Harvard Catalyst Profiles

Contact, publication, and social network information about Harvard faculty and fellows.

Marvin K. Ryou, M.D.

Co-Author

This page shows the publications co-authored by Marvin Ryou and Christopher Thompson.
Connection Strength

16.680
  1. Magnetic cholecysto-duodenal anastomosis. Minim Invasive Ther Allied Technol. 2021 Apr; 30(2):81-85.
    View in: PubMed
    Score: 0.843
  2. ASGE EndoVators Summit: Defining the role and value of endoscopic therapies in obesity management. Metabolism. 2018 05; 82:47-57.
    View in: PubMed
    Score: 0.737
  3. Minimally invasive entero-enteral dual-path bypass using self-assembling magnets. Surg Endosc. 2016 10; 30(10):4533-8.
    View in: PubMed
    Score: 0.652
  4. Endoscopic intestinal bypass creation by using self-assembling magnets in a porcine model. Gastrointest Endosc. 2016 Apr; 83(4):821-5.
    View in: PubMed
    Score: 0.638
  5. An ex vivo bacteriologic study comparing antiseptic techniques for natural orifice translumenal endoscopic surgery (NOTES) via the gastrointestinal tract. Dig Dis Sci. 2012 Aug; 57(8):2130-6.
    View in: PubMed
    Score: 0.497
  6. Magnetic pancreaticobiliary stents and retrieval system: obviating the need for repeat endoscopy (with video). Gastrointest Endosc. 2012 Apr; 75(4):888-892.e1.
    View in: PubMed
    Score: 0.490
  7. An implantable wireless biosensor for the immediate detection of upper GI bleeding: a new fluorescein-based tool for diagnosis and surveillance (with video). Gastrointest Endosc. 2011 Jul; 74(1):189-194.e1.
    View in: PubMed
    Score: 0.472
  8. Current status of endoluminal bariatric procedures for primary and revision indications. Gastrointest Endosc Clin N Am. 2011 Apr; 21(2):315-33.
    View in: PubMed
    Score: 0.464
  9. Smart Self-Assembling MagnetS for ENdoscopy (SAMSEN) for transoral endoscopic creation of immediate gastrojejunostomy (with video). Gastrointest Endosc. 2011 Feb; 73(2):353-9.
    View in: PubMed
    Score: 0.456
  10. Pancreatic antegrade needle-knife (PANK) for treatment of symptomatic pancreatic duct obstruction in Whipple patients (with video). Gastrointest Endosc. 2010 Nov; 72(5):1081-8.
    View in: PubMed
    Score: 0.451
  11. Endoscopic foreign body removal for treatment of chronic abdominal pain in patients after Roux-en-Y gastric bypass. Surg Obes Relat Dis. 2010 Sep-Oct; 6(5):526-31.
    View in: PubMed
    Score: 0.430
  12. Transmural gastric closure and NOTES--how far have we come? Endoscopy. 2009 Jun; 41(6):558-9.
    View in: PubMed
    Score: 0.410
  13. Pilot study evaluating technical feasibility and early outcomes of second-generation endosurgical platform for treatment of weight regain after gastric bypass surgery. Surg Obes Relat Dis. 2009 Jul-Aug; 5(4):450-4.
    View in: PubMed
    Score: 0.405
  14. Magnetic retraction in natural-orifice transluminal endoscopic surgery (NOTES): addressing the problem of traction and countertraction. Endoscopy. 2009 Feb; 41(2):143-8.
    View in: PubMed
    Score: 0.401
  15. Endoscopic therapy for GERD: does it have a future? Curr Gastroenterol Rep. 2008 Jun; 10(3):215-21.
    View in: PubMed
    Score: 0.382
  16. Evaluation of a novel access and closure device for NOTES applications: a transcolonic survival study in the porcine model (with video). Gastrointest Endosc. 2008 May; 67(6):964-9.
    View in: PubMed
    Score: 0.379
  17. Transluminal closure for NOTES: an ex vivo study comparing leak pressures of various gastrotomy and colotomy closure modalities. Endoscopy. 2008 May; 40(5):432-6.
    View in: PubMed
    Score: 0.378
  18. Techniques for transanal access to the peritoneal cavity. Gastrointest Endosc Clin N Am. 2008 Apr; 18(2):245-60; viii.
    View in: PubMed
    Score: 0.377
  19. Dual-port distal pancreatectomy using a prototype endoscope and endoscopic stapler: a natural orifice transluminal endoscopic surgery (NOTES) survival study in a porcine model. Endoscopy. 2007 Oct; 39(10):881-7.
    View in: PubMed
    Score: 0.364
  20. Alternative uses of lumen apposing metal stents. World J Gastroenterol. 2020 Jun 07; 26(21):2715-2728.
    View in: PubMed
    Score: 0.219
  21. Endoscopic Ultrasound-Guided Coil Embolization With Absorbable Gelatin Sponge Appears Superior to Traditional Cyanoacrylate Injection for the Treatment of Gastric Varices. Clin Transl Gastroenterol. 2020 05; 11(5):e00175.
    View in: PubMed
    Score: 0.218
