Found 256 clinical trials
Balloon Lithoplasty for Preparation of Severely Calcified Coronary Lesions
Severely calcified coronary stenoses are difficult to treat with percutaneous coronary intervention (PCI) using current techniques and there is little specific evidence on how to best treat these cases.
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- 19 Feb, 2024
- 6 locations
Resting Full-cycle Flow Ratio (RFR) Versus Angiography to Guide Revascularization Strategy in Patients Undergoing Coronary Artery By-pass Grafting (CABG)
Resting full-cycle Flow Ratio (RFR) is a measurement performed to evaluate the hemodynamic severity of coronary stenosis. Differently from FFR which is a measurement performed in maximal hyperemia, the RFR is a measurement that is performed in rest and therefore may predict better than FFR the baseline equilibriums that could …
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- 19 Feb, 2024
- 1 location
Complex All-comers and Patients With Diabetes or Prediabetes Treated With Xience Sierra Everolimus-eluting Stents
Drug eluting stents (DES) are widely used for treatment of coronary artery lesions. The Xience Sierra stent has a refined design of the metal stent backbone and is used in patients with various clinical syndromes and in different lesions. Clinical outcome of patients with previously unknown (silent) diabetes and prediabetes …
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- 19 Feb, 2024
- 2 locations
Effect of FFRCT-angio in Functional Diagnosis of Coronary Artery Stenosis
Coronary CT angiography (CTA) or invasive coronary angiography (CAG) is usually performed to evaluate the severity of coronary stenosis depending on the probability of CAD. However, the stenosis severity is not closely corresponding with the hemodynamic significance in coronary arteries.
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- 19 Feb, 2024
- 1 location
The Assessment Of Myocardial Viability Based On CTA/MRI Hybrid Models
The aim of HYBRIDHEART study is to develop new imagistic prototype for a complex evaluation of the myocardial viability by superposing computed tomographic angiographic polar maps of the myocardium with magnetic resonance imaging contractile maps in subjects who suffered an acute myocardial infarction. Moreover, the study will evaluate the association …
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- 19 Feb, 2024
- 1 location
COronary and MICrocirculatory Measurements in Patients With Aortic Valve Stenosis.
Using this technology, we will simultaneously evaluate the hemodynamic significance of coronary stenoses (using FFR and a NHPR - Resting Full cycle Ratio [RFR]) and the microcirculatory function (Index of Microcirculatory Resistance, IMR) in patients with AS and CAD prior to SAVR/TAVI.
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- 19 Feb, 2024
- 1 location