The Impact of Image-Assisted Colonoscope on Patient Experience, Physician Workload, and Examination Quality
Recruiting · NCT07541924 · Interventional (participants receive a specific treatment)
View the official record on ClinicalTrials.gov →Interventions studied
What this trial is about
Colonoscopy is the cornerstone for colorectal cancer screening, diagnosis, and post-treatment surveillance. Procedural quality is influenced by patient anatomy, particularly variations in colonic configuration such as sigmoid redundancy, looping, and low-lying transverse colon. These features prolong insertion time, increase patient discomfort, and elevate physician workload. Evidence suggests that prior CT imaging can provide objective and individualized information on colonic anatomy-such as redundancy, angulation, and tortuosity-potentially predicting procedural difficulty. However, existing studies are mainly retrospective or descriptive, lacking prospective randomized evidence on clinical utility. This single-blind, randomized controlled trial evaluates whether image-assisted colonoscope insertion, based on pre-existing abdominal/pelvic CT scans, can improve cecal intubation time, enhance patient experience, reduce operator workload, and improve overall examination quality compared with standard colonoscopy.
Who can take part
Inclusion criteria
- Age 18-80 years, or expected natural survival \>3 years
- Undergoing colonoscopy at Peking Union Medical College Hospital
- Presence of an abdominal/pelvic CT scan performed within ≤5 years and no - - - major abdominal surgery afterward
- Patient or legal guardian able to understand the study and provide written consent
Exclusion criteria
- No available CT or CT quality insufficient for anatomical evaluation
- Prior colonic surgery affecting anatomy (e.g., right hemicolectomy, transverse colectomy)
- Severe cardiopulmonary dysfunction or coagulopathy
- Pregnancy
- Refusal to participate or inability to complete questionnaires
- Patient or guardian unable to understand study requirements
Where it is running
1 location listed.
- Peking Union Medical College Hospital - Beijing, Beijing Municipality, China