[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100644201":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":26,"centralContacts":31,"locations":37,"responsibleParty":53,"collaborators":26,"id":57,"slug":58,"hasResults":59,"nctId":60,"briefTitle":61,"officialTitle":62,"acronym":26,"eligibilityCriteria":63,"healthyVolunteers":59,"sex":64,"minAge":65,"maxAge":26,"enrollmentInfo":66,"targetDuration":26,"studyType":69,"phases":70,"briefSummary":72,"conditions":73,"keywords":76,"overallStatus":80,"whyStopped":26,"lastUpdateSubmitDate":81,"lastUpdatePostDateStruct":82,"startDateStruct":85,"completionDateStruct":87,"leadSponsor":89,"locationsCount":90},{"fullName":5,"class":6},"Shandong University","OTHER",[8,15],{"label":9,"type":10,"description":11,"interventionNames":12},"One-Click Autofocus followed by Segmented Focus","EXPERIMENTAL","Participants receive one-click autofocus examination first, followed by segmented focus examination. Both examinations are performed during the same endoscopic session. The order of the two techniques is randomized.",[13,14],"Procedure: One-Click Autofocus","Procedure: Segmented Focus",{"label":16,"type":17,"description":18,"interventionNames":19},"Segmented Focus followed by One-Click Autofocus","ACTIVE_COMPARATOR","Participants receive segmented focus examination first, followed by one-click autofocus examination. Both examinations are performed during the same endoscopic session. The order of the two techniques is randomized.",[13,14],[21,27],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"PROCEDURE","One-Click Autofocus","Magnifying endoscopy examination performed using the one-click autofocus mode. The system automatically adjusts focus to the optimal plane with a single button press.",[9,16],null,{"type":22,"name":28,"description":29,"armGroupLabels":30,"otherNames":26},"Segmented Focus","Magnifying endoscopy examination performed using the segmented focus mode. The endoscopist manually adjusts the focus level stepwise through multiple pre-set focal planes.",[9,16],[32],{"name":33,"role":34,"phone":35,"phoneExt":26,"email":36},"Rui Ji, MD PHD","CONTACT","+86-18560086103","qljirui@email.sdu.edu.cn",[38],{"facility":39,"status":26,"city":40,"state":41,"zip":42,"country":43,"countryCode":44,"cosmosGeoPoint":45,"geoPoint":50,"contacts":51},"Qilu Hospital of Shandong University","Jinan","Shandong","250012","China","CN",{"type":46,"coordinates":47},"Point",[48,49],116.99722,36.66833,{"lat":49,"lon":48},[52],{"name":33,"role":34,"phone":35,"phoneExt":26,"email":36},{"type":54,"investigatorFullName":55,"investigatorTitle":56,"investigatorAffiliation":39,"oldNameTitle":26,"oldOrganization":26},"PRINCIPAL_INVESTIGATOR","Yanqing Li","Chief Physician","100644201","one-click-autofocus-versus-segmented-focus-in-gastric-endoscopy-100644201",false,"NCT07664813","One-Click Autofocus Versus Segmented Focus in Gastric Endoscopy","A Comparative Study of One-Click Autofocus Versus Segmented Focus Techniques Under Magnifying Endoscopy for Gastric Diseases: A Tandem Randomized Controlled Trial","Inclusion Criteria:\n\n* Age ≥ 18 years\n* Patients with gastric diseases (e.g., suspicious lesions, known gastric disorders) requiring further magnifying endoscopy examination\n* Ability to understand and provide written informed consent voluntarily\n\nExclusion Criteria:\n\n* Absolute contraindications to upper gastrointestinal endoscopy (e.g., severe cardiopulmonary insufficiency, coagulopathy)\n* Pregnant or lactating women\n* History of gastric surgery (e.g., gastrectomy) that may affect endoscopic manipulation or anatomy","ALL","18 Years",{"count":67,"type":68},93,"ESTIMATED","INTERVENTIONAL",[71],"NA","Magnifying endoscopy provides high-resolution images that enhance the detection of early gastrointestinal lesions. However, conventional manual zoom techniques require frequent focal adjustments, which can be technically demanding and may compromise image stability, especially in complex anatomical settings.\n\nThis study evaluates a novel one-click autofocus system based on image recognition and computer vision algorithms. The system automatically adjusts focal distance within seconds, eliminating the need for manual operation. This trial aims to compare the efficiency and image quality of one-click autofocus versus segmented manual focus in patients undergoing magnifying endoscopy for gastric diseases.\n\nA tandem randomized controlled trial will be conducted to assess procedure time, image clarity score, and operator satisfaction between the two techniques.",[74,75],"Stomach Neoplasms","Stomach Diseases",[77,78,23,28,79],"Magnifying Endoscopy","Gastroscopy","Image Quality","NOT_YET_RECRUITING","2026-06-23",{"date":83,"type":84},"2026-06-24","ACTUAL",{"date":86,"type":68},"2026-06-18",{"date":88,"type":68},"2026-08-15",{"name":5,"class":6},1]