View clinical trials related to Colonoscopy.
Filter by:The purpose of this study is to determine whether the new colonoscope that provides both a traditional and a retrograde view (bending 180 degrees to look behind itself) of the colon can detect more polyps than a standard colonoscope that only provides a forward-facing view. The investigators wish to effectively demonstrate the utility of the new colonoscope (Pentax Retroview Colonoscope) as the objective of this study is to determine polyp and adenoma detection rates in human subjects undergoing colonoscopy for polyp surveillance.
This study aims to investigate whether the personal characteristics of the endoscopist is associated with effect of interventions for colonoscopy quality improvement. This is a prospective, 9-month, multicenter, single-blind study. Baseline quality indicators including adenoma detection rate, polyp detection rate, withdrawal time and adenomas per colonoscopy of each endoscopist were measured in the health promotion centers of academic hospitals for 3 months. Follow-up measurements of quality indicators were repeated every 3 months after each interventions (personal notification of quality indicators, open notification of quality indicators, and colonoscopy quality education by a GI faculty. At the end of the study, personal characteristics of each endoscopist was evaluated using fear of negative evaluation scale, cognitive flexibility inventory, and almost perfect scale.
Our group, prior to the present study, developed a handcrafted predictive model based on the extraction of surface patterns (textons) with a diagnostic accuracy of over 90%24. This method was validated in a small dataset containing only high-quality images. Artificial intelligence is expected to improve the accuracy of colorectal polyp optical diagnosis. We propose a hybrid approach combining a Deep learning (DL) system with polyp features indicated by clinicians (HybridAI). A pilot in vivo experiment will carried out.
A double-blind, randomized, active controlled, multi-center, parallel group study comparing HSK3486 with Propofol, in patients undergoing a colonoscopy.
About 30% of patients were reported to suffer inadequate bowel preparation. So, it is desirable to prescribe personalized regimen according to patient's personal characteristics.
Colonoscopy is the gold-standard for the evaluation of the colorectal mucosa. Colonoscopy quality indicators are the adenoma detection rate, the rate of cecal intubation and the bowel preparation. The role of diet in preparing for colonoscopy is not fully established. Currently there is not enough evidence available to choice between 3 days of low residue diet versus 1 day. The research hypothesis is that the low residue diet offers a non-inferior bowel preparation and an improved tolerance.
The purpose of this study is to investigate the relationship between the change of intestinal bacterial flora and the recovery, and the incidence of symptoms such as abdominal discomfort after colonoscopy. And the investigators will also analyze the effects of probiotics on the degree of change, recovery, and symptom development in intestinal flora.
The goal of this study is to evaluate the interest of second-generation Endocuff Vision (ECV) to improve Adenoma detection rate and / or Polyp detection rate in routine colonoscopy. This is a prospective comparative cohort, on 1034 patients, 517 patients with ECV in prospective group and 517 without ECV in retrospective group
Outpatient colonoscopy adherence is negatively impacted by poor communication and challenges with bowel preparation. We plan to perform a randomized controlled trial at the Pennsylvania Presbyterian Medical Center to (1) provide text message-based educational and reminder messages to patients regarding a scheduled colonoscopy, and (2) evaluate the impact of the texting intervention on colonoscopy show rate and bowel preparation.
Study evaluates the head -to-head efficacy and tolerability of low volume preparations prior to colonoscopy