Marvin Ryou MD

Advanced Endoscopic Interventional, Biliary Tract Disease, Gastrointestinal Cancer, Hepatology & Liver Transplantation

Associate Professor of Medicine, Brigham & Women's Hospital

75 Francis StAsbiiBoston, MA 02115
Phone+1 617-732-5500

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Education & Training

Massachusetts General HospitalFellowship, Advanced Endoscopy, 2010 - 2011
Mass General Brigham/Brigham and Women's HospitalFellowship, Gastroenterology, 2007 - 2010
Mass General Brigham/Brigham and Women's HospitalResidency, Internal Medicine, 2003 - 2006
Harvard Medical SchoolClass of 2003

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Certifications & Licensure

MA State Medical License 2005 - 2028
American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

CMS Meaningful Use Stage 1 Certification Partners Longitudinal Medical Record, Partners Healthcare System, 2012, 2014-2017
CMS Meaningful Use Stage 2 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2012, 2014-2017
CMS Meaningful Use Stage 2 Certification EpicCare Inpatient 2014 Certified EHR Suite, Epic Systems Corporation, 2012, 2014-2017

Clinical Trials

Comparison of EUS-Guided Liver Biopsy With Percutaneous Liver Biopsy
WITHDRAWN
NA
MANTIS Endoscopic Clipping Study Start of enrollment: 2023 Mar 28
COMPLETED
Roles: Contact, Principal Investigator

Publications & Presentations

PubMed

International Expert Delphi Consensus on Endoscopic Ultrasound-Guided Portosystemic Pressure Gradient: Best Practices and Future Directions.
Thomas J Wang, Kenneth Chang, Raymond A Rubin, Reena Salgia, Vanessa Shami
Clinical Gastroenterology and Hepatology. 2026-09-01
Endoscopic gastric remodeling and its histologic impact on metabolic dysfunction-associated steatohepatitis: a 12-month prospective study.
Pichamol Jirapinyo, David J Papke, Guadalupe Garcia-Tsao, Marvin Ryou, Lei Zhao
Gastrointestinal Endoscopy. 2026-09-01
Development and validation of 3D-printed anatomically accurate liver model for endoscopic ultrasound-based endo-hepatology training (with video).
Abdulrahman Qatomah, Leander Heisterberg, Ravi Teja Pasam, Wafa Qatomah, Daryl Ramai
Surgical Endoscopy. 2026-08-19

Journal Articles

Choosing the Right Through-the-Scope Clip: A Rigorous Comparison of Rotatability, Whip, open/close Precision, and Closure Strength (With Videos)
Hiroyuki Aihara, Allison R Schulman, Marvin Ryou, Gastrointestinal Endoscopy
Choosing the Right Through-the-Scope Clip: A Rigorous Comparison of Rotatability, Whip, open/close Precision, and Closure Strength (With Videos)
Hiroyuki Aihara, Allison R Schulman, Marvin Ryou, Gastrointestinal Endoscopy

Authored Content

Choosing the Right Through-the-Scope Clip: A Rigorous Comparison of Rotatability, Whip, open/close Precision, and Closure Strength (With Videos)July 2018

Press Mentions

Color-Imaging Endoscopy Improves Detection of Upper GI CancerJanuary 15th, 2021
GI Windows Secures Another $16.4M for Novel Anastomosis SolutionAugust 28th, 2020
Galway Medtech Company EnteraSense Raises €3.5m in InvestmentJanuary 7th, 2019