (AS) as been prospectively evaluated. Patients and Methods: One hundred patients with very low risk PCa underwent after 8 years a scheduled transperineal prostate biopsy (SPBx = 20 cores) combined with additional mpMRI/TRUS fusion biopsies (4 cores) of lesions PI-RADS scores = 3. All the patients, after initial diagnosis, previously had mpMRI evaluation combined with transperineal saturation prostate biopsy (confirmatory and 3-year scheduled biopsy). Risk reclassification at repeat biopsy triggering the recommendation for active treatment was defined as over 3 or more than 10% of positive cores, Gleason score > 6/ISUP Grade Group = 2, greatest percentage of cancer (GPC) > 50%. Results: Multiparametric MRI was suspicious (PI-RADS = 3) in 30 of 100 cases (30.0%); 70 (70.0%) vs. 20 (20.0%) vs. 10 (10.0%) patients had a PI-RADS score ≤ 2 vs. 3 vs. 4, respectively. Two (2.0%) patients with PI-RADS score 3 and 4 were upgraded (ISUP Grade Group 2); SPBx and MRI/TRUS fusion biopsy diagnosed 100% and 0% of csPCa, respectively. Conclusions: Transperineal SPBx combined with mpMRI at initial confirmatory biopsy allow to select an high number of men at very low risk of reclassification during the AS follow up (2.0% of the cases at 8 years from diagnosis); these data could be useful to reduce the number of scheduled repeated prostate biopsy during the AS follow up. [ABSTRACT FROM AUTHOR]

SPBx combined with mpMRI at confirmatory and repeated evaluation allow to select an high number of men at very low risk of reclassification during the AS follow up (5.4% of the cases at 3 years from diagnosis); these data could be useful to reduce the number of scheduled repeated prostate biopsy during the AS follow up. Introduction: The reclassification rate for clinically significant prostate cancer (csPCa) has been evaluated in men enrolled in active surveillance (AS) protocol who previously underwent confirmatory biopsy. Materials and Methods: From May 2013 to September 2017, 110 patients (median age 63 years) with very low risk PCa underwent 3-years scheduled prostate biopsy performing repeated transperineal saturation biopsy (SPBx); in addition, the mpMRI lesions characterized by Prostate Imaging Reporting and Data System (PI-RADS) version 2 scores = 3 were submitted to additional mpMRI/TRUS fusion biopsies (4 cores). The reclassification rate for csPCa (over 3 or more than 10% of positive cores, ISUP Grade Group/GG = 2, greatest percentage of cancer > 50%) has been evaluated. Results: Six (5.4%) patients with PI-RADS score 3 (4 men) vs. 4 (2 men) were reclassified based on upgraded (GG2); SPBx and MRI/TRUS fusion biopsy diagnosed 100% and 0% of csPCa, respectively. Of the remaining 104 (94.5%) patients, 75 (72.2%) were found to have very low-risk PCa and in 29 (27.8%) cancer was absent (normal parenchyma). Conclusion: SPBx combined with mpMRI at confirmatory and repeated evaluation allow to reduce the reclassification rate during AS follow up (5.4% of the cases at 3 years from diagnosis). [ABSTRACT FROM AUTHOR]

Introduction: The detection rate for clinically significant prostate cancer (csPCa) in men with mpMRI PI-RADS score 3 diagnosed by affiliated radiology centers vs radiological reference center was evaluated. Materials and methods: From January 2017 to December 2020, 950 men (median age 64 years) underwent mpMRI for abnormal PSA values (median 6.3 ng/ml). Among the 950 patients who underwent mpMRI 500 were evaluated by a reference center and 450 by outpatient radiological affiliated centers. All the mpMRI index lesions characterized by a PI-RADS 3 underwent targeted cores combined with extended prostate biopsy. Two radiologists of the radiological reference center revised all the mpMRI lesions 3. Results: Overall, 361/950 (38%) patients had a mpMRI lesion PI-RADS score 3: 120/500 cases (24%) vs 241/450 cases (53.5%) were diagnosed by reference vs affiliated radiological centers. The detection rate for cT1c csPCa was equal to 26.7% (35/120 cases) vs 16.6% (40/241 cases) in men with PI-RADS 3 lesions diagnosed in the reference vs the affiliated radiological centers (p < 0.05). Among the 241 PI-RADS score 3 lesions diagnosed by affiliated radiological centers 86/241 (35.7%) and 36/241 (15%) were downgraded (PI-RADS scores < 3) and upgraded (PI-RADS score 4) by the dedicated radiologists of the reference center. Conclusions: In our series, about 35% and 15% of PI-RADS score 3 lesions diagnosed by affiliated radiological centers were downgraded and upgraded when revised by experencied radiologists, therefore a second opinion is mandatory especially in men enrolled in active surveillance protocols in whom mpMRI is recommended to reduce the number of scheduled repeated prostate biopsies. [ABSTRACT FROM AUTHOR]

