Comparison of breast doses for digital tomosynthesis estimated from patient exposures and using PMMA breast phantoms

David R. Dance, Celia J. Strudley, Kenneth C. Young, Jennifer M. Oduko, Patsy Whelehan, E. H. Lindsay Mungutroy

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    13 Citations (Scopus)

    Abstract

    A proposed European protocol for dosimetry in digital breast tomosynthesis (DBT) has been applied to estimate the average glandular breast dose (AGD) for two different DBT units. AGD was measured for the examination of series of women and for breast-simulating polymethyl methacrylate (PMMA) phantoms, thus assessing the suitability of the phantoms used for dosimetry in 2D mammography for DBT dosimetry. For the first system the mean values of the AGD for breast thicknesses of 21mm, 53mm and 90mm, were 1.21±0.06 (2 s.e.m), 2.12±0.07 and 4.90±0.11 mGy respectively. The corresponding values for the equivalent PMMA thicknesses of 20mm, 45mm and 70mm were 0.92, 2.08 and 4.65 mGy respectively. Similar agreement was found for the second system. It is concluded that the use of standard PMMA phantoms of appropriate thicknesses (as used for 2D dosimetry) to simulate the breast in DBT provides a reasonable estimate of the AGD.
    Original languageEnglish
    Title of host publicationBreast Imaging
    Subtitle of host publication11th International Workshop, IWDM 2012, Philadelphia, PA, USA, July 8-11, 2012. Proceedings
    EditorsAndrew D. A. Maidment, Predrag R. Bakic, Sara Gavenonis
    Place of PublicationBerlin
    PublisherSpringer
    Pages316-321
    Number of pages6
    ISBN (Electronic)9783642312717
    ISBN (Print)9783642312700
    DOIs
    Publication statusPublished - 2012
    Event11th International Workshop on Breast Imaging - Houston Hall, University of Pennsylvania , Philadelphia, United States
    Duration: 8 Jul 201211 Jul 2012
    http://www.iwdm2012.org/tiki-index.php

    Publication series

    NameLecture notes in computer science
    PublisherSpringer
    Volume7361

    Workshop

    Workshop11th International Workshop on Breast Imaging
    Abbreviated titleIWDM 2012
    CountryUnited States
    CityPhiladelphia
    Period8/07/1211/07/12
    Internet address

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