Diferença da caracterização tecidual ultrassonográfica (CATUS) comparada com a ultrassonografia modo B na hiperplasia miointimal em aorta de coelhos induzidos com aterosclerose

Abstract

Context: miointimal thickening is a early vascular changes, above the sign ateromatosa. Such thickening corresponds to an early stage of atherosclerosis, which can be viewed through the B mode ultrasound; having this thickening prognostic value well demonstrated as a predictor of future vascular events. The grayscale ultrasound was used until recently as a non-invasive method pattern to identify and discriminate the composition of atherosclerotic plaque. An innovative approach of analysis of radio signals emitted by B-mode ultrasound, made possible the development of an ultrasound technique called color ultrasound tissue characterization (CATUS), this is promising in atherosclerotic vulnerable plaque detection and evaluation of his natural history; soon, prospective studies using the analysis provided by this instrument can corroborate the distinction of boards susceptible to rupture and, consequently assist in prevention of cardiovascular events. Objective: To determine the difference of ultrasound tissue characterization (CATUS) compared to B-mode ultrasonography in myointimal hyperplasia. Hypothesis: There is difference in ultrasound tissue characterization compared to B-mode ultrasonography in myointimal hyperplasia. Type of study: experimental, cross-sectional comparative study. Sample: The sample was probabilistic, for convenience, in aortas of 10 albino rabbits of the genus Oryctolagus cuniculus, belonging to New Zeland. Variable: The difference of ultrasound tissue characterization (CATUS) compared to B-mode ultrasound in myointimal hyperplasia.