Technologic improvements in screen-film mammography.
During the past 20 years, many significant technologic improvements in mammographic x-ray equipment and screen-film-processing systems have occurred. Today it is possible to obtain mammograms with higher image quality at a significantly lower radiation dose, compared with mammograms dating back about 20 years. In this review article, clinical image comparisons and technical information--including x-ray spectra, limiting geometric resolution, sensitometric characteristic curves, modulation transfer function, and noise power spectra--are used to demonstrate technologic improvements in mammographic image quality.
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Health Sciences Division, Eastman Kodak Company, Rochester, NY 14650.
D005260:Female; D006801:Humans; D008327:Mammography / Q000379:methods*; D011829:Radiation Dosage; D011835:Radiation Protection; D011858:Radiographic Magnification / Q000379:methods; D013679:Technology, Radiologic; D014963:X-Ray Intensifying Screens