MRI-guided Biopsy in Active Surveillance of Prostate Cancer

Author(s):  
Adam Kinnaird ◽  
Nitin K. Yerram ◽  
Luke O’Connor ◽  
Wayne Brisbane ◽  
Vidit Sharma ◽  
...  
Urology ◽  
2019 ◽  
Vol 126 ◽  
pp. 158-164 ◽  
Author(s):  
Steve R. Zhou ◽  
Demetrios N. Simopoulos ◽  
Rajiv Jayadevan ◽  
Ely R. Felker ◽  
Merdie K. Delfin ◽  
...  

2015 ◽  
Vol 33 (7_suppl) ◽  
pp. 43-43
Author(s):  
Thomas P. Frye ◽  
Nabeel Ahmad Shakir ◽  
Steven Abboud ◽  
Arvin Koruthu George ◽  
Maria J Merino ◽  
...  

43 Background: Active surveillance (AS) is an established treatment option for men with low risk prostate cancer. Its role in intermediate prostate cancer is still being investigated. Recent studies have shown that multiparametric-MRI (mp-MRI) along with MRI-TRUS fusion-guided biopsy may better assess risk in patients eligible for AS, compared to 12-core biopsy, due to improved detection of clinically significant cancers. The objective is to determine the performance of MRI-TRUS guided biopsy for men on AS with both low and intermediate risk disease. Methods: Between 2007-2014 men on AS were included if they had complete mp-MRI and pathology data for 2 or more MRI-TRUS biopsy sessions. Fusion guided biopsy procedures consisted of MRI identified targeted biopsies as well as random 12 core biopsies. Men were allowed to participate in AS with low and intermediate risk prostate cancer, Gleason score ≤ 3+4=7. Progression was defined by patients with initial Gleason 3+3=6 to any Gleason 4, and Gleason 3+4=7 disease progressing to a primary Gleason 4 or higher. Results: 89 men met our study criteria with an average age of 62 years old (range 45-79). 75 men had low risk Gleason 3+3=6 at the outset of AS by 1st biopsy session with a median PSA 5.1 ng/ml. The other 14 men had intermediate risk prostate cancer Gleason 3+4=7 at the outset of AS and a median PSA 4.6 ng/ml. During follow-up, 25 (33%) low risk men progressed to 3+4 or above at a median of 20.6 months. Of these, 19 were found by targeted biopsy. 6 (43%) of the intermediate risk men progressed to Gleason 4+3=7 at a median of 36.8 months. 4 of these progressed on targeted fusion biopsy. In the intermediate risk men, 84 random biopsy cores were require to detect 1 progression versus 15 targeted biopsy cores to detect 1 progression. Conclusions: The majority of patients on AS who progressed were identified by MRI-TRUS targeted biopsy. Less biopsy cores are required to detect progression with targeted biopsy. These results are preliminary and a larger cohort with longer follow-up would be beneficial.


2016 ◽  
Vol 34 (2_suppl) ◽  
pp. 115-115
Author(s):  
Thomas P Frye ◽  
Steven F. Abboud ◽  
Richard Ho ◽  
Michele Fascelli ◽  
Raju Chelluri ◽  
...  

115 Background: Active surveillance (AS) is an established option for men with prostate cancer. Studies have shown that multiparametric-MRI along with MRI-TRUS fusion-guided biopsy (FB) may better assess risk in patients eligible for AS, compared to 12-core biopsy, due to improved detection of clinically significant cancers. The objective is to evaluate the performance of expanded criteria eligibility in men on AS being monitored with MRI-TRUS guided biopsy. Methods: Men on AS were included if they had mp-MRI and pathology data for 2 or more FB sessions. FB procedures consisted of targeted biopsies and random 12 core biopsies. Men participated in AS with low and intermediate risk prostate cancer, Gleason score ≤ 3+4=7 with no restriction on percent core involvement or number of cores positive. Progression was defined by patients with initial Gleason 3+3=6 to any Gleason 4, and Gleason 3+4=7 disease progressing to a primary Gleason 4 or higher. Results: 124 men on AS met study criteria. Low risk men had a mean age of 61.3 years versus intermediate risk men with a mean age of 65.5 years (p=0.0062). Mean PSA levels of the low and intermediate risk groups were 5.8 and 5.76 ng/ml (p=0.95), respectively. The mean length of follow-up was 22.56 months (range: 3.6 – 74.4 mo). Rates of pathologic progression in the intermediate and low risk patients were, 38.5% vs. 28.5% (p=0.33). Intermediate risk men had a mean progression-free survival (PFS) of 2.8 years compared to low risk men of 3.9 years (p=0.27). Patients were stratified according to established AS criteria (Epstein, Toronto, PRIAS) and rates of progression are summarized in the Table. 69% of patients met Epstein criteria for AS of which 29.4% (20/68) progressed compared to 28.5% for the low risk cohort overall. Conclusions: Men in our cohort who met strict criteria for AS had the same rate of progression as the entire expaned criteria low risk cohort, 29.4% vs 28.5%, respectively. Our data suggests that with accurate initial Gleason classification other AS criteria such as percent core or number of cores positive have no added benefit in predicting which men may have reclassification or progression of disease. [Table: see text]


