View clinical trials related to Coronary Stenosis.
Filter by:The new software package is intended to assist the physician in imaging the coronaries during percutaneous coronary interventions. This study investigates the amount of contrast used during percutaneous coronary interventions with the aid of the new software package. The results of the study will be compared with control group data (before the new software package was installed or after it was removed) to define a possible contrast reduction.
The primary objective of this study is to compare the performance of SUPRAFLEX to that of XIENCE in an all-comers patient population with symptomatic ischemic heart disease. The patients will be followed through 3 years for major clinical events.
A multicenter, prospective, observational cohort study with clinical, quality of life, and economic evaluation to ascertain the quality-adjusted life years (QALYs) gained by patients with ischemic heart disease revascularized with Absorb in standard clinical practice in Spain. A before-after comparative analysis will be performed, so that each patient will act as his/her own control.
Angina pectoris is the most common clinical manifestation of coronary heart disease（CHD）, which is the main feature of chest pain caused by transient myocardial ischemia. Chronic stable angina pectoris is the degree, frequency, nature and cause of angina pectoris in patients with no significant change in a few weeks. The disease incidence is complex, difficult to diagnosis and treatment, clinical should be combined with various inspection methods for diagnosis and differential diagnosis. Fractional flow reserve of computerized tomographic scanning (FFRCT ) allows computerized tomographic scanning（CT） to scan the determination of coronary blood flow and blood pressure in the heart at rest and hyperemia, but no need to additional check or drugs. This technique has been used for noninvasive fractional flow reserve (FFR) in the calculation, assuming normal artery, calculated by the ratio of the maximum blood flow and blood flow of coronary artery stenosis of an artery. Along with the development and progress of computational fluid dynamics, in the resting state by computed tomographic angiography of coronary artery(CCTA) image data based, simulation of coronary artery maximal hyperemia and according to the 3-dimensional model of the traditional method of reconstruction of coronary arterial tree and ventricular muscle structure, and in order to calculated coronary blood flow and pressure. FFRCT is a novel non-invasive examination method, using computed tomographic angiography of coronary artery image data can be calculated FFR, and preliminary study proved that it has a high degree of correlation with traumatic FFR. Therefore, this study aims to evaluate the correlation between the degree of coronary stenosis and the grading of angina pectoris by noninvasive means --FFRCT, in order to provide a new idea for the diagnosis and differential diagnosis of coronary heart disease.
The purpose of this study is to evaluate the prognosis of coronary stenosis based on intracoronary Imaging.
The investigators propose to develop a computational framework involving a novel automatic image segmentation algorithm based on CTA images, an artery model reconstruction algorithm for stenosis detection, and quantification of severity of stenosis in terms of area stenosis.
The objective of this study is to demonstrate the clinical performance of the Tryton Side Branch Stent used in conjunction with a commercially available Drug Eluting Stent (DES) to treat de novo bifurcated lesions involving both the Left Main (LM) and Circumflex Coronary Artery(LCX).
The objective of this clinical trial is to study the early safety and feasibility of the Shockwave Coronary Lithoplasty System. To demonstrate that the Shockwave device can safely and effectively deliver localized shockwave energy for balloon dilatation of calcified, stenotic, de novo coronary lesions.
BIOSOLVE-III Study is a pre-market, prospective, multi-center trial to assess the acute clinical performance of the DREAMS 2G Drug-Eluting Coronary Scaffold in de novo coronary artery lesions.
The aim is to compare the results of using T-provisional and Mini-Crush stenting techniques in patients with bifurcation lesions in the CTO segment.