Abstract
The purpose of this study is to develop a numerical model for compressed breast of Japanese women which can evaluate the radiation dose in mammography. The model should take account of the average data for thickness of the compressed breast, and area, height and width of the mammograms. The compressed breast thickness is typically 4.4 to 6.4cm for European and American women, whereas it is under 3.8cm for Japanese women. Therefore, applying the European and American models without any modification for Japanese women would result in an overestimation of the absorbed dose. The data of 560 mammograms were analyzed focusing on the size and geometry of the projected images (cranio-caudal) to formulate a compressed breast phantom. An extremely good linear coefficient of correlation (0.98) between the area and the product of the width and height of the projected images was found. A numerical model describing a part of a simple elliptic column was constructed from this relationship and the averaged thickness (3.15cm) of the compressed breast. This model will lead to a realistic estimation of the total volumetric absorbed dose in mammography.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Japanese Journal of Medical Physics (Igakubutsuri)
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
