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Radiation dosimetry in digital breast tomosynthesis: Report of AAPM
Tomosynthesis Subcommittee Task Group 223
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dose involved in
any medical imaging modality that uses ionizing radiation needs to be well
understood by the medical physics and clinical community. This is especially true of
screening modalities. Digital breast tomosynthesis (DBT) has recently been introduced into the
clinic and is being used for screening for breast cancer in the general population.
Therefore, it is important that the medical physics community have the required
information to be able to understand, estimate, and communicate the radiation
involved in breast tomosynthesis
imaging. For this
purpose, the American Association of Physicists in Medicine Task Group 223 on
prepared this report that discusses dosimetry in breast imaging in general, and
describes a methodology and provides the data necessary to estimate mean breast glandular
dose from a
acquisition. In an effort to maximize familiarity with the procedures and data provided in
this Report, the methodology to perform the dose estimation in DBT is based as much as possible on that
used in mammography
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