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.

Select Guide Rating

• 1. Introduction and classification of inflammatory bowel diseases2. Setup and principles of endoscopy in inflammatory bowel disease3. Normal gastrointestinal tract and variations on endoscopy4. Crohn’s disease: inflammatory type5. Crohn’s disease: fibrostenotic type6. Crohn’s disease: penetrating type7. Endoscopic evaluation of perianal Crohn’s disease and vaginal fistula8. Crohn’s disease: postsurgical anatomy and disease recurrence9. Ulcerative colitis10. Indeterminate colitis, inflammatory bowel disease unclassified, and variants of Crohn’s disease and ulcerative colitis11. Ulcerative colitis: postsurgical-normal and diseased ileal pouches12. Inflammatory bowel disease–associated neoplasia13. Diseases of diverted and rested bowel14. Endoscopic scores in inflammatory bowel disease15. Histologic evaluation of disease activity in inflammatory bowel disease16. Postoperative complications in Crohn’s disease17. Capsule endoscopy in inflammatory bowel disease18. Enteroscopy in inflammatory bowel disease and inflammatory bowel disease–like conditions19. Chromoendoscopy and image enhanced endoscopy in the assessment of neoplasia and disease activity in inflammatory bowel disease20. Confocal endomicroscopy and other image-enhanced endoscopy in inflammatory bowel disease21. Molecular imaging in inflammatory bowel disease22. Inflammatory bowel disease–like conditions: radiation injury of the gut23. Superimposed infections in inflammatory bowel disease24. Inflammatory bowel disease and inflammatory bowel disease medications–associated intestinal and extraintestinal disorders25. Inflammatory bowel disease–like conditions: infectious26. Inflammatory bowel disease–like conditions: other immune-mediated gastrointestinal disorders27. Inflammatory bowel disease–like conditions after organ transplantation28. Inflammatory bowel disease–like conditions: ischemic bowel diseases and vasculitides29. Inflammatory bowel disease–like conditions: nonsteroidal antiinflammatory drugs, immunotherapy, and other medicationassociated gastrointestinal side effects30. Inflammatory bowel disease–like conditions: immune deficiencies31. Monogenic inflammatory bowel disease32. Inflammatory bowel disease–like conditions: miscellaneous33. Inflammatory bowel disease–like conditions: gastrointestinal lymphoma and other neoplasms34. Histology correlation with common endoscopic abnormalities35. Transmural endoscopic imaging in inflammatory bowel disease36. Inflammatory bowel disease–associated bleeding37. Endoscopic evaluation and management of bezoars and foreign bodies in inflammatory bowel diseases38. Macroscopic examination of surgically resected specimens in inflammatory bowel disease39. Intraoperative endoscopic interventions in inflammatory bowel disease40. Intestinal ultrasound in inflammatory bowel disease41. Artificial intelligence in inflammatory bowel disease42. Introduction of interventional inflammatory bowel disease43. Endoscopic ultrasound in the treatment of small intestinal strictures

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.

