IFMBE Proceedings : III Latin American Congress on Biomedical Engineering = III Congresso Latino-Americano de Engenharia = III Congreso Latinoamericano de Ingeniería Biomédica = XIX Congresso Brasileiro de Engenharia Biomédica - International Federation for Medical and Biological Engineering; Latin American Congress on Biomedical Engineering September 22-25, 2004 João Pessoa, Paraíba - Brazil (João Pessoa, Brazil SBEB, CORAL & IFMBE, 2004)