Curso de Pos-Graduacao em Engenharia Eletrica e ... - UTFPR

ABSTRACT
A Quality Assurance Program in Diagnostic Imaging was installed in the Hospital de
Clinicas da Universidade Federal do Parana. The aim of the program is to ensure better
images generation, facilitating accurate diagnostics, and better medical care to the patient,
with the minimization of the radiation exposure. In the reject - repeat analysis it was possible
to establish the cause of radiographic loses, so as to identify the parts of the image generation
that had most of the problems. The biggest reject causes was: films too light (36%) and films
too dark (25,7%), following the bad patient positioning (10,9%). A work strategy was then
determined. A Protocol for Quality Control in Automatic Film Processors was installed, to
ensure the last step in image formation. The Protocol has all the required procedures to ensure
that the image isn't degraded at the moment of the exam processing. The sensitometric tests
showed to be an efficient instrument for the maintenance of image quality, and for problems
in the film processors identification. It also showed a substantial cost reduce with the drop in
the percentage of radiographic retakes from 20% to 8,5% in 20 months.
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