Estimation of cavity centroids and regions of interest in echocardiographic images. - Joaquim Pontes Marques de Sá; A. M. P. Monteiro; C. Abreu-Lima (ICPR (1), 1990)

Quantitative assessment of mitral regurgitation by automated contrast 2D echocardiography. - Shuqing Zhang; Joaquim Pontes Marques de Sá; M. Guerreiro; C. Abreu-Lima (CBMS, 1992)