Reducing the number of systematic biopsy cores in the era of MRI targeted biopsy—implications on clinically-significant prostate cancer detection and relevance to focal therapy planning

Background The optimal number of systematic biopsy cores in the era of multi-parametric MRI targeted biopsy remains unclear, especially on its impact of focal therapy planning. Our objective is to investigate the impact of reducing the number of systematic cores on prostate cancer detection in the e...

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Veröffentlicht in:Prostate cancer and prostatic diseases 2022-04, Vol.25 (4), p.720-726
Hauptverfasser: Lee, Alvin Y. M., Chen, Kenneth, Tan, Yu Guang, Lee, Han Jie, Shutchaidat, Vipatsorn, Fook-Chong, Stephanie, Cheng, Christopher W. S., Ho, Henry S. S., Yuen, John S. P., Ngo, Nye Thane, Law, Yan Mee, Tay, Kae Jack
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container_issue 4
container_start_page 720
container_title Prostate cancer and prostatic diseases
container_volume 25
creator Lee, Alvin Y. M.
Chen, Kenneth
Tan, Yu Guang
Lee, Han Jie
Shutchaidat, Vipatsorn
Fook-Chong, Stephanie
Cheng, Christopher W. S.
Ho, Henry S. S.
Yuen, John S. P.
Ngo, Nye Thane
Law, Yan Mee
Tay, Kae Jack
description Background The optimal number of systematic biopsy cores in the era of multi-parametric MRI targeted biopsy remains unclear, especially on its impact of focal therapy planning. Our objective is to investigate the impact of reducing the number of systematic cores on prostate cancer detection in the era of MRI-US fusion targeted biopsy and as well as its relevance in template planning for focal therapy. Materials and methods A retrospective analysis of 398 consecutive men who underwent both systematic saturation (~24 cores) and MRI-US fusion targeted biopsy was performed. Four reduced-core systematic biopsy strategies (two-thirds, half, one-third and one-quarter systematic cores) were modelled and the detection rates of clinically-significant prostate cancer (csPCa defined as grade group ≥2) were compared to that of a full systematic biopsy using McNemar’s test. Focal therapy treatment plans were made based on positive cores on combined (targeted and systematic) biopsy and the various reduced-cores strategies to compare the proportion who had a change in treatment plan. Results csPCa was detected in 42% (168/398) of this patient cohort. Non-targeted systematic saturation biopsy had a 21% (83/398) csPCa detection rate. Our four strategies reduced the mean number of non-targeted systematic cores from 21.8 to 14.5, 10.9, 7.3 and 5.4 cores and their csPCa detection rates were significantly decreased to 16%, 13%, 9% and 8% respectively (all p  
doi_str_mv 10.1038/s41391-021-00485-3
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M. ; Chen, Kenneth ; Tan, Yu Guang ; Lee, Han Jie ; Shutchaidat, Vipatsorn ; Fook-Chong, Stephanie ; Cheng, Christopher W. S. ; Ho, Henry S. S. ; Yuen, John S. P. ; Ngo, Nye Thane ; Law, Yan Mee ; Tay, Kae Jack</creator><creatorcontrib>Lee, Alvin Y. M. ; Chen, Kenneth ; Tan, Yu Guang ; Lee, Han Jie ; Shutchaidat, Vipatsorn ; Fook-Chong, Stephanie ; Cheng, Christopher W. S. ; Ho, Henry S. S. ; Yuen, John S. P. ; Ngo, Nye Thane ; Law, Yan Mee ; Tay, Kae Jack</creatorcontrib><description>Background The optimal number of systematic biopsy cores in the era of multi-parametric MRI targeted biopsy remains unclear, especially on its impact of focal therapy planning. Our objective is to investigate the impact of reducing the number of systematic cores on prostate cancer detection in the era of MRI-US fusion targeted biopsy and as well as its relevance in