%0 Journal Article
%T Elabora£¿£¿o e implementa£¿£¿o de um programa para verifica£¿£¿o dos c¨¢lculos das unidades monitoras em radioterapia
%A M¨¹ller
%A M¨¢rcio Rog¨¦rio
%A Rodrigues
%A Laura Natal
%A Silva
%A Marco Ant£¿nio da
%J Radiologia Brasileira
%D 2005
%I Col¨¦gio Brasileiro de Radiologia
%R 10.1590/S0100-39842005000600007
%X objective: to develop and implement a software based on the manual calculation algorithm for verification of the calculations in radiotherapy monitor units and to establish acceptance levels as a mechanism of quality assurance. materials and methods: data were obtained from clinac 600c and 2100c varian linear accelerators and the computerized treatment planning system used was cadplan£¿. results: for the 6 mv beams the acceptance levels for deviations among the calculations of monitor units, divided by treatment area, were the following: breast (0.0% ¡À 1.7%), head and neck (1.5% ¡À 0.5%), hypophysis (-1.7% ¡À 0.5%), pelvis (2.1% ¡À 2.1%) and thorax (0.2% ¡À 1.3%). for the 15 mv beams the suggested level for pelvis in all the treatment techniques was (3.2% ¡À 1.3%). conclusion: the present data are sufficient to justify the use of the software in the clinical practice as a tool for the quality assurance program.
%K monitor units calculation
%K quality assurance
%K computerized treatment planning system.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0100-39842005000600007&lng=en&nrm=iso&tlng=en