MP84-02 UTILITY OF 2D PHOTOGRAPHY IN THE ASSESSMENT OF PENILE CURVATURE IN MEN WITH PEYRONIE's DISEASE (PD): THE GOSOFT STUDY

Abstract

You have accessJournal of UrologySexual Function/Dysfunction: Evaluation II1 Apr 2017MP84-02 UTILITY OF 2D PHOTOGRAPHY IN THE ASSESSMENT OF PENILE CURVATURE IN MEN WITH PEYRONIE's DISEASE (PD): THE GOSOFT STUDY Jean-Etienne Terrier, Leonardo Florez Valencia, Maciej Orkisz, Christian J Nelson, Lawrence C Jenkins, Phil Vu Bach, Eduardo P Miranda, Bruno Nascimento, and John P Mulhall Jean-Etienne TerrierJean-Etienne Terrier More articles by this author , Leonardo Florez ValenciaLeonardo Florez Valencia More articles by this author , Maciej OrkiszMaciej Orkisz More articles by this author , Christian J NelsonChristian J Nelson More articles by this author , Lawrence C JenkinsLawrence C Jenkins More articles by this author , Phil Vu BachPhil Vu Bach More articles by this author , Eduardo P MirandaEduardo P Miranda More articles by this author , Bruno NascimentoBruno Nascimento More articles by this author , and John P MulhallJohn P Mulhall More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2017.02.2643AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Curvature assessment (CA) in Peyronie's disease (PD) is a critical step in the evaluation of the PD patient. Assessment using combined intracavernosal injection and goniometry (IG) is the standard approach. Aim: to evaluate the utility of novel software (GoSoft) for the measurement of the PD deformity. METHODS Population: men with PD, who had a CA using IG. A rigid erection was an inclusion criterion for inclusion in this analysis. Degree of curvature was measured with a goniometer, simultaneously a photograph was taken. The photo was analyzed using GoSoft software by three observers at different time points, each being blinded to the goniometer assessment. The primary outcome was to compare the inter-observer and intra-observer reliability of GoSoft. We also aimed to compare the concordance between GoSoft and goniometry. We compare correlation for curvature ≤ 45 degrees and for > 45 degrees. We accepted a variability of 5 degrees and considered an under and over-estimation if the difference was >5 degrees. RESULTS 53 subjects were included. The intra-observer reliability was excellent, representing a high correlation ( r=0.96 to 0.98, p<0.001) with a variance between means of 1.3±0.6 degrees. The inter-observer reliability was also high (r=0.89 to 0.95, p<0.001) (Figure 1) with a variance between means of 2.2±1 degrees. The Pearson correlation coefficients (r) between the goniometer and GoSoft for each rater were: Rater 1: r=0.75, p<0.001; Rater 2: r=0.73, p<0.001; and Rater 3: r=0.80, p<0.001. This indicates strong agreement, but also suggests variability between the types of measurement. For the three raters, when comparing GoSoft to the goniometer, GoSoft accurately measured (within ±5 degrees) 45% of the curvatures, underestimated it by >5 degrees in 25% of the curvatures, and overestimated it by >5 degrees in 30% of the curvatures. The correlation appears to be higher for greater curvatures. For curvature ≤ 45 degrees, the correlations between goniometer and GoSoft ranged from: r=0.41-0.47, p=0.03; while, for curvatures > 45 degrees, the correlations ranged from: r=0.59-0.65, p<0.01. CONCLUSIONS GoSoft assessment is consistent with goniometry. The excellent reliability and reproducibility might provide a more standardized instrument for CA in men with PD. © 2017FiguresReferencesRelatedDetails Volume 197Issue 4SApril 2017Page: e1138-e1139 Advertisement Copyright & Permissions© 2017MetricsAuthor Information Jean-Etienne Terrier More articles by this author Leonardo Florez Valencia More articles by this author Maciej Orkisz More articles by this author Christian J Nelson More articles by this author Lawrence C Jenkins More articles by this author Phil Vu Bach More articles by this author Eduardo P Miranda More articles by this author Bruno Nascimento More articles by this author John P Mulhall More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...