[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"computed-tomography-angiography\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:computed-tomography-angiography":28},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,2,0,[8,56],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":15,"eligibilityCriteria":16,"healthyVolunteers":17,"sex":18,"minAge":19,"maxAge":4,"enrollmentInfo":20,"targetDuration":23,"studyType":24,"phases":4,"briefSummary":25,"conditions":26,"keywords":34,"overallStatus":43,"whyStopped":4,"lastUpdateSubmitDate":44,"lastUpdatePostDateStruct":45,"startDateStruct":48,"completionDateStruct":50,"leadSponsor":52,"locationsCount":55},"100637404","ai-assisted-ct-for-risk-stratification-in-coronary-artery-disease-action-100637404",false,"NCT07577609","AI-assisted CT for Risk Stratification in Coronary Artery Disease (ACTION)","Artificial Intelligence-assisted CT for Risk Stratification in COronary Artery Disease to PreveNt Future Coronary Events and Improve Outcomes","ACTION","Inclusion Criteria:\n\n* Adults aged ≥18 years\n* Undergoing clinically indicated cardiac CT\n* Able and willing to provide informed consent\n\nExclusion Criteria:\n\n* History of malignancy\n* Abnormal renal function (e.g., eGFR or serum creatinine outside reference range)\n* Contraindications to iodinated contrast agents or CT imaging",true,"ALL","18 Years",{"count":21,"type":22},10000,"ESTIMATED","5 Years","OBSERVATIONAL","The goal of this observational study is to learn if AI-assisted cardiac CT imaging can improve cardiovascular risk stratification and prediction of future coronary events in an adult population undergoing clinically indicated cardiac CT.\n\nThe main questions it aims to answer are:\n\n* Can AI-enhanced cardiac CT accurately assess cardiovascular risk in a real-world adult population?\n* How do CT-derived plaque characteristics correlate with clinical, biochemical, and lifestyle risk factors? Researchers will compare subgroups (e.g., patients with different risk profiles, biomarkers, or imaging findings, and a subset undergoing OCT imaging) to see if differences in imaging and clinical parameters are associated with cardiovascular risk and plaque vulnerability.\n\nParticipants will:\n\n* Provide informed consent and medical history\u002Fdemographic information\n* Undergo blood sampling for cardiovascular and metabolic biomarkers\n* Have a resting ECG performed\n* Complete a detailed lifestyle and health questionnaire\n* Receive a non-invasive cardiac CT scan interpreted by an expert\n* Potentially receive heart rate-lowering medication (e.g., metoprolol) if required for imaging quality\n* Be referred for further clinical evaluation if clinically indicated ",[27,28,29,30,31,32,33],"Coronary Artery Disease (CAD)","Computed Tomography Angiography","Biomarkers","AI (Artificial Intelligence)","Lipoprotein(a)","Atheroscleroses, Coronary","Myocardial Ischemia",[35,36,37,38,39,40,41,42],"AI-assisted cardiac CT","Coronary CT angiography (CCTA)","Cardiovascular risk stratification","Coronary plaque characterization","High-risk plaque","Machine learning","CT-FFR (fractional flow reserve)","Coronary calcium scoring","RECRUITING","2026-05-05",{"date":46,"type":47},"2026-05-11","ACTUAL",{"date":49,"type":47},"2022-12-21",{"date":51,"type":22},"2032-12-21",{"name":53,"class":54},"University of Galway","OTHER",1,{"id":57,"slug":58,"hasResults":11,"nctId":59,"briefTitle":60,"officialTitle":61,"acronym":4,"eligibilityCriteria":62,"healthyVolunteers":11,"sex":18,"minAge":19,"maxAge":4,"enrollmentInfo":63,"targetDuration":4,"studyType":24,"phases":4,"briefSummary":65,"conditions":66,"keywords":69,"overallStatus":43,"whyStopped":4,"lastUpdateSubmitDate":72,"lastUpdatePostDateStruct":73,"startDateStruct":75,"completionDateStruct":77,"leadSponsor":79,"locationsCount":55},"100547944","calcification-on-ctca-of-a-cto-and-pci-outcomes-100547944","NCT06414551","Calcification on CTCA of a CTO and PCI Outcomes","Characteristics of Calcification in a Chronic Total Occlusion on Computed Tomography Coronary Angiogram and Percutaneous Coronary Intervention Outcomes- a Single Centre Observational Study","Inclusion Criteria:\n\n* Patients meeting all the below criteria will be included\n\n  * ≥18 years\n  * Previous CTO PCI attempt in the last 5 years\n  * Undergone CTCA either pre or post CTO PCI\n  * Adequate CTCA images for analysis\n\nExclusion Criteria:\n\n* Patients meeting any of the following criteria will be excluded\n\n  * \\\u003C18 years of age\n  * Did not undergo CTCA\n  * Inadequate\u002Fdegraded CTCA images",{"count":64,"type":22},100,"A chronic total occlusion (CTO) is present in 15-20% of patients who are referred for invasive coronary angiography. CTO Percutaneous Coronary Intervention (PCI) procedure success rates have increased over the years and can be as high as 90% when performed by high-volume CTO operators.Procedurally, excess calcification in the CTO anatomy is one factor which makes it difficult to complete the procedure or obtain ideal stent expansion. Excess calcification is best identified by Computed Tomography Coronary Angiography (CTCA) rather than invasive angiography.\n\nThe investigators plan to retrospectively evaluate CTCA in patients who underwent CTO PCI and correlate calcification characteristics with CTO PCI outcomes and tools utilised for calcium modification.",[67,68,28],"Chronic Total Occlusion of Coronary Artery","Calcification",[70,71],"CTCA","CTO","2024-08-28",{"date":74,"type":47},"2024-08-30",{"date":76,"type":47},"2024-07-19",{"date":78,"type":22},"2025-07-01",{"name":80,"class":54},"Sandwell & West Birmingham Hospitals NHS Trust"]