X Method for Dose reduction in full-field digital mammography using total variation based noise removal algorithms

摘要

The present invention relates to a dose reduction method in a mammography apparatus using a noise elimination algorithm based on a full-variable approach, which reduces the radiation dose generated when a digital mammography apparatus is used by applying a total variation noise elimination algorithm, And to minimize the average grand dose (AGD). In the present invention, a total variation algorithm has been proposed to maintain maximum breast information and to remove noise. According to the present invention, the AGD of the patient was 0.88 mGy at 35 kVp, W / Rh, (AGD; 2.77 mGy), which is the worst image quality. 2.10 mGy decreased