template planning for focal therapy. Materials and methods A retrospective analysis of 398 consecutive men who underwent both systematic saturation (~24 cores) and MRI-US fusion targeted biopsy was performed. Four reduced-core systematic biopsy strategies (two-thirds, half, one-third and one-quarter systematic cores) were modelled and the detection rates of clinically-significant prostate cancer (csPCa defined as grade group ≥2) were compared to that of a full systematic biopsy using McNemar’s test. Focal therapy treatment plans were made based on positive cores on combined (targeted and systematic) biopsy and the various reduced-cores strategies to compare the proportion who had a change in treatment plan. Results csPCa was detected in 42% (168/398) of this patient cohort. Non-targeted systematic saturation biopsy had a 21% (83/398) csPCa detection rate. Our four strategies reduced the mean number of non-targeted systematic cores from 21.8 to 14.5, 10.9, 7.3 and 5.4 cores and their csPCa detection rates were significantly decreased to 16%, 13%, 9% and 8% respectively (all p  &lt; 0.05). Compared to the reduced-core strategies, a full systematic saturation biopsy resulted in change to the focal therapy treatment plan in 12% (2/3 cores), 19% (1/2 cores), 24% (1/3 cores) and 29% (1/4 cores) of the time ( p  = 0.0434). Conclusions Reducing the number of systematic biopsies when performing an MRI-targeted biopsy leads to reduced detection of csPCa and alter the treatment plans for focal therapy, possibly limiting its oncological efficacy.</description><identifier>ISSN: 1365-7852</identifier><identifier>EISSN: 1476-5608</identifier><identifier>DOI: 10.1038/s41391-021-00485-3</identifier><identifier>PMID: 35027690</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>59/57 ; 631/67/589/466 ; 692/308/409 ; Biomedical and Life Sciences ; Biomedicine ; Biopsy ; Cancer Research ; Clinical significance ; Cores ; Humans ; Image-Guided Biopsy - methods ; Magnetic Resonance Imaging ; Male ; Planning ; Prostate - pathology ; Prostate cancer ; Prostatic Neoplasms - diagnostic imaging ; Prostatic Neoplasms - therapy ; Reproductive Medicine ; Retrospective Studies ; Saturation ; Therapy</subject><ispartof>Prostate cancer and prostatic diseases, 2022-04, Vol.25 (4), p.720-726</ispartof><rights>The Author(s) 2022. corrected publication 2022</rights><rights>2022. The Author(s).</rights><rights>The Author(s) 2022. corrected publication 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). 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M.</creatorcontrib><creatorcontrib>Chen, Kenneth</creatorcontrib><creatorcontrib>Tan, Yu Guang</creatorcontrib><creatorcontrib>Lee, Han Jie</creatorcontrib><creatorcontrib>Shutchaidat, Vipatsorn</creatorcontrib><creatorcontrib>Fook-Chong, Stephanie</creatorcontrib><creatorcontrib>Cheng, Christopher W. S.</creatorcontrib><creatorcontrib>Ho, Henry S. S.</creatorcontrib><creatorcontrib>Yuen, John S. P.</creatorcontrib><creatorcontrib>Ngo, Nye Thane</creatorcontrib><creatorcontrib>Law, Yan Mee</creatorcontrib><creatorcontrib>Tay, Kae Jack</creatorcontrib><title>Reducing the number of systematic biopsy cores in the era of MRI targeted biopsy—implications on clinically-significant prostate cancer detection and relevance to focal therapy planning</title><title>Prostate cancer and prostatic diseases</title><addtitle>Prostate Cancer Prostatic Dis</addtitle><addtitle>Prostate Cancer Prostatic Dis</addtitle><description>Background The optimal number of systematic biopsy cores in the era of multi-parametric MRI targeted biopsy remains unclear, especially on its impact of focal therapy planning. Our