Colorectal Surgery
Consultant Colorectal Surgeon, Section of Colorectal Surgery, Department of Surgery, Dr. Jose R. Reyes Memorial Medical Center, Manila, Philippines
Dr. Robert Chang is a consultant colorectal surgeon in the Section of Colorectal Surgery, Department of surgery, Jose R Reyes Memorial Medical Center. He served as the Director of Colorectal Surgery Fellowship program in the same hospital from 2001-2013, and as Chief of Section of Colorectal Surgery from 2005-2013.
Dr. Chang was President of the Philippine Society of Colon and Rectal Surgeons from 2013 to 2014.
His main scientific focus is on rectal cancer surgery. Among his contributions were the introduction of TME, pathologic evaluation of the quality of rectal cancer operations, and lateral pelvic node dissection.
Currently, with a growing interest in inflammatory bowel disease, heconsiders himself a neophyte IBD surgeon.
Selected publications from PubMed
Detection and tracking of a gauze sponge in minimally invasive surgery using a YOLO and R-CNN based model.
Lai SL, Chou YC, Chen CS, Tung TC, Lin BR, Chang RF
Med Biol Eng Comput. 2026 Feb;64(2):701-714 doi: 10.1007/s11517-025-03471-2.
Intraoperative Detection of Surgical Gauze Using Deep Convolutional Neural Network.
Lai SL, Chen CS, Lin BR, Chang RF
Ann Biomed Eng. 2023 Feb;51(2):352-362 doi: 10.1007/s10439-022-03033-9.
Development and validation of a deep learning-based algorithm for colonoscopy quality assessment.
Chang YY, Li PC, Chang RF, Chang YY, Huang SP, Chen YY, Chang WY, Yen HH
Surg Endosc. 2022 Sep;36(9):6446-6455 doi: 10.1007/s00464-021-08993-y.
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