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Evaluation of silicona microstrip detectors as X-ray sensors in digital mammographyTadej Mali,
Vladimir Cindro,
Marko Mikuž,
Urban Zdešar,
Breda Jančar, 1999, original scientific article
Abstract: Background. Position sensitive silicon microstrip detectors are used as sensors for X rays in a digital imaging system. Silicon detectors were used inan edgeon geometry, yielding high X ray detection efficiency. Material and methods. A small detector system was assembled and tested. Images of a standard, 5 cm thick phantom were made and evaluated. It is demonstrated, thatthe use of silicon detectors in mammography could significantly contributeto a reduction of dose. All images were made with skin entrance doses lower than 1 mGy. Results and conclusion. Microcalcifications with a diameter of 350microm could still be detected with skin entrance doses of about 0.25 mGy. It was demonstrated that a 5 Ip/mm pattern can be detected. Image processing should further improve the image quality.
Published in DiRROS: 22.01.2024; Views: 492; Downloads: 115
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