MP21-08 THE RENAL TUMOR CONTACT SURFACE AREA USING DEEP CONVOLUTIONAL NEURAL NET IS NEW METHOD FOR PREDICTING THE RENAL FUNCTION AFTER PARTIAL NEPHRECTOMY

Abstract

You have accessJournal of UrologyKidney Cancer: Localized: Surgical Therapy III (MP21)1 Apr 2020MP21-08 THE RENAL TUMOR CONTACT SURFACE AREA USING DEEP CONVOLUTIONAL NEURAL NET IS NEW METHOD FOR PREDICTING THE RENAL FUNCTION AFTER PARTIAL NEPHRECTOMY Bumjin LiM*, Wonchul Lee, Yoon Soo Kyung, Minuk Park, Jaebeom Jun, Janghui Lee, Sangmin Lee, Donghyun Lee, Dalsan You, Cheryn Song, In Gab Jeong, Bumsik Hong, Jun Hyuk Hong, Hanjong Ahn, and Choung-Soo Kim Bumjin LiM*Bumjin LiM* More articles by this author , Wonchul LeeWonchul Lee More articles by this author , Yoon Soo KyungYoon Soo Kyung More articles by this author , Minuk ParkMinuk Park More articles by this author , Jaebeom JunJaebeom Jun More articles by this author , Janghui LeeJanghui Lee More articles by this author , Sangmin LeeSangmin Lee More articles by this author , Donghyun LeeDonghyun Lee More articles by this author , Dalsan YouDalsan You More articles by this author , Cheryn SongCheryn Song More articles by this author , In Gab JeongIn Gab Jeong More articles by this author , Bumsik HongBumsik Hong More articles by this author , Jun Hyuk HongJun Hyuk Hong More articles by this author , Hanjong AhnHanjong Ahn More articles by this author , and Choung-Soo KimChoung-Soo Kim More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000000854.08AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: The renal tumor contact surface area has been recently proposed to predict perioperative outcomes, especially renal function in patients who underwent partial nephrectomy. However, the renal tumor contact surface was measured in an inaccurate way by a complex equation. Therefore, we develop the program to obtain a more accurate rapid renal tumor contact surface. METHODS: Patients underwent DTPA renal scan before and after partial nephrectomy for renal tumors. Pre-operative CT scans are used to distinguish renal mass form normal kidney, and then the contact surface area is calculated using software (Materialise 3-matics) to calculate CSA for each tumor (figure1). Linear regression analysis for between Contact Surface Area and prediction of GFR changes in DTPA renal scan after partial nephrectomy. RESULTS: 96 patients were analyzed. The median tumor size was 2.3cm (range 1.0-4.5). It was found that the proposed method is useful for predicting 30% reduction in renal function of surgical site. Contact Surface Area (0.811) had a significantly larger AUC than Renal Score (0.686, P =0.001) CONCLUSIONS: In patients undergoing partial nephrectomy, tumors with greater contact surface area with surrounding renal parenchyma require a more extensive resection, thus impacting on postoperative renal function. Therefore, this method will be able to predict the post-operative kidney function Source of Funding: none © 2020 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 203Issue Supplement 4April 2020Page: e320-e321 Advertisement Copyright & Permissions© 2020 by American Urological Association Education and Research, Inc.MetricsAuthor Information Bumjin LiM* More articles by this author Wonchul Lee More articles by this author Yoon Soo Kyung More articles by this author Minuk Park More articles by this author Jaebeom Jun More articles by this author Janghui Lee More articles by this author Sangmin Lee More articles by this author Donghyun Lee More articles by this author Dalsan You More articles by this author Cheryn Song More articles by this author In Gab Jeong More articles by this author Bumsik Hong More articles by this author Jun Hyuk Hong More articles by this author Hanjong Ahn More articles by this author Choung-Soo Kim More articles by this author Expand All Advertisement PDF downloadLoading ...