Artificial Intelligence and Bowel Cleansing Quality
CALPER2
Design and Validation of an Artificial Intelligence System to Detect the Quality of Colon Cleansing Before Colonoscopy
1 other identifier
observational
667
1 country
1
Brief Summary
The main purpose of the study is to design and validate a convolutional neural network (CNN) with the ability to discriminate between pictures of effluents with different qualities of bowel cleansing and in a second time to prospectively assess in a cohort of patients the agreement between the result of the last rectal effluent quality assessed by the CNN and the cleansing quality assessed during the colonoscopy assessed by a validated scale (Boston Bowel Preparation Scale, BBPS). Patients will be prepared with polyethylene glycol (PEG), PEG plus ascorbic acid (PEG-Asc) or sodium picosulfate-oxide magnesium solution (PS).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Oct 2022
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 19, 2022
CompletedFirst Posted
Study publicly available on registry
September 26, 2022
CompletedStudy Start
First participant enrolled
October 1, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 20, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
May 30, 2023
CompletedJanuary 18, 2023
January 1, 2023
7 months
September 19, 2022
January 13, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Effluent characteristics
Effluent characteristics. Set of 4 pictures categorized in adequate preparation (clear liquid, clear liquid with lumps) and inadequate preparation (dark liquid, or dark liquid with solid particles). The concolutional Neural Network will be trained with effluent images and validated.
1 year
Quality of bowel cleansing assessed by the Boston Bowel Preparation Scale
Quality of bowel cleansing assessed by the Boston Bowel Preparation Scale. This scale goes from 0 (no preparation) to 3 points (excellent preparation) in the three segments of the colon (proximal, transverse and distal). The maximum score is 9 points
1 years
Study Arms (1)
Consecutive patients for outpatient colonoscopy
The researchers will offer to participate in the study to patients scheduled for a colonoscopy who meet all the inclusion criteria and none of the exclusion criteria
Interventions
one day liquid diet will be administered to every patient included in the study and: split-dose bowel preparation with 4 Liters of Polyethylene glycol solution, 2 Liters of PEG-Ascorbic acid or 2 Liters Picosulfate.
Colonoscopy will be performed to every patient included in the study
Eligibility Criteria
The researchers will offer to participate in the study to patients scheduled for a colonoscopy who meet all the inclusion criteria and none of the exclusion criteria. The researchers will explain the purpose of the study and will ask to sign the informed consent. They will give verbal and written information.
You may qualify if:
- Age \>18, to sign the informed consent,
- Patients with indication of outpatient colonoscopy
- Patients ingesting the bowel preparation
You may not qualify if:
- Incomplete colonoscopy (except for poor bowel preparation)
- Contraindication for colonoscopy
- Allergies.
- Refusal to participate in the study or impairment to sign the informed consent.
- Colectomy (more than 1 segment)
- Dementia with difficulty in the intake of the preparation
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Department of Gastroenterology
San Cristóbal de La Laguna, S/C de Tenerife, 38320, Spain
Related Publications (5)
Mori Y, Misawa M, Kudo SE. Challenges in artificial intelligence for polyp detection. Dig Endosc. 2022 May;34(4):870-871. doi: 10.1111/den.14279. Epub 2022 Mar 22. No abstract available.
PMID: 35318734RESULTBerzin TM, Parasa S, Wallace MB, Gross SA, Repici A, Sharma P. Position statement on priorities for artificial intelligence in GI endoscopy: a report by the ASGE Task Force. Gastrointest Endosc. 2020 Oct;92(4):951-959. doi: 10.1016/j.gie.2020.06.035. Epub 2020 Jun 19.
PMID: 32565188RESULTFatima H, Johnson CS, Rex DK. Patients' description of rectal effluent and quality of bowel preparation at colonoscopy. Gastrointest Endosc. 2010 Jun;71(7):1244-1252.e2. doi: 10.1016/j.gie.2009.11.053. Epub 2010 Apr 1.
PMID: 20362286RESULTAlzubaidi L, Zhang J, Humaidi AJ, Al-Dujaili A, Duan Y, Al-Shamma O, Santamaria J, Fadhel MA, Al-Amidie M, Farhan L. Review of deep learning: concepts, CNN architectures, challenges, applications, future directions. J Big Data. 2021;8(1):53. doi: 10.1186/s40537-021-00444-8. Epub 2021 Mar 31.
PMID: 33816053RESULTHarewood GC, Wright CA, Baron TH. Assessment of patients' perceptions of bowel preparation quality at colonoscopy. Am J Gastroenterol. 2004 May;99(5):839-43. doi: 10.1111/j.1572-0241.2004.04176.x.
PMID: 15128347RESULT
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 19, 2022
First Posted
September 26, 2022
Study Start
October 1, 2022
Primary Completion
April 20, 2023
Study Completion
May 30, 2023
Last Updated
January 18, 2023
Record last verified: 2023-01