M. A. García-Fernández

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The use of Tissue Doppler Imaging Imaging (TDI) has allowed to obtain velocity, strain and strain rate parameters in real time and is currently used routinely in the echocardiography lab. For analysis2D image sequences, profiles are marked on the image, and quantitative time profiles are obtained from them, a procedure known as anatomic M-mode. For correct(More)
Evaluation of regional myocardial function using non-invasive techniques is an important goal in clinical cardiology. This work presents a new methodology and software developed for this task, its main features are the visualization and quantification of the motion and deformation of the myocardial wall along the cardiac cycle, using sequences of ultrasound(More)
A quantification methodology is proposed for the analysis of DTI M-mode images. After an enhancement stage, the cardiac wall is divided into several layers from which time curves and parameters are computed. A clinical study has been carried out, comparing normal and ischemic patients, in order to characterise the most relevant parameters that assess the(More)
A simple and inexpensive procedure to obtain M-mode tracings at any level or direction from two-dimensional echocardiograms is described. The method permits a complete M-mode visualization of 1) segmental motion of the cardiac walls, 2) structures difficult to reach with conventional procedures, and 3) two or more cardiac valves simultaneously.
The oxidation of buprenorphine on a carbon paste electrode has been studied using voltammetric techniques under both semi-infinite linear diffusion and hydrodynamic conditions. By applying a simple electrode pretreatment a good reproducibility of the current signal is obtained (R.S.D. = 0.85%, n = 6 for a 1.0 x 10(-5) M buprenorphine concentration). The(More)
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