[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"ct-perfusion\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:ct-perfusion":27},{"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":11,"sex":16,"minAge":17,"maxAge":4,"enrollmentInfo":18,"targetDuration":21,"studyType":22,"phases":4,"briefSummary":23,"conditions":24,"keywords":29,"overallStatus":31,"whyStopped":4,"lastUpdateSubmitDate":32,"lastUpdatePostDateStruct":33,"startDateStruct":36,"completionDateStruct":38,"leadSponsor":40,"locationsCount":43},"100634791","spectral-and-ultra-high-resolution-ct-systems-for-non-invasive-detection-of-myocardial-ischemia-stress-ct-perfusion-vs-ffr-ct-100634791",false,"NCT07544277","Spectral and Ultra High Resolution CT Systems for Non-Invasive Detection of Myocardial Ischemia: Stress CT Perfusion VS. FFR-CT","SURE-CT","Inclusion Criteria:\n\n* Patient referred to our hospitals for elective CCTA for ruling out CAD\n* CCTA evidence of moderate stenosis (50-69%) requiring functional assessment according to ESC guidelines\n\nExclusion Criteria:\n\n* hemodynamically unstable conditions,\n* previous revascularization,\n* myocardial infarction,\n* obesity (BMI\\>40 kg\u002Fm2),\n* renal insufficiency (GFR\\\u003C30 mL\u002Fmin),\n* atrial fibrillation or other significant arrhythmias; and\n* other overt cardiovascular diseases affecting CTP performance (e.g., heart failure, severe valvular regurgitation),\n* pregnancy and breastfeeding,\n* contraindications to iodinated contrast agents or regadenoson.","ALL","18 Years",{"count":19,"type":20},142,"ESTIMATED","24 Months","OBSERVATIONAL","Coronary artery disease (CAD) is the leading cause of mortality and morbidity worldwide. Coronary Computed Tomography angiography (CCTA) gained a pivotal clinical role for excellent sensitivity in rule-out CAD, but has limited specificity for a tendency to overestimate stenoses and for the lack of information about their hemodynamic impact. Fractional Flow Reserve derived from CT (FFR-CT) and stress CT perfusion (CTP) have been recently proposed to complement CCTA in the non-invasive assessment of myocardial ischemia, increasing the specificity and avoiding unnecessary catheterization. However, on energy-integrating (EID)-CT, FFR-CT has suboptimal performance, while CTP is affected by high radiation exposure. Both these approaches may benefit by the introduction of the new Photon Counting Detector (PCD)-CT technology, but data completely lacks. Aim of the study is to assess the performance of PCD-CT in the identification of significant CAD combining CCTA with FFR-CT and spectral CTP.",[25,26,27,28],"FFR-CT","CT Angiography","CT Perfusion","Coronary Arterial Disease (CAD)",[25,30,27,28],"Coronary CT angiography","NOT_YET_RECRUITING","2026-04-15",{"date":34,"type":35},"2026-04-22","ACTUAL",{"date":37,"type":20},"2026-09-01",{"date":39,"type":20},"2029-09-01",{"name":41,"class":42},"IRCCS San Raffaele","OTHER",2]