2020 ◽  
Vol 14 ◽  
Author(s):  
Silvia Francesca Maria Pizzoli ◽  
Giulia Marton ◽  
Paola Pricolo ◽  
Serena Oliveri ◽  
Paul Summers ◽  
...  

2020 ◽  
Vol 203 ◽  
pp. e966-e967
Author(s):  
Jorge Ballon ◽  
Ryan Chuang* ◽  
Adam Kinnaird ◽  
Rajiv Jayadevan ◽  
Steve Zhou ◽  
...  

2019 ◽  
Vol 213 (4) ◽  
pp. W171-W179
Author(s):  
Matthias Barral ◽  
Arnaud Lefevre ◽  
Philippe Camparo ◽  
Martijn Hoogenboom ◽  
Thibaut Pierre ◽  
...  

2020 ◽  
Vol 45 (12) ◽  
pp. 4150-4159
Author(s):  
Joan C. Vilanova ◽  
Anna Pérez de Tudela ◽  
Josep Puig ◽  
Martijn Hoogenboom ◽  
Joaquim Barceló ◽  
...  

2012 ◽  
Vol 30 (5_suppl) ◽  
pp. 105-105
Author(s):  
Diederik Meindert Somford ◽  
Caroline M. Hoeks ◽  
Roderick C. van den Bergh ◽  
Henk Vergunst ◽  
Inge M van Oort ◽  
...  

105 Background: To prevent overtreatment of insignificant and/or low-risk prostate carcinoma in the PSA screening era, active surveillance is emerging as a treatment strategy for selected patients. In our series we aim to establish whether MRI could aid in correct risk assessment for these patients within the framework of the Prostate Cancer Research International Active Surveillance (PRIAS) study. Methods: We included patients in our protocol based on contemporary criteria for active surveillance: - Diagnosis of prostate cancer by TRUS-guided biopsy. - PSA ≤10 ng/mL, PSA density <0.2 ng/mL/mL - Clinical stage ≤ T2 - Gleason score (GS) ≤3+3=6 - ≤ 2 biopsy cores with cancer All patients underwent multimodality MRI of the prostate, including T2-weighted, diffusion-weighted and dynamic contrast-enhanced MR sequences. When a tumor-suspicious region (TSR) could be identified a targeted MR-guided biopsy (MRGB) was performed to obtain pathology. Patients were referred for definitive treatment in case of GS > 3+3=6 upon MRGB or T3 stage at MRI. Results: In 48 of 49 included patients at least one TSR was identified, with a median of 2 TSRs (range1-4) per patient. MRGB was obtained from every TSR, with a median of 4 MRGBs taken per patient. Five patients had a GS >3+3=6 upon MRGB and were excluded. Three patients were excluded due to suspicion of T3 stage on MRI. Five patient were excluded upon physician’s discretion due to multifocal prostate cancer upon MRGB. Combined multimodality MRI/MRGB in our active surveillance cohort thus excluded 27% (13/49) of patients who were incorrectly stratified as low-risk prostate carcinoma by contemporary criteria. Conclusions: Application of multimodality MRI and MRGB in an active surveillance protocol improves risk stratification, adding onto contemporary PSA and TRUS-guided biopsy criteria for low-risk prostate cancer. This approach might increase safety and reliability of active surveillance for prostate cancer and deserves ongoing prospective evaluation.


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