Resumo

BARBER GUTIERREZ, Antonio; HERNANDEZ NAJARRO, Roberto  e  MARTINEZ CANALEJO, Humberto. Fundamentación matemática de un software para calcular valores regionales de variables respiratorias. Rev Cubana Pediatr [online]. 1996, vol.68, n.3, pp. 152-163. ISSN 1561-3119.

As a result of the existing interest for knowing the regional values of the most useful respiratory variables in clinics, it is presented the mathematical foundation of a software that quantifies pulmonary images obtained in gamma-camera. The isotope distribution becomes into 16 regional values of the pulmonary function. The software evaluates the images starting from the relation isotope activity against time, and the incorporation of the following additional data: 1, FRC (functional residual capacity) of the lung; 2. beggining of radioactive injection (t_o); 3. cardiac output (CO); 4. pulse frequency (f); 5. barometric pressure (Pb ); 6. atmospheric oxygen fraction (F_{10 2}). The medical acronyms used are identified in this paper and a physiological introduction on every respiratory variable is given.

Palavras-chave : SOFTWARE; GAMMA CAMERAS; MATHEMATICS; RESPIRATORY FUNCTION TESTS [methods].