Select Guide Rating

• 1. Introduction and classification of inflammatory bowel diseases2. Setup and principles of endoscopy in inflammatory bowel disease3. Normal gastrointestinal tract and variations on endoscopy4. Crohn’s disease: inflammatory type5. Crohn’s disease: fibrostenotic type6. Crohn’s disease: penetrating type7. Endoscopic evaluation of perianal Crohn’s disease and vaginal fistula8. Crohn’s disease: postsurgical anatomy and disease recurrence9. Ulcerative colitis10. Indeterminate colitis, inflammatory bowel disease unclassified, and variants of Crohn’s disease and ulcerative colitis11. Ulcerative colitis: postsurgical-normal and diseased ileal pouches12. Inflammatory bowel disease–associated neoplasia13. Diseases of diverted and rested bowel14. Endoscopic scores in inflammatory bowel disease15. Histologic evaluation of disease activity in inflammatory bowel disease16. Postoperative complications in Crohn’s disease17. Capsule endoscopy in inflammatory bowel disease18. Enteroscopy in inflammatory bowel disease and inflammatory bowel disease–like conditions19. Chromoendoscopy and image enhanced endoscopy in the assessment of neoplasia and disease activity in inflammatory bowel disease20. Confocal endomicroscopy and other image-enhanced endoscopy in inflammatory bowel disease21. Molecular imaging in inflammatory bowel disease22. Inflammatory bowel disease–like conditions: radiation injury of the gut23. Superimposed infections in inflammatory bowel disease24. Inflammatory bowel disease and inflammatory bowel disease medications–associated intestinal and extraintestinal disorders25. Inflammatory bowel disease–like conditions: infectious26. Inflammatory bowel disease–like conditions: other immune-mediated gastrointestinal disorders27. Inflammatory bowel disease–like conditions after organ transplantation28. Inflammatory bowel disease–like conditions: ischemic bowel diseases and vasculitides29. Inflammatory bowel disease–like conditions: nonsteroidal antiinflammatory drugs, immunotherapy, and other medicationassociated gastrointestinal side effects30. Inflammatory bowel disease–like conditions: immune deficiencies31. Monogenic inflammatory bowel disease32. Inflammatory bowel disease–like conditions: miscellaneous33. Inflammatory bowel disease–like conditions: gastrointestinal lymphoma and other neoplasms34. Histology correlation with common endoscopic abnormalities35. Transmural endoscopic imaging in inflammatory bowel disease36. Inflammatory bowel disease–associated bleeding37. Endoscopic evaluation and management of bezoars and foreign bodies in inflammatory bowel diseases38. Macroscopic examination of surgically resected specimens in inflammatory bowel disease39. Intraoperative endoscopic interventions in inflammatory bowel disease40. Intestinal ultrasound in inflammatory bowel disease41. Artificial intelligence in inflammatory bowel disease42. Introduction of interventional inflammatory bowel disease43. Endoscopic ultrasound in the treatment of small intestinal strictures

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.

Select Guide Rating

• 1. Introduction and classification of inflammatory bowel diseases2. Setup and principles of endoscopy in inflammatory bowel disease3. Normal gastrointestinal tract and variations on endoscopy4. Crohn’s disease: inflammatory type5. Crohn’s disease: fibrostenotic type6. Crohn’s disease: penetrating type7. Endoscopic evaluation of perianal Crohn’s disease and vaginal fistula8. Crohn’s disease: postsurgical anatomy and disease recurrence9. Ulcerative colitis10. Indeterminate colitis, inflammatory bowel disease unclassified, and variants of Crohn’s disease and ulcerative colitis11. Ulcerative colitis: postsurgical-normal and diseased ileal pouches12. Inflammatory bowel disease–associated neoplasia13. Diseases of diverted and rested bowel14. Endoscopic scores in inflammatory bowel disease15. Histologic evaluation of disease activity in inflammatory bowel disease16. Postoperative complications in Crohn’s disease17. Capsule endoscopy in inflammatory bowel disease18. Enteroscopy in inflammatory bowel disease and inflammatory bowel disease–like conditions19. Chromoendoscopy and image enhanced endoscopy in the assessment of neoplasia and disease activity in inflammatory bowel disease20. Confocal endomicroscopy and other image-enhanced endoscopy in inflammatory bowel disease21. Molecular imaging in inflammatory bowel disease22. Inflammatory bowel disease–like conditions: radiation injury of the gut23. Superimposed infections in inflammatory bowel disease24. Inflammatory bowel disease and inflammatory bowel disease medications–associated intestinal and extraintestinal disorders25. Inflammatory bowel disease–like conditions: infectious26. Inflammatory bowel disease–like conditions: other immune-mediated gastrointestinal disorders27. Inflammatory bowel disease–like conditions after organ transplantation28. Inflammatory bowel disease–like conditions: ischemic bowel diseases and vasculitides29. Inflammatory bowel disease–like conditions: nonsteroidal antiinflammatory drugs, immunotherapy, and other medicationassociated gastrointestinal side effects30. Inflammatory bowel disease–like conditions: immune deficiencies31. Monogenic inflammatory bowel disease32. Inflammatory bowel disease–like conditions: miscellaneous33. Inflammatory bowel disease–like conditions: gastrointestinal lymphoma and other neoplasms34. Histology correlation with common endoscopic abnormalities35. Transmural endoscopic imaging in inflammatory bowel disease36. Inflammatory bowel disease–associated bleeding37. Endoscopic evaluation and management of bezoars and foreign bodies in inflammatory bowel diseases38. Macroscopic examination of surgically resected specimens in inflammatory bowel disease39. Intraoperative endoscopic interventions in inflammatory bowel disease40. Intestinal ultrasound in inflammatory bowel disease41. Artificial intelligence in inflammatory bowel disease42. Introduction of interventional inflammatory bowel disease43. Endoscopic ultrasound in the treatment of small intestinal strictures