title: [Effect of breast composition on patient exposure in mammography].
abstract: Software for the estimation of patient exposure from mammography has been developed. Because it adopts average glandular dose, the estimation of patient exposure must take advantage of D(gN) (average glandular dose per unit entrance skin exposure). D(gN) depends on X-ray quality, compressed breast thickness, and breast composition. The software that was previously reported required information about breast composition. However, the new software that estimates breast composition uses a phantom with known breast composition to estimate average glandular dose and entrance surface dose. The authors were able to calculate average glandular dose that takes account of breast composition using this software. In addition, in a comparison with the mammogram in terms of the classification of mammary gland substance, the software showed high precision in terms of agreement. This software has sufficient utility because only the mammographic conditions are entered, and patient exposure can be easily estimated. Moreover, the half-value layer, incident exposure in air, D(gN), and breast composition can be specifically calculated.
authors.affiliation: Faculty of Radiological Technology, Fujita Health University, School of Health Sciences.
authors.forename: Yasuki
authors.initials: Y
authors.lastname: Asada
authors.forename: Shoichi
authors.initials: S
authors.lastname: Suzuki
authors.forename: Masahiro
authors.initials: M
authors.lastname: Yamada
authors.forename: Kumi
authors.initials: K
authors.lastname: Sakurai
authors.forename: Hiromi
authors.initials: H
authors.lastname: Susa
authors.forename: Shigenobu
authors.initials: S
authors.lastname: Maeda
authors.forename: Miyuki
authors.initials: M
authors.lastname: Ito
authors.forename: Yoshihito
authors.initials: Y
authors.lastname: Takeuchi
authors.forename: Hideki
authors.initials: H
authors.lastname: Shirakawa
mesh_terms: D001940:Breast / Q000033:anatomy & histology* / Q000528:radiation effects*; D005260:Female; D006801:Humans; D008327:Mammography; D011829:Radiation Dosage; D012984:Software