[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100651627":3},{"organization":4,"armGroups":7,"interventions":10,"overallOfficials":12,"centralContacts":16,"locations":25,"responsibleParty":43,"collaborators":10,"id":46,"slug":47,"hasResults":48,"nctId":49,"briefTitle":50,"officialTitle":51,"acronym":10,"eligibilityCriteria":52,"healthyVolunteers":48,"sex":53,"minAge":54,"maxAge":55,"enrollmentInfo":56,"targetDuration":10,"studyType":59,"phases":10,"briefSummary":60,"conditions":61,"keywords":67,"overallStatus":27,"whyStopped":10,"lastUpdateSubmitDate":72,"lastUpdatePostDateStruct":73,"startDateStruct":76,"completionDateStruct":78,"leadSponsor":80,"locationsCount":81},{"fullName":5,"class":6},"Chinese PLA General Hospital","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":10},"Patients With Intracranial Venous Sinus Stenosis",null,"Patients with symptomatic intracranial venous sinus stenosis who underwent CT angiography before and after venous sinus stent implantation.",[13],{"name":14,"affiliation":5,"role":15},"Xin Lou","STUDY_CHAIR",[17,22],{"name":18,"role":19,"phone":20,"phoneExt":10,"email":21},"Jinhao Lyu, MD","CONTACT","+8615903562929","330322990@qq.com",{"name":23,"role":19,"phone":10,"phoneExt":10,"email":24},"Jinying He","1527012389@qq.com",[26],{"facility":5,"status":27,"city":28,"state":29,"zip":30,"country":31,"countryCode":32,"cosmosGeoPoint":33,"geoPoint":38,"contacts":39},"RECRUITING","Beijing","Beijing Municipality","100853","China","CN",{"type":34,"coordinates":35},"Point",[36,37],116.39723,39.9075,{"lat":37,"lon":36},[40,41],{"name":18,"role":19,"phone":20,"phoneExt":10,"email":21},{"name":23,"role":19,"phone":42,"phoneExt":10,"email":24},"+8613854153820",{"type":44,"investigatorFullName":14,"investigatorTitle":45,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"SPONSOR_INVESTIGATOR","Chairman","100651627","this-prospective-observational-study-aims-to-evaluate-the-capability-of-ultra-high-resolution-photon-counting-ct-angiography-uhr-pcd-cta-for-noninvasive-evaluation-of-intracranial-venous-sinus-stents-the-study-will-compare-image-quality-stent-visualization-metal-related-artifacts-and-diagnosti-100651627",false,"NCT07762677","This Prospective Observational Study Aims to Evaluate the Capability of Ultra-high-resolution Photon-counting CT Angiography (UHR PCD-CTA) for Noninvasive Evaluation of Intracranial Venous Sinus Stents. The Study Will Compare Image Quality, Stent Visualization, Metal-related Artifacts, and Diagnosti","Evaluation of Ultra-High-Resolution Photon-Counting CT Angiography for Intracranial Venous Sinus Stent Assessment","Inclusion Criteria:\n\n* Adults aged ≥18 years.\n* History of intracranial venous sinus stent implantation.\n* Undergoing follow-up contrast-enhanced CT angiography after stent -placement.\n* Available clinical and imaging data.\n\nExclusion Criteria:\n\n* Severe motion artifacts affecting image interpretation.\n* Contraindication to iodinated contrast media.\n* Severe renal impairment preventing contrast-enhanced CT examination.\n* Incomplete imaging data.\n* Other conditions preventing reliable assessment of the venous sinus stent.","ALL","18 Years","90 Years",{"count":57,"type":58},200,"ESTIMATED","OBSERVATIONAL","This prospective observational study aims to evaluate the effectiveness of ultra-high-resolution photon-counting CT angiography (UHR PCD-CTA) for noninvasive assessment of intracranial venous sinus stents. The study will compare image quality, stent visualization, metal-related artifacts, and diagnostic accuracy between PCD-CTA and conventional energy-integrating detector CT angiography (EID-CTA).",[62,63,64,65,66],"Intracranial Stenosis","Venous Sinus Stenosis","Stent Implantation","Intracranial Venous Pressures","Intracranial Venous Sinus Stenosis",[68,69,70,71],"Photon-counting CT","Intracranial venous sinus stent","Ultra-high-resolution CT","CT angiography","2026-08-19",{"date":74,"type":75},"2026-08-20","ACTUAL",{"date":77,"type":75},"2026-01-07",{"date":79,"type":58},"2029-01-07",{"name":14,"class":6},1]