Dr. Shen is the head and medical director of the IBD Center at Columbia. He is also the Vice Chair for Innovation in Medicine and Surgery and a Professor of Medicine (in Surgery). He is one of the world's pre-eminent leaders in interventional inflammatory bowel disease (IBD) due to his specialized expertise in treating a wide range of pouch-related disorders. In addition to pouchitis and pouch diseases, Dr. Shen specializes in IBD, GI endoscopy (including endoscopic pouch procedures), and imaging technology. Dr. Shen is known as a pioneer in interventional treatment for IBD - this includes postponing or eliminating the need for surgery in some cases.

• Principles, Preparation, Indications, Precaution, and Damage Control of Endoscopic Therapy in Inflammatory Bowel DiseaseDiagnosis and Classification of Inflammatory Bowel Disease StricturesDiagnosis and Classification of Fistula from Inflammatory Bowel Disease and Inflammatory Bowel Disease-Related SurgeryImaging Evaluation of Inflammatory Bowel Disease ComplicationsEndoscopic Balloon Dilation of Strictures: Techniques, Short- and Long-Term Outcomes, and ComplicationsEndoscopic Stricturotomy and StrictureplastyEndoscopic Stenting for Inflammatory Bowel Disease StricturesPorcine Model of Anastomotic Stricture in Crohn's DiseaseEndoscopic Therapy for Fistulas and Abscesses in Crohn's DiseaseEndoscopic Evaluation and Management of Perianal DiseaseOverview of Common Complications in Inflammatory Bowel Disease SurgeryEndoscopy in the Surgically Altered BowelEndoscopic Treatment of Acute and Chronic Anastomotic Leaks from Inflammatory Bowel Disease SurgeryIntraoperative Endoscopic Interventions of Inflammatory Bowel DiseaseEndoscopic Treatment of Postoperative Bleeding, Bezoars, and Foreign BodiesImage-Enhanced Endoscopy in the Surveillance of Colitis-Associated NeoplasiaEndoscopic Management of Colitis-Associated Neoplasia