Buscar
Mostrando ítems 1-10 de 12
Simultaneous assessment of coronary stenosis relevance with automated computed tomography angiography and intravascular ultrasound analyses and fractional flow reserve
(Wolters Kluwer Health, 2022-01)
Objectives: To assess the diagnostic performance of computed tomography angiography (CTA) and intravascular ultrasound (IVUS) derived minimum lumen areas (MLA) from the same lesions that correspond to an FFR ≤0.80. Methods ...
Pericardial fat volume is related to atherosclerotic plaque burden rather than to lesion severity
(Oxford University Press, 2017-07)
Aims: We sought to explore the relationship between pericardial fat volume (PFV) and both coronary atherosclerosis (CA) extent and severity using coronary artery calcium score (CAC), computed tomography coronary angiography ...
Association between three-dimensional vessel geometry and the presence of atherosclerotic plaques in the left anterior descending coronary artery of high-risk patients
(Elsevier, 2017-01)
Geometrical risk factors for coronary atherosclerosis were proposed in the eighties as a complement to fluid dynamic and biomechanical mechanisms for atherosclerotic genesis and progression. Up to date there are no conclusive ...
Relationship between left atrial dimensions and global and regional fat depots
(Instituto Nacional de Cardiología Ignacio Chávez, 2019-04)
Antecedentes y objetivos: La relación entre los depósitos de grasa corporal y las dimensiones de la aurícula izquierda (AI) no ha sido del todo explorada. Nuestro objetivo es determinar si existe relación no solo con los ...
Calculation of the aortic arch angles from three-dimensional reconstructions of computed tomography scans: Comparison between an automated program and visual assessment
(Pergamon-Elsevier Science Ltd, 2019-11)
Background: The curvature of the aortic arch is associated with the risk of endoleak formation after thoracic endovascular aortic repair (TEVAR). However, the adequate assessment of the angles of the aorta continues to ...
Signal density of left ventricular myocardial segments and impact of beam hardening artifact: Implications for myocardial perfusion assessment by multidetector CT coronary angiography
(Springer, 2010-03)
We sought to explore the normal myocardial signal density (SD) levels during multidetector computed tomography coronary angiography (MDCT-CA) acquisitions and evaluated the impact of beam hardening artifacts. Background: ...
Anatomic or functional testing in stable patients with suspected CAD: contemporary role of cardiac CT in the ISCHEMIA trial era
(Springer, 2020-07)
One of the foundations of the management of patients with suspected coronary artery disease (CAD) is to avoid unnecessary invasive coronary angiography (ICA) referrals. However, the diagnostic yield of ICA following abnormal ...
Regional differences of fat depot attenuation using non-contrast, contrast-enhanced, and delayed-enhanced cardiac CT
(SAGE Publications, 2019-04)
Background: Regional fat density assessed by computed tomography (CT) has been suggested as a marker of perivascular adipose tissue inflammation. Dual energy CT (DECT) allows improved tissue characterization compared to ...
Pericardial and visceral, but not total body fat, are related to global coronary and extra-coronary atherosclerotic plaque burden
(Elsevier Ireland, 2018-06-01)
Background: To explore the relationship between coronary and extra-coronary atherosclerotic plaque burden with total and regional fat depots among patients undergoing ECG-gated aortic computed tomography angiography (CTA). ...
Comparison of 1D and 3D Models for the Estimation of Fractional Flow Reserve
(Nature Publishing Group, 2018-11)
In this work we propose to validate the predictive capabilities of one-dimensional (1D) blood flow models with full three-dimensional (3D) models in the context of patient-specific coronary hemodynamics in hyperemic ...