Purpose We evaluated the diagnostic accuracy of multiparametric magnetic resonance imaging to diagnose clinically significant prostate cancer and compared it with the diagnostic accuracy of transperineal saturation prostate biopsy. Materials and Methods From January 2011 to February 2018 repeat saturation prostate biopsy (the reference test) was done due to suspicion of cancer in 1,032 men with a median age of 63 years in whom median prostate specific antigen was 8.6 ng/ml. All patients underwent 3.0 Tesla pelvic multiparametric magnetic resonance imaging before saturation prostate biopsy. Additional targeted fusion prostate biopsy was done of lesions with a PI-RADS™ (Prostate Imaging Reporting and Data System) score of 3 or greater. Results T1c prostate cancer was found in 372 of the 1,032 patients (36%). Of these cases 272 (73.1%) were classified as clinically significant prostate cancer. Saturation prostate biopsy vs targeted fusion prostate biopsy and a PI-RADS score of 3 or greater vs targeted fusion prostate biopsy and a PI-RADS score of 4 or greater diagnosed 95.6% vs 83.8% vs 60.3% of clinically significant prostate cancers (p <0.0001). Saturation prostate biopsy missed 12 of 272 clinically significant prostate cancers (4.5%) vs 44 (16.2%) and 108 of 272 (39.7%) missed by targeted fusion prostate biopsy and a PI-RADS score of 3 or greater and a score of 4 or greater, respectively (p <0.0001). As a triage test multiparametric magnetic resonance imaging would have spared 49.3% vs 73.6% of patients using a PI-RADS cutoff of 3 or greater vs 4 or greater. Conclusions Multiparametric magnetic resonance imaging could significantly reduce the number of unnecessary repeat prostate biopsies in about 50% of cases in which a PI-RADS score of 3 or greater is used. At the same time patients should be informed of the 16.2% and 39.7% false-negative rates of clinically significant prostate cancer for targeted fusion prostate biopsy of PI-RADS 3 or greater and 4 or greater lesions, respectively. [ABSTRACT FROM AUTHOR]

Objective: To evaluate the number of needle cores combined with multiparametric magnetic resonance imaging (mpMRI) findings needed to diagnose all clinically significant cases of prostate cancer (csPCa) in men subject to transperineal saturation biopsy (SPBx; 30 cores).Methods: From January 2016 to June 2019, 875 men (median age 63 years) underwent repeat SPBx (median 30 cores) for the suspicion of cancer. All of the patients underwent for the first time 3.0 Tesla pelvic mpMRI before SPBx, and the lesions with Prostate Imaging-Reporting and Data System category ≥3 underwent additional transperineal-targeted fusion prostate biopsies (TPBx).Results: StageT1c PCa was found in 306/875 (34.5%), and 222/306 (72.5%) of them were classified as csPCa. SPBx missed 2/222 (1%) csPCa with International Society of Urologic Pathology Grade Group (GG) 3. TBPx missed 33/222 (14.9%) csPCa (21 vs 12 cases were GG1 vs GG3). The initial 20 needle SPBx cores obtained from the peripheric (16 cores) and anterior gland (4 cores) diagnosed all of the 222 (100%) csPCa only missing 84/129 (65.1%) indolent PCa thus presenting diagnostic accuracy, sensitivity, and specificity equal to 83.1%, 100%, and 65.1%, respectively.Conclusion: In men subject to mpMRI and/or TPBx, a maximum of 20 systematic transperineal needle cores detected all cases of csPCa and minimized the diagnosis of indolent cancers. [ABSTRACT FROM AUTHOR]