Tabea Borde, Nicole A Varble, Lindsey A Hazen, Laetitia Saccenti, Charisse Garcia, Meredith Digennaro, Sandeep Gurram, Peter A Pinto, Baris Turkbey, Bradford J Wood
{"title":"Impact of Discordance Between Magnetic Resonance Imaging and Ultrasound Volume Measurements on Prostate Fusion Biopsy Outcomes.","authors":"Tabea Borde, Nicole A Varble, Lindsey A Hazen, Laetitia Saccenti, Charisse Garcia, Meredith Digennaro, Sandeep Gurram, Peter A Pinto, Baris Turkbey, Bradford J Wood","doi":"10.1097/JU.0000000000004368","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>Our goal was to determine whether the difference between MRI-based and ultrasound (US)-based volume measurements are associated with MRI/US-targeted fusion-guided biopsy outcomes.</p><p><strong>Materials and methods: </strong>This retrospective, single-center study involved 4177 consecutive patients biopsied between 2010 and 2023 using both MRI/US-targeted fusion and systematic biopsy. Biopsies were indicated because of elevated PSA levels or abnormal multiparametric MRI results. US volume measurements were calculated using the triplane ellipsoid formula, and MRI volumes were obtained by semiautomatic planimetric segmentation. Performance of fusion biopsy compared with systematic biopsy was analyzed with respect to the discordance between MRI and US volume measurements.</p><p><strong>Results: </strong>In 2736 patients (66%), biopsy detected prostate cancer. In cases where both techniques yielded prostate cancers (1695/2736 [62%]), a statistically higher proportion of patients had higher Gleason scores on MRI/US-targeted fusion biopsy compared with systematic biopsy (343 patients [20.2%] vs 137 patients [8.1%], <i>P</i> < .001). MRI volume measurements were significantly smaller compared with US volume measurements (median [IQR] 54 mL [39-77], 56 mL [40-80], respectively, <i>P</i> < .001). Beyond 5 mL volume discordance, MRI/US-targeted fusion biopsy gradually showed less added diagnostic benefit compared with systematic biopsy. In the ≤ 5 mL cohort, MRI/US-targeted fusion biopsy detected more aggressive tumors in 4 times as many patients as systematic biopsy (136 vs 32 patients, <i>P</i> < .001).</p><p><strong>Conclusions: </strong>Although MRI/US-targeted fusion biopsy detected more prostate cancers than systematic biopsy, the performance of MRI/US-targeted fusion biopsy declined with more discordance between volumes measured in MRI vs US. Awareness of volume discordance in MRI- and US-based volume measurements should alert the operator about the possibility of reduced performance of MRI/US-targeted fusion biopsy.</p><p><strong>Clinical trial registration no.: </strong>NCT00102544.</p>","PeriodicalId":17471,"journal":{"name":"Journal of Urology","volume":" ","pages":"428-436"},"PeriodicalIF":5.9000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11888895/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Urology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1097/JU.0000000000004368","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/12/10 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"UROLOGY & NEPHROLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose: Our goal was to determine whether the difference between MRI-based and ultrasound (US)-based volume measurements are associated with MRI/US-targeted fusion-guided biopsy outcomes.
Materials and methods: This retrospective, single-center study involved 4177 consecutive patients biopsied between 2010 and 2023 using both MRI/US-targeted fusion and systematic biopsy. Biopsies were indicated because of elevated PSA levels or abnormal multiparametric MRI results. US volume measurements were calculated using the triplane ellipsoid formula, and MRI volumes were obtained by semiautomatic planimetric segmentation. Performance of fusion biopsy compared with systematic biopsy was analyzed with respect to the discordance between MRI and US volume measurements.
Results: In 2736 patients (66%), biopsy detected prostate cancer. In cases where both techniques yielded prostate cancers (1695/2736 [62%]), a statistically higher proportion of patients had higher Gleason scores on MRI/US-targeted fusion biopsy compared with systematic biopsy (343 patients [20.2%] vs 137 patients [8.1%], P < .001). MRI volume measurements were significantly smaller compared with US volume measurements (median [IQR] 54 mL [39-77], 56 mL [40-80], respectively, P < .001). Beyond 5 mL volume discordance, MRI/US-targeted fusion biopsy gradually showed less added diagnostic benefit compared with systematic biopsy. In the ≤ 5 mL cohort, MRI/US-targeted fusion biopsy detected more aggressive tumors in 4 times as many patients as systematic biopsy (136 vs 32 patients, P < .001).
Conclusions: Although MRI/US-targeted fusion biopsy detected more prostate cancers than systematic biopsy, the performance of MRI/US-targeted fusion biopsy declined with more discordance between volumes measured in MRI vs US. Awareness of volume discordance in MRI- and US-based volume measurements should alert the operator about the possibility of reduced performance of MRI/US-targeted fusion biopsy.
期刊介绍:
The Official Journal of the American Urological Association (AUA), and the most widely read and highly cited journal in the field, The Journal of Urology® brings solid coverage of the clinically relevant content needed to stay at the forefront of the dynamic field of urology. This premier journal presents investigative studies on critical areas of research and practice, survey articles providing short condensations of the best and most important urology literature worldwide, and practice-oriented reports on significant clinical observations.