  22. EUS-guided fine-needle biopsy sampling versus FNA in the diagnosis of subepithelial lesions: a large multicenter study. Gastrointest Endosc. 2020 07; 92(1):108-119.e3.
    View in: PubMed
    Score: 0.215
  23. Validation of a Novel Endoscopic Retrograde Cholangiopancreatography Cannulation Simulator. Clin Endosc. 2020 May; 53(3):346-354.
    View in: PubMed
    Score: 0.215
  24. Comparative Study Evaluating Lumen Apposing Metal Stents Versus Double Pigtail Plastic Stents for Treatment of Walled-Off Necrosis. Pancreas. 2020 02; 49(2):236-241.
    View in: PubMed
    Score: 0.214
  25. Endoscopic ultrasound-guided treatment of gastric varices with coil embolization and absorbable hemostatic gelatin sponge: a novel alternative to cyanoacrylate. Endosc Int Open. 2020 Feb; 8(2):E221-E227.
    View in: PubMed
    Score: 0.214
  26. Combination therapy versus monotherapy for EUS-guided management of gastric varices: A systematic review and meta-analysis. Endosc Ultrasound. 2020 Jan-Feb; 9(1):6-15.
    View in: PubMed
    Score: 0.213
  27. Endoscopic Ultrasound Fine-Needle Aspiration versus Fine-Needle Biopsy for Lymph Node Diagnosis: A Large Multicenter Comparative Analysis. Clin Endosc. 2020 Sep; 53(5):600-610.
    View in: PubMed
    Score: 0.212
  28. Endoscopic Ultrasound-Guided Fine Needle Aspiration and Endoscopic Retrograde Cholangiopancreatography-Based Tissue Sampling in Suspected Malignant Biliary Strictures: A Meta-Analysis of Same-Session Procedures. Clin Endosc. 2020 Jul; 53(4):417-428.
    View in: PubMed
    Score: 0.211
  29. EUS-guided biliary drainage is equivalent to ERCP for primary treatment of malignant distal biliary obstruction: a systematic review and meta-analysis. Endosc Int Open. 2019 Nov; 7(11):E1432-E1441.
    View in: PubMed
    Score: 0.210
  30. ABE/ASGE position statement on training and privileges for primary endoscopic bariatric therapies. Gastrointest Endosc. 2020 06; 91(6):1230-1233.
    View in: PubMed
    Score: 0.209
  31. WITHDRAWN: Clinical outcomes of EUS-guided coil embolization versus traditional cyanoacrylate injection for treatment of gastric varices (with video). Gastrointest Endosc. 2019 Aug 23.
    View in: PubMed
    Score: 0.208
  32. Intragastric Balloons: An Emerging Therapy for Nonalcoholic Steatohepatitis and Fibrosis? ACG Case Rep J. 2019 Jul; 6(7):e00142.
    View in: PubMed
    Score: 0.206
  33. Gastric access temporary for endoscopy (GATE): a proposed algorithm for EUS-directed transgastric ERCP in gastric bypass patients. Surg Endosc. 2019 06; 33(6):2024-2033.
    View in: PubMed
    Score: 0.201
  34. Duodenal endoscopic submucosal dissection and sutured defect closure across a lumen-apposing metal stent. VideoGIE. 2019 Apr; 4(4):172-175.
    View in: PubMed
    Score: 0.195
  35. Successful EUS-guided treatment of gastric varices with coil embolization and injection of absorbable gelatin sponge. VideoGIE. 2019 Apr; 4(4):154-156.
    View in: PubMed
    Score: 0.195
  36. Multicenter Implementation of a New Electronic Medical Record System Leads to Longer Procedure Times and Poor Staff Satisfaction. Clin Endosc. 2019 Jan; 52(1):87-89.
    View in: PubMed
    Score: 0.194
  37. Choosing the right through-the-scope clip: a rigorous comparison of rotatability, whip, open/close precision, and closure strength (with videos). Gastrointest Endosc. 2019 01; 89(1):77-86.e1.
    View in: PubMed
    Score: 0.193
  38. ASGE EndoVators Summit: Defining the Role and Value of Endoscopic Therapies in Obesity Management. Obes Surg. 2018 01; 28(1):3-14.
    View in: PubMed
    Score: 0.185
  39. Long-term successful closure of a percutaneous intragastric trocar tract with crossing full-thickness sutures in a porcine model. Endoscopy. 2018 06; 50(6):626-630.
    View in: PubMed
    Score: 0.185
  40. ASGE EndoVators Summit: defining the role and value of endoscopic therapies in obesity management. Surg Endosc. 2018 01; 32(1):1-13.
    View in: PubMed
    Score: 0.184
  41. ASGE EndoVators Summit: Defining the Role and Value of Endoscopic Therapies in Obesity Management. J Gastrointest Surg. 2018 02; 22(2):376-387.
    View in: PubMed
    Score: 0.184
  42. ASGE EndoVators Summit: Defining the role and value of endoscopic therapies in obesity management. Surg Obes Relat Dis. 2017 11; 13(11):1805-1816.
    View in: PubMed
    Score: 0.181
  43. Partial jejunal diversion using an incisionless magnetic anastomosis system: 1-year interim results in patients with obesity and diabetes. Gastrointest Endosc. 2017 Nov; 86(5):904-912.
    View in: PubMed
    Score: 0.179
