Technological improvements in mammography over the past 20 years.
During the past twenty years many significant technological 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 to mammograms dating back about 20 years. In this review article, X-ray spectra, limiting geometric resolution, characteristic (H & D) curves, modulation transfer function (MTF) and noise power spectra (NPS) are used to demonstrate technological improvements in mammographic screen-film image quality.
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Health Sciences Division, Eastman Kodak Company, Rochester, NY 14650.
D005260:Female; D049673:History, 20th Century; D006801:Humans; D008327:Mammography / Q000266:history* / Q000592:standards; D013679:Technology, Radiologic / Q000266:history / Q000592:standards