Prostate MRI prior to radical prostatectomy: effects on nerve sparing and pathological margin status

Sasha C Druskin,1 Jen-Jane Liu,2 Allen Young,1 Zhaoyong Feng,1 Seyed S Dianat,3 Wesley W Ludwig,1 Bruce J Trock,1 Katarzyna J Macura,4 Christian P Pavlovich1 1The James Buchanan Brady Urological Institute and Department of Urology, The Johns Hopkins University School of Medicine, Baltimore, MD, 2Dep...

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Main Authors: Druskin SC, Liu JJ, Young A, Feng Z, Dianat SS, Ludwig WW, Trock BJ, Macura KJ, Pavlovich CP
Format: Article
Language:English
Published: Dove Medical Press 2017-04-01
Series:Research and Reports in Urology
Subjects:
Online Access:https://www.dovepress.com/prostate-mri-prior-to-radical-prostatectomy-effects-on-nerve-sparing-a-peer-reviewed-article-RRU
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author Druskin SC
Liu JJ
Young A
Feng Z
Dianat SS
Ludwig WW
Trock BJ
Macura KJ
Pavlovich CP
author_facet Druskin SC
Liu JJ
Young A
Feng Z
Dianat SS
Ludwig WW
Trock BJ
Macura KJ
Pavlovich CP
author_sort Druskin SC
collection DOAJ
description Sasha C Druskin,1 Jen-Jane Liu,2 Allen Young,1 Zhaoyong Feng,1 Seyed S Dianat,3 Wesley W Ludwig,1 Bruce J Trock,1 Katarzyna J Macura,4 Christian P Pavlovich1 1The James Buchanan Brady Urological Institute and Department of Urology, The Johns Hopkins University School of Medicine, Baltimore, MD, 2Department of Urology, Oregon Health and Science University, Portland, OR, 3Department of Radiology, University of Minnesota Twin Cities, Minneapolis, MN, 4Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA Objectives: The aim of this study was to assess the positive surgical margin (PSM) and nerve sparing (NS) rates in patients who underwent prostate MRI (pMRI) prior to radical prostatectomy (RP) and compare them with matched, nonimaged control RP patients. Methods: We identified 204 men who underwent preoperative pelvic MRI (pelMRI), of whom 176 (86.3%) underwent pMRIs, within 60 days of RP, and compared them (1:1) with a nonimaged control group matched by surgeon, age, race, body mass index (BMI), prostate-specific antigen (PSA), pathological Gleason score, prostate specimen weight, and RP year. Results: The rates of nonfocal extracapsular extension (nfECE) on RP pathology in the MRI and control groups were similar. PSM rates were lower in the MRI group (13.7% vs 19.3%; P=0.14), but the difference did not meet statistical significance; this was also the case in patients with nfECE on RP pathology (27.7% vs 39.5%; P=0.3). NS rates were similar between groups. In the MRI group, 54 (26.5%) patients had an MRI suspicious for nfECE; their PSM rate (20.4%) was higher than that of patients with an MRI not suspicious for nfECE (11.3%; P=0.11), but the difference lacked statistical significance; the former group had significantly lower rates of NS. Limitations of the study include sample power and nonuniform heeding of MRI results by each surgeon. Conclusion: MRI did not significantly decrease the rates of PSM, including in the subset of patients with nfECE on final pathology. Even wider resection may be necessary in patients with MRIs suggesting locally-advanced disease. Studies with greater power are needed. Keywords: MRI, positive surgical margins, nerve sparing, extracapsular extension, radical prostatectomy
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spelling doaj.art-44b98e3d2ec847229d0f5acd73c06c3e2022-12-22T03:58:30ZengDove Medical PressResearch and Reports in Urology2253-24472017-04-01Volume 9556332426Prostate MRI prior to radical prostatectomy: effects on nerve sparing and pathological margin statusDruskin SCLiu JJYoung AFeng ZDianat SSLudwig WWTrock BJMacura KJPavlovich CPSasha C Druskin,1 Jen-Jane Liu,2 Allen Young,1 Zhaoyong Feng,1 Seyed S Dianat,3 Wesley W Ludwig,1 Bruce J Trock,1 Katarzyna J Macura,4 Christian P Pavlovich1 1The James Buchanan Brady Urological Institute and Department of Urology, The Johns Hopkins University School of Medicine, Baltimore, MD, 2Department of Urology, Oregon Health and Science University, Portland, OR, 3Department of Radiology, University of Minnesota Twin Cities, Minneapolis, MN, 4Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA Objectives: The aim of this study was to assess the positive surgical margin (PSM) and nerve sparing (NS) rates in patients who underwent prostate MRI (pMRI) prior to radical prostatectomy (RP) and compare them with matched, nonimaged control RP patients. Methods: We identified 204 men who underwent preoperative pelvic MRI (pelMRI), of whom 176 (86.3%) underwent pMRIs, within 60 days of RP, and compared them (1:1) with a nonimaged control group matched by surgeon, age, race, body mass index (BMI), prostate-specific antigen (PSA), pathological Gleason score, prostate specimen weight, and RP year. Results: The rates of nonfocal extracapsular extension (nfECE) on RP pathology in the MRI and control groups were similar. PSM rates were lower in the MRI group (13.7% vs 19.3%; P=0.14), but the difference did not meet statistical significance; this was also the case in patients with nfECE on RP pathology (27.7% vs 39.5%; P=0.3). NS rates were similar between groups. In the MRI group, 54 (26.5%) patients had an MRI suspicious for nfECE; their PSM rate (20.4%) was higher than that of patients with an MRI not suspicious for nfECE (11.3%; P=0.11), but the difference lacked statistical significance; the former group had significantly lower rates of NS. Limitations of the study include sample power and nonuniform heeding of MRI results by each surgeon. Conclusion: MRI did not significantly decrease the rates of PSM, including in the subset of patients with nfECE on final pathology. Even wider resection may be necessary in patients with MRIs suggesting locally-advanced disease. Studies with greater power are needed. Keywords: MRI, positive surgical margins, nerve sparing, extracapsular extension, radical prostatectomyhttps://www.dovepress.com/prostate-mri-prior-to-radical-prostatectomy-effects-on-nerve-sparing-a-peer-reviewed-article-RRUMRIpositive surgical marginsnerve sparingextra-capsular extensionradical prostatectomy
spellingShingle Druskin SC
Liu JJ
Young A
Feng Z
Dianat SS
Ludwig WW
Trock BJ
Macura KJ
Pavlovich CP
Prostate MRI prior to radical prostatectomy: effects on nerve sparing and pathological margin status
Research and Reports in Urology
MRI
positive surgical margins
nerve sparing
extra-capsular extension
radical prostatectomy
title Prostate MRI prior to radical prostatectomy: effects on nerve sparing and pathological margin status
title_full Prostate MRI prior to radical prostatectomy: effects on nerve sparing and pathological margin status
title_fullStr Prostate MRI prior to radical prostatectomy: effects on nerve sparing and pathological margin status
title_full_unstemmed Prostate MRI prior to radical prostatectomy: effects on nerve sparing and pathological margin status
title_short Prostate MRI prior to radical prostatectomy: effects on nerve sparing and pathological margin status
title_sort prostate mri prior to radical prostatectomy effects on nerve sparing and pathological margin status
topic MRI
positive surgical margins
nerve sparing
extra-capsular extension
radical prostatectomy
url https://www.dovepress.com/prostate-mri-prior-to-radical-prostatectomy-effects-on-nerve-sparing-a-peer-reviewed-article-RRU
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