Desenvolvimento de uma interface grÃfica de usuÃrio para modelos computacionais de exposiÃÃo externa / DEVELOPMENT OF A GRAPHIC USER INTERFACE FOR EXTERNAL EXPOSURE COMPUTATIONAL MODELS

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

To evaluate the absorbed dose by the patient, in a series of exams, it is necessary to accomplish simulations using an exposure computational model. Such models are fundamentally composed of a virtual representation of the human body (phantom) and a Monte Carlo code. There are several Monte Carlo codes available and also specific voxel phantoms for the two genders have been developed. However, the coupling of a voxel phantom to a Monte Carlo code is a complex process and it almost always results in the solution of a particular problem. This means that the use of these computational tools is nonviable in the routine of clinics and hospitals that carry out X-ray exams, because the simulations with exposure computational models demand time, knowledge about the used code and several adjustments have to be implemented from one simulation to another. In this context, a GUI (Graphics User Interface) called VoxelDose, which contains a archive of data with the result of the simulation of several X-ray exams in C++ was developed. The database was built using the voxel phantoms MAX (Male Adult voXel) and FAX (Female Adult voXel), and the Monte Carlo code EGS4 (Electron Gamma Shower, version 4). The software allows the user to create the archives of data, to insert new examinations, to visualize the region of the examination and the position of the source, to get conversion coefficients and to calculate dose. The software also allows the user to save or to print the dosimetric results

ASSUNTO(S)

dosimetry monte carlo dosimetria engenharia nuclear x-ray diagnoses fantomas de voxels raios-x diagnÃsticos graphics user interface graphics user interface monte carlo voxel phantom

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