objective is to investigate the impact of reducing the number of systematic cores on prostate cancer detection in the era of MRI-US fusion targeted biopsy and as well as its relevance in template planning for focal therapy. Materials and methods A retrospective analysis of 398 consecutive men who underwent both systematic saturation (~24 cores) and MRI-US fusion targeted biopsy was performed. Four reduced-core systematic biopsy strategies (two-thirds, half, one-third and one-quarter systematic cores) were modelled and the detection rates of clinically-significant prostate cancer (csPCa defined as grade group ≥2) were compared to that of a full systematic biopsy using McNemar’s test. Focal therapy treatment plans were made based on positive cores on combined (targeted and systematic) biopsy and the various reduced-cores strategies to compare the proportion who had a change in treatment plan. Results csPCa was detected in 42% (168/398) of this patient cohort. Non-targeted systematic saturation biopsy had a 21% (83/398) csPCa detection rate. Our four strategies reduced the mean number of non-targeted systematic cores from 21.8 to 14.5, 10.9, 7.3 and 5.4 cores and their csPCa detection rates were significantly decreased to 16%, 13%, 9% and 8% respectively (all p  &lt; 0.05). Compared to the reduced-core strategies, a full systematic saturation biopsy resulted in change to the focal therapy treatment plan in 12% (2/3 cores), 19% (1/2 cores), 24% (1/3 cores) and 29% (1/4 cores) of the time ( p  = 0.0434). Conclusions Reducing the number of systematic biopsies when performing an MRI-targeted biopsy leads to reduced detection of csPCa and alter the treatment plans for focal therapy, possibly limiting its oncological efficacy.</description><subject>59/57</subject><subject>631/67/589/466</subject><subject>692/308/409</subject><subject>Biomedical and Life Sciences</subject><subject>Biomedicine</subject><subject>Biopsy</subject><subject>Cancer Research</subject><subject>Clinical significance</subject><subject>Cores</subject><subject>Humans</subject><subject>Image-Guided Biopsy - methods</subject><subject>Magnetic Resonance Imaging</subject><subject>Male</subject><subject>Planning</subject><subject>Prostate - pathology</subject><subject>Prostate cancer</subject><subject>Prostatic Neoplasms - diagnostic imaging</subject><subject>Prostatic Neoplasms - therapy</subject><subject>Reproductive Medicine</subject><subject>Retrospective Studies</subject><subject>Saturation</subject><subject>Therapy</subject><issn>1365-7852</issn><issn>1476-5608</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNqFks1u1TAQhSMEoqXwAiyQJTZsAhM7jpMNEqr4qVSEVMHa8rWd1FViB9uplB0PwdvwNjwJk95L-VnAIkpG880ZH-cUxeMKnlfA2heprlhXlUDxgbrlJbtTHFe1aEreQHsXv1nDS9FyelQ8SOkKALqqg_vFEeNARdPBcfHtwppFOz-QfGmJX6adjST0JK0p20llp8nOhTmtRIdoE3H-BrRRbdT7izOSVRxstubAff_y1U3z6DTOBp9I8ESPzmM9jmuZ3OBdj4XPZI4hZZUtwUrjVoMqehsiyhsS7WivtwbJgfQBx7fFUc0rmUflPR75YXGvV2Oyjw7vk-LTm9cfT9-V5x_enp2-Oi812sylMYxpJZodR_-m1ZRDryhT3NK66pUB1hu8R8NBmJqa3nBVC9NoS3uogVXspHi5152X3WSNtj5HNco5uknFVQbl5J8d7y7lEK5lJ4BTJlDg2UEghs-LTVlOLmk7og8bliRpQwFEKxqO6NO_0KuwRI_2JP6xuu061v6HqkHwWnCGFN1TGm86RdvfHrkCuSVI7hMkMUHyJkFyG3ryu9nbkZ-RQYDtgYQtP9j4a_c_ZH8ACRfXLg</recordid><startdate>20220401</startdate><enddate>20220401</enddate><creator>Lee, Alvin Y. 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M. ; Chen, Kenneth ; Tan, Yu Guang ; Lee, Han Jie ; Shutchaidat, Vipatsorn ; Fook-Chong, Stephanie ; Cheng, Christopher W. S. ; Ho, Henry S. S. ; Yuen, John S. 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M.</au><au>Chen, Kenneth</au><au>Tan, Yu Guang</au><au>Lee, Han Jie</au><au>Shutchaidat, Vipatsorn</au><au>Fook-Chong, Stephanie</au><au>Cheng, Christopher W. S.