METHOD FOR DOSE REDUCTION IN FULL-FIELD DIGITAL MAMMOGRAPHY USING TOTAL VARIATION BASED NOISE REMOVAL ALGORITHMS

摘要

The present invention relates to a method for reducing a dose in a full-field digital mammography through a noise removal algorithm based on total variation. More particularly, the present invention is to minimize an average glandular dose (AGD) given to a patient by reducing an amount of radiation, which is generated when a digital mammography device is used, through the total variation noise removal algorithm. The present invention suggests the total variation algorithm to maintain breast information as much as possible and to remove the noise. According to the present invention, the AGD given to the patient at 35 kVp, W/Rh, or (AGD; 2.77 mGy), which represents the worst condition, is represented as 0.88 mGy, which is reduced by 2.10 mGy.