Όνομα Περιοδικού:e-Journal of Science & Technology e-Περιοδικό Επιστήμης & Τεχνολογίας
The modern hospital environment uses PACS (Picture Archiving and Communication
System) instrumentation for storing and process digital images. Breast cancer is of the highest causes
for women death. Routinely mammography examinations are performed for the early detection of
breast cancer and reference purposes. The purpose of this study was to evaluate the image quality of
digitized films which might be incorporated in digital hospital environment. The Artinis CDMAM type
3.4 phantom, was placed in contact with 40mm PMMA slabs and irradiated with Mo/Mo and Mo/Rh
typical X-ray mammographic spectra. The derived films were digitized with an AGFA Duo Scan
medical scanner with 8bit pixel depth and 1000ppi resolution. The optical density of the film was in the
linear pat of the scanner transfer curve. For the analysis of the digitized images the Image J software
was used. The contrast detail curve to both the analog and the digitized films was calculated
according to the CDMAM instructions. It was found that the 25kV mammogram was presented betted
contrast detail than the other exposure conditions. If the 28kV is consider the image quality of the film
depends upon the position of the phantom with respect to the film. In most cases the digitized film
presents worse contrast detail.