Pedro Marcos-Alberca

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Assessment of intramyocardial perfusion by contrast echocardiography is a promising new technique that allows to obtain quantitative parameters for the assessment of ischemic disease. In this work, a new methodology and a software prototype developed for this task are presented. It has been validated with Coherent Contrast Imaging (CCI®) images acquired(More)
AIMS Data regarding the effects of TAVI on LV after are scarce and conflicting results have been reported immediately after aortic valvuloplasty. This study aimed to determine the acute haemodynamic effects of transcatheter aortic valve implantation (TAVI) in left ventricle (LV) diastolic performance, immediately after aortic valvuloplasty and prosthesis(More)
Strain Rate (SR) Imaging is a recent imaging technique that provides information about regional myocardial deformation by measuring local compression and expansion rates. SR can be obtained by calculating the local in-plane velocity gradients along the ultrasound beam from Doppler Tissue velocity data. However, SR calculations are very dependent on the(More)
BACKGROUND Preliminary experimental data have shown a nonuniform distribution of myocardial velocities (MVs) across the myocardial wall in normal conditions. However, after ischemic damage to the myocardium, a different pattern of reduction in the myocardial layers has been reported. The aim of this study is to analyze the spatial distribution of MVs and(More)
A 67 year-old asymptomatic patient was referred to our echo-lab because of hypertension. Transthoracic 2D-echocardiogram showed a non-prolapsing ovoid mass attached to the left side of the interatrial septum. Transesophageal echocardiography evidenced an ovoid cavitated mass with internal areas of calcification. Color Doppler revealed flow inside the(More)
genetic protein expression in human atherosclerotic lesions. Osteogenesis associates with inflammation in early-stage atherosclerosis evaluated by molecular imaging in vivo. Paradoxical effects of statins on aortic valve myofibroblasts and osteoblasts: implications for end-stage valvular heart disease. A 75-year-old woman was referred to our hospital for(More)
A n 84-year-old woman was admitted to our institution for transapical aortic valve implantation (TAVI) because of severe aortic stenosis coexisting with high-risk clinical conditions. She had a past history of type 2 diabetes mellitus, hypertension, intrinsic asthma, moderate to severe chronic renal insufficiency (Modification of Diet in Renal Disease(More)
INTRODUCTION AND OBJECTIVES The relationship between myocardial bridging and symptoms is still unclear. The purpose of our study was to assess the relationship between myocardial bridging detected by multidetector computed tomography and symptoms in a patient population with chest pain syndrome. METHODS The study enrolled 393 consecutive patients without(More)
A n 85-year-old woman presented to the emergency department with symptoms of acute heart failure. The patient had an extensive cardiac history, including a bioprosthetic mitral valve replacement (Mosaic II, number 2) in 1994 and a transcatheter transapical Edwards SAPIEN THV 23 mitral valve implant within the mitral bioprosthesis (valve-in-valve(More)
  • MANUEL DESCO, MARı́A J. LEDESMA-CARBAYO, +6 authors Gregorio Marañón
  • 2002
—This paper presents a methodology and a software package developed to quantify M-mode tissue Doppler imaging (TDI), defining a number of quantitative parameters drawn from velocity and gradient curves obtained after segmenting the myocardial wall into anatomical layers. The independent clinical predictive value of these parameters to detect motion(More)