[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"intracranial-venous-sinus-stenosis\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:intracranial-venous-sinus-stenosis":29},{"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":14,"acronym":4,"eligibilityCriteria":15,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":18,"enrollmentInfo":19,"targetDuration":4,"studyType":22,"phases":4,"briefSummary":23,"conditions":24,"keywords":30,"overallStatus":35,"whyStopped":4,"lastUpdateSubmitDate":36,"lastUpdatePostDateStruct":37,"startDateStruct":40,"completionDateStruct":42,"leadSponsor":44,"locationsCount":5},"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":20,"type":21},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).",[25,26,27,28,29],"Intracranial Stenosis","Venous Sinus Stenosis","Stent Implantation","Intracranial Venous Pressures","Intracranial Venous Sinus Stenosis",[31,32,33,34],"Photon-counting CT","Intracranial venous sinus stent","Ultra-high-resolution CT","CT angiography","RECRUITING","2026-08-19",{"date":38,"type":39},"2026-08-20","ACTUAL",{"date":41,"type":39},"2026-01-07",{"date":43,"type":21},"2029-01-07",{"name":45,"class":46},"Xin Lou","OTHER"]