Analise comparativa das variações de tempos de exposição, tipo de processamento e do efeito da degradação das soluções processadoras na qualidade da imagem radiografica

AUTOR(ES)
DATA DE PUBLICAÇÃO

2002

RESUMO

The aim of this research was to evaluate the variation of the exposure time, processing techniques and effect of the processing solution depletion in the image quality of the F-speed dental X-ray film (Insight), and to compare with Ektaspeed Plus, both from Kodak. The films were exposed in different exposure times and developed in manual and automatically conditions, in fresh and progressively depleted processing solutions. The comparison was based on densitometric analyze, subjective appraisals and on characteristics curves which allowed sensitometric properties evaluation. On the basis of the evaluation performed in this investigation, it was concluded that Insight is faster and more resistant than Ektaspeed Plus to the effects of the processing solution depletion, when processed in manual and automatically conditions. The exposure time for Insight can be reduced by 20% in comparison with Ektaspeed Plus at no detriment to image quality

ASSUNTO(S)

radiografia - qualidade da imagem densitometria

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