  44. Endoscopic Ultrasound-Guided Direct Portal Pressure Measurement Using a Digital Pressure Wire with Real-Time Remote Display: A Survival Study. J Laparoendosc Adv Surg Tech A. 2017 Oct; 27(10):1051-1054.
    View in: PubMed
    Score: 0.177
  45. Randomized sham-controlled trial evaluating efficacy and safety of endoscopic gastric plication for primary obesity: The ESSENTIAL trial. Obesity (Silver Spring). 2017 02; 25(2):294-301.
    View in: PubMed
    Score: 0.173
  46. Percutaneous Gastrostomy Device for the Treatment of Class II and Class III Obesity: Results of a Randomized Controlled Trial. Am J Gastroenterol. 2017 03; 112(3):447-457.
    View in: PubMed
    Score: 0.172
  47. Optimizing EUS-guided liver biopsy sampling: comprehensive assessment of needle types and tissue acquisition techniques. Gastrointest Endosc. 2017 Feb; 85(2):419-426.
    View in: PubMed
    Score: 0.168
  48. EUS-guided intrahepatic portosystemic shunt with direct portal pressure measurements: a novel alternative to transjugular intrahepatic portosystemic shunting. Gastrointest Endosc. 2017 Jan; 85(1):243-247.
    View in: PubMed
    Score: 0.168
  49. Intrahepatic portosystemic shunt: an endoscopic approach. Gastrointest Endosc. 2016 Nov; 84(5):855-856.
    View in: PubMed
    Score: 0.167
  50. A standardized method for endoscopic necrosectomy improves complication and mortality rates. Pancreatology. 2016 Jan-Feb; 16(1):66-72.
    View in: PubMed
    Score: 0.161
  51. EUS-guided portal pressure measurement using a digital pressure wire with real-time remote display: a novel, minimally invasive technique for direct measurement in an animal model. Gastrointest Endosc. 2016 Apr; 83(4):817-20.
    View in: PubMed
    Score: 0.161
  52. Prospective evaluation of a simplified narrowband imaging scoring system for a differential diagnosis of colorectal lesions. Surg Endosc. 2016 08; 30(8):3598-603.
    View in: PubMed
    Score: 0.160
  53. Acute and chronic duodenal perforations: endoscopic suturing for primary closure and pyloric exclusion. Gastrointest Endosc. 2016 Mar; 83(3):661-2.
    View in: PubMed
    Score: 0.158
  54. Single-session EUS-guided transgastric ERCP in the gastric bypass patient. Gastrointest Endosc. 2014 Sep; 80(3):517.
    View in: PubMed
    Score: 0.146
  55. Facilitating endoscopic submucosal dissection: the suture-pulley method significantly improves procedure time and minimizes technical difficulty compared with conventional technique: an ex vivo study (with video). Gastrointest Endosc. 2014 Sep; 80(3):495-502.
    View in: PubMed
    Score: 0.143
  56. A novel magnetic countertraction device for endoscopic submucosal dissection significantly reduces procedure time and minimizes technical difficulty. Endoscopy. 2014 May; 46(5):422-5.
    View in: PubMed
    Score: 0.142
  57. Real-time computed tomography-based augmented reality for natural orifice transluminal endoscopic surgery navigation. Br J Surg. 2012 Sep; 99(9):1246-53.
    View in: PubMed
    Score: 0.128
  58. Evaluation of a manually driven, multitasking platform for complex endoluminal and natural orifice transluminal endoscopic surgery applications (with video). Gastrointest Endosc. 2009 Jul; 70(1):121-5.
    View in: PubMed
    Score: 0.102
  59. Transcolonic ventral wall hernia mesh fixation in a porcine model. Endoscopy. 2007 Oct; 39(10):865-9.
    View in: PubMed
    Score: 0.091
  60. Evaluating an optimal gastric closure method for transgastric surgery. Surg Endosc. 2007 Apr; 21(4):677-80.
    View in: PubMed
    Score: 0.086
  61. ASGE EndoVators Summit: Defining the role and value of endoscopic therapies in obesity management. Gastrointest Endosc. 2017 11; 86(5):757-767.
    View in: PubMed
    Score: 0.046
  62. Swallowable fluorometric capsule for wireless triage of gastrointestinal bleeding. Lab Chip. 2015 Dec 07; 15(23):4479-87.
    View in: PubMed
    Score: 0.040
  63. A magnetic retrieval system for stents in the pancreaticobiliary tree. IEEE Trans Biomed Eng. 2010 Aug; 57(8):2018-25.
    View in: PubMed
    Score: 0.027
Connection Strength
The connection strength for co-authors is the sum of the scores for each of their shared publications.

Publication scores are based on many factors, including how long ago they were written and whether the person is a first or senior author.
Funded by the NIH National Center for Advancing Translational Sciences through its Clinical and Translational Science Awards Program, grant number UL1TR002541.