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Nesse trabalho, apresenta-se uma das aplicacoes da modelagem matematica no sistema cardiovascular, a sua utilizacao na estimacao do volume ventricular esquerdo - um parâmetro fundamental no diagnostico de doencas cardiacas. Para isso, prepara-se um molde de um ventriculo esquerdo bovino, seu volume real e determinado e, entao, comparado com os resultados obtidos por metodos matematicos medicos e com um novo metodo proposto, baseado na integral de revolucao de uma funcao polinomial especifica. Os resultados preliminares indicam que o metodo proposto e mais eficiente que os metodos medicos, com diferenca de apenas 3,5% do volume real. Palavras-chave: Modelagem Matematica. Novo Metodo de Calculo. Volume Ventricular. Mathematical modeling and the determination of a new method of the ventricular volume calculation ABSTRACT In this work, we presented one of the applications of mathematical modeling to the cardiovascular system, its use in the estimation of the left ventricular volume, which is a basic parameter in the diagnosis of heart disease. To do that, a mold of a bovine left ventricle is prepared, its real volume is determined and then it is compared to the results achieved by medical mathematical methods and with a new proposed method, based on the integral of revolution of a specific polynomial function. Preliminary results indicate that the proposed method is more efficient than medical methods, with a difference of only 3.5% of the actual volume. Keywords : Mathematical Modeling. New Calculation Method. Ventricular Volume.

Modelagem matemática e a determinação de um novo método de cálculo do volume ventricular