How Can Olympus Technology Help to Improve Colon Insertion?

For a long time, ScopeGuide has been considered as a training tool for inexperienced endoscopists. In an RCT, trainees achieved a much higher cecal intubation rate and required less help from senior endoscopists compared with trainees who did colonoscopies with on-demand fluoroscopy. 29

Not only do trainees benefit from ScopeGuide: ScopeGuide increases the cecal intubation rate for both inexperienced and experienced gastroenterologists 30,31 and improves cecal intubation times and patient pain scores. 31

We provide a broad selection of adult and slim-diameter colonoscopes across our digital platforms incorporating ScopeGuide functionality and Responsive Insertion Technology, reducing cecal intubation time by approximately 20%.

Why is Colon Insertion Difficult?

Cecal intubation rate is a quality indicator for colonoscopy. The literature suggests that a gastroenterologist should reach the cecum in at least 90% of the exams to ensure high quality clinical service.

Expertise in colonoscopy (e.g. cecal intubation rate > 90%) is usually reached after 200-250 examinations. 27 But aside from expertise, risk factors such as patient age, gender, BMI, previous surgery, or preparation quality may influence the success rate of cecal intubation. 27

Colonic insertion may cause patient pain with the sigmoid colon being the predominant location causing pain during colonoscopy. 28