</au><au>Ho, Henry S. S.</au><au>Yuen, John S. P.</au><au>Ngo, Nye Thane</au><au>Law, Yan Mee</au><au>Tay, Kae Jack</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reducing the number of systematic biopsy cores in the era of MRI targeted biopsy—implications on clinically-significant prostate cancer detection and relevance to focal therapy planning</atitle><jtitle>Prostate cancer and prostatic diseases</jtitle><stitle>Prostate Cancer Prostatic Dis</stitle><addtitle>Prostate Cancer Prostatic Dis</addtitle><date>2022-04-01</date><risdate>2022</risdate><volume>25</volume><issue>4</issue><spage>720</spage><epage>726</epage><pages>720-726</pages><issn>1365-7852</issn><eissn>1476-5608</eissn><abstract>Background The optimal number of systematic biopsy cores in the era of multi-parametric MRI targeted biopsy remains unclear, especially on its impact of focal therapy planning. Our objective is to investigate the impact of reducing the number of systematic cores on prostate cancer detection in the era of MRI-US fusion targeted biopsy and as well as its relevance in template planning for focal therapy. Materials and methods A retrospective analysis of 398 consecutive men who underwent both systematic saturation (~24 cores) and MRI-US fusion targeted biopsy was performed. Four reduced-core systematic biopsy strategies (two-thirds, half, one-third and one-quarter systematic cores) were modelled and the detection rates of clinically-significant prostate cancer (csPCa defined as grade group ≥2) were compared to that of a full systematic biopsy using McNemar’s test. Focal therapy treatment plans were made based on positive cores on combined (targeted and systematic) biopsy and the various reduced-cores strategies to compare the proportion who had a change in treatment plan. Results csPCa was detected in 42% (168/398) of this patient cohort. Non-targeted systematic saturation biopsy had a 21% (83/398) csPCa detection rate. Our four strategies reduced the mean number of non-targeted systematic cores from 21.8 to 14.5, 10.9, 7.3 and 5.4 cores and their csPCa detection rates were significantly decreased to 16%, 13%, 9% and 8% respectively (all p  &lt; 0.05). Compared to the reduced-core strategies, a full systematic saturation biopsy resulted in change to the focal therapy treatment plan in 12% (2/3 cores), 19% (1/2 cores), 24% (1/3 cores) and 29% (1/4 cores) of the time ( p  = 0.0434). Conclusions Reducing the number of systematic biopsies when performing an MRI-targeted biopsy leads to reduced detection of csPCa and alter the treatment plans for focal therapy, possibly limiting its oncological efficacy.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>35027690</pmid><doi>10.1038/s41391-021-00485-3</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-3585-5431</orcidid><orcidid>https://orcid.org/0000-0003-3252-8881</orcidid><oa>free_for_read</oa></addata></record>
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subjects 59/57
631/67/589/466
692/308/409
Biomedical and Life Sciences
Biomedicine
Biopsy
Cancer Research
Clinical significance
Cores
Humans
Image-Guided Biopsy - methods
Magnetic Resonance Imaging
Male
Planning
Prostate - pathology
Prostate cancer
Prostatic Neoplasms - diagnostic imaging
Prostatic Neoplasms - therapy
Reproductive Medicine
Retrospective Studies
Saturation
Therapy
title Reducing the number of systematic biopsy cores in the era of MRI targeted biopsy—implications on clinically-significant prostate cancer detection and relevance to focal therapy planning
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