[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"difficult-colonoscopy\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:difficult-colonoscopy":30},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":13,"acronym":14,"eligibilityCriteria":15,"healthyVolunteers":16,"sex":17,"minAge":18,"maxAge":19,"enrollmentInfo":20,"targetDuration":4,"studyType":23,"phases":24,"briefSummary":26,"conditions":27,"keywords":32,"overallStatus":38,"whyStopped":4,"lastUpdateSubmitDate":39,"lastUpdatePostDateStruct":40,"startDateStruct":43,"completionDateStruct":45,"leadSponsor":47,"locationsCount":5},"100634610","the-impact-of-image-assisted-colonoscope-on-patient-experience-physician-workload-and-examination-quality-100634610",false,"NCT07541924","The Impact of Image-Assisted Colonoscope on Patient Experience, Physician Workload, and Examination Quality","LOOP-p1","Inclusion Criteria:\n\n* Age 18-80 years, or expected natural survival \\>3 years\n* Undergoing colonoscopy at Peking Union Medical College Hospital\n* Presence of an abdominal\u002Fpelvic CT scan performed within ≤5 years and no - - - major abdominal surgery afterward\n* Patient or legal guardian able to understand the study and provide written consent\n\nExclusion Criteria:\n\n* No available CT or CT quality insufficient for anatomical evaluation\n* Prior colonic surgery affecting anatomy (e.g., right hemicolectomy, transverse colectomy)\n* Severe cardiopulmonary dysfunction or coagulopathy\n* Pregnancy\n* Refusal to participate or inability to complete questionnaires\n* Patient or guardian unable to understand study requirements",true,"ALL","18 Years","80 Years",{"count":21,"type":22},200,"ESTIMATED","INTERVENTIONAL",[25],"NA","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.\n\nEvidence 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.\n\nThis single-blind, randomized controlled trial evaluates whether image-assisted colonoscope insertion, based on pre-existing abdominal\u002Fpelvic CT scans, can improve cecal intubation time, enhance patient experience, reduce operator workload, and improve overall examination quality compared with standard colonoscopy.",[28,29,30,31],"Colorectal Cancer Screening","Colonic Polyps\u002FColonoscopy\u002FColorectal Neoplasms","Difficult Colonoscopy","Colonoscopy-Related Discomfort",[33,34,35,36,37],"Colonoscopy","Cecal Intubation Time","Looping","Image-Assisted Colonoscopy","Personalized Colonoscopy","RECRUITING","2026-04-14",{"date":41,"type":42},"2026-04-21","ACTUAL",{"date":44,"type":42},"2025-12-09",{"date":46,"type":22},"2026-05-28",{"name":48,"class":49},"DONG WU","OTHER"]