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Clinical Studies

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  2. 2.The Role of Endoscopy in Barrett‘s Esophagus and Other Premalignant Conditions of the Esophagus. ASGE Standards of Practice Committee, Evans JA et al. Gastrointest Endosc. 2012 Dec;76(6):1087-94. doi: 10.1016/j.gie.2012.08.004.
  3. 3.American Gastroenterological Association Institute Guideline on the Role of Upper Gastrointestinal Biopsy to Evaluate Dyspepsia in the Adult Patient in the Absence of Visible Mucosal Lesions Yang YX, Brill J et al. Gastroenterology. 2015 Oct;149(4):1082-7. doi: 10.1053/j.gastro.2015.07.039. Epub 2015 Aug 14.
  4. 4.The Role of Endoscopy in Inflammatory Bowel Disease American Society for Gastrointestinal Endoscopy Standards of Practice Committee et al. Gastrointest Endosc. 2015 May;81(5):1101-21.e1-13. doi: 10.1016/j. ie.2014.10.030. Epub 2015 Mar 20.
  5. 5.The Seattle Protocol Does Not More Reliably Predict the Detection of Cancer at the Time of Esophagectomy Than a Less Intensive Surveillance Protocol Kariv R, Plesec TP et al. Clin Gastroenterol Hepatol. 2009 Jun;7(6):653-8; quiz 606. doi: 10.1016/j. cgh.2008.11.024. Epub 2008 Dec 13.
  6. 6.Random Biopsies Taken During Colonoscopic Surveillance of Patients with Longstanding Ulcerative Colitis: Low Yield and Absence of Clinical Consequences van den Broek FJ, Stokkers PC et al. Am J Gastroenterol. 2014 May;109(5):715-22. doi: 10.1038/ajg.2011.93. Epub 2011 Mar 22.
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  8. 8.Endoscopic Prediction of Deep Submucosal Invasive Carcinoma: Validation of the Narrow-Band Imaging International Colorectal Endoscopic (NICE) Classification Hayashi N, Tanaka S et al. Gastrointest Endosc. 2013 Oct;78(4):625-32. doi: 10.1016/j.gie.2013.04.185. Epub 2013 Jul 30.
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  16. 16.Impact of Bowel Preparation with Low-Volume (2-Liter) and Intermediate-Volume (3-Liter) Polyethylene Glycol on Colonoscopy Quality: A Prospective Observational Study Cheng CL, Kuo YL et al. Digestion. 2015;92(3):156-64.
  17. 17.Adenoma Detection Rate Is not Influenced by the Timing of Colonoscopy When Performed in Half-Day Blocks Gurudu SR, Ratuapli SK et al. Am J Gastroenterol. 2011 Aug;106(8):1466-71. doi: 10.1038/ajg.2011.125. Epub 2011 Apr 19.
  18. 18.A Patient-Blinded Randomized, Controlled Trial Comparing Air Insufflation, Water Immersion, and Water Exchange During Minimally Sedated Colonoscopy Hsieh YH, Koo M et al. Am J Gastroenterol. 2014 Sep;109(9):1390-400. doi: 10.1038/ajg.2014.126. Epub 2014 Jun 3.
  19. 19.High Definition Colonoscopy vs. Standard Video Endoscopy for the Detection of Colonic Polyps: A Meta-Analysis Subramanian V, Mannath J et al. Endoscopy. 2011 Jun;43(6):499-505. doi: 10.1055/s-0030-1256207. Epub 2011 Feb 28.
  20. 20.Detection of Colorectal Adenoma by Narrow Band Imaging (HQ190) vs. High-Definition White Light Colonoscopy: A Randomized Controlled Trial Leung WK, Lo OS et al. Am J Gastroenterol. 2014 Jun;109(6):855-63. doi: 10.1038/ajg.2014.83. Epub 2014 Apr 22.
  21. 21.Next-Generation Narrow Band Imaging System for Colonic Polyp Detection: A Prospective Multicenter Randomized Trial Horimatsu T, Sano Y et al. Int J Colorectal Dis. 2015 Jul;30(7):947-54. doi: 10.1007/s00384-015-2230-x. Epub 2015 Apr 30.
  22. 22.Narrow Band Imaging to Differentiate Neoplastic and Non-Neoplastic Colorectal Polyps in Real Time: A Meta-Analysis of Diagnostic Operating Characteristics McGill SK, Evangelou E et al. Gut. 2013 Dec;62(12):1704-13. doi: 10.1136/gutjnl-2012-303965. Epub 2013 Jan 7.
  23. 23.Diagnostic Performance of Narrowed Spectrum Endoscopy, Autofluorescence Imaging, and Confocal Laser Endomicroscopy for Optical Diagnosis of Colonic Polyps: A Meta-Analysis Wanders LK, East JE et al. Lancet Oncol. 2013 Dec;14(13):1337-47. doi: 10.1016/S1470-2045(13)70509-6. Epub 2013 Nov 13.
  24. 24.ASGE Technology Committee Systematic Review and Meta-Analysis Assessing the ASGE PIVI Thresholds for Adopting Real-Time Endoscopic Assessment of the Histology of Diminutive Colorectal Polyps ASGE Technology Committee et al. Gastrointest Endosc. 2015 Mar;81(3):502.e1-502.e16. doi:
    10.1016/j.gie.2014.12.022. Epub 2015 Jan 16.
  25. 25.Real-Time Optical Diagnosis for Diminutive Colorectal Polyps Using Narrow-Band Imaging: The VALID Randomised Clinical Trial Kaltenbach T, Rastogi A et al. Gut. 2015 Oct;64(10):1569-77. doi: 10.1136/gutjnl-2014-307742. Epub 2014 Nov 11.
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  32. 32.Does “Responsive Insertion Technology” Improve Practice of Colonoscopy? Results of a Randomized Study Cuesta R, Sola-Vera J et al. Scand J Gastroenterol. 2014 Mar;49(3):355-61. doi:
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  34. 34.Safety Analysis of Endoscopist-Directed [...] Sieg A; bng-Study-Group et al. Sieg A; bng-Study-Group et al.
  35. 35.Position Change During Colonoscope Withdrawal Increases Polyp and Adenoma Detection in the Right but not in the Left Side of the Colon: Results of a Randomized Controlled Trial Ball AJ, Johal SS et al. Gastrointest Endosc. 2015 Sep;82(3):488-94. doi: 10.1016/j.gie.2015.01.035. Epub 2015 Apr 22.
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