Scatter Radiation Dose From Digital Screening Mammography Measured in a Representative Patient Population
OBJECTIVE. The purpose of this study was to quantify the amount of scatter radiation received at the skin surface overlying the thyroid gland, salivary gland, lens of the eye, sternum, and uterus during a routine screening digital mammographic examination measured in a representative patient population.
SUBJECTS AND METHODS. The subjects were 207 women without symptoms with varied body mass indexes who underwent annual screening mammography while wearing six optically stimulated luminescence dosimeters placed at the bridge of the nose, right submandibular gland, right and left thyroid lobes, mid sternum, and 2 cm caudal to the umbilicus to assess scatter radiation dose to the skin.
RESULTS. The average scatter radiation doses at the skin surface during digital screening mammography in the representative population of women were as follows: overlying the right lobe of the thyroid, 0.24 mGy; left lobe of the thyroid, 0.25 mGy; salivary gland, 0.2 mGy; bridge of the nose, 0.025 mGy; sternum, 0.87 mGy; and umbilicus, 0.011 mGy. The scatter radiation doses at the umbilicus and the bridge of the nose were too low to measure with statistical confidence. Scatter radiation dose increased with increasing body mass index and increasing breast compression thickness.
CONCLUSION. Scatter radiation dose at the skin overlying organs of interest is a small fraction of the entrance skin dose to the breast. The low levels of scatter radiation measured do not support delaying clinically indicated mammography during early pregnancy.
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Work Title Scatter Radiation Dose From Digital Screening Mammography Measured in a Representative Patient Population Access Creators - Alison L. Chetlen
- Karen L. Brown
- Steven H. King
- Claudia J. Kasales
- Susann E. Schetter
- Julie A. Mack
- Junjia Zhu
Keyword - Mammography
- Radiation risk
- Scatter radiation
License In Copyright (Rights Reserved) Work Type Article Publisher - American Journal of Roentgenology
Publication Date January 21, 2016 Publisher Identifier (DOI) - https://doi.org/10.2214/AJR.15.14921
Deposited July 09, 2021 Versions
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Publication_Scatter_Radiation_AJR_February_2016__2_.pdf -
Added Creator Alison L. Chetlen
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Added Creator Karen L. Brown
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Added Creator Steven H. King
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Added Creator Claudia J. Kasales
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Added Creator Susann E. Schetter
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Added Creator Julie A. Mack
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Added Creator Junjia Zhu
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Updated Keyword, Publisher, Publisher Identifier (DOI), and 2 more Show ChangesKeywordPublisher
- Mammography, Radiation risk, Scatter radiation
Publisher Identifier (DOI)- American Journal of Roentgenology
Description- https://doi.org/10.2214/AJR.15.14921
Publication DateThe purpose of this study was to quantify the amount of scatter radiationreceived at the skin surface overlying the thyroid gland, salivary gland, lens of the eye, sternum, and uterus during a routine screening digital mammographic examination measured ina representative patient population.- OBJECTIVE. The purpose of this study was to quantify the amount of scatter radiation received at the skin surface overlying the thyroid gland, salivary gland, lens of the eye, sternum, and uterus during a routine screening digital mammographic examination measured in a representative patient population.
- SUBJECTS AND METHODS. The subjects were 207 women without symptoms with varied body mass indexes who underwent annual screening mammography while wearing six optically stimulated luminescence dosimeters placed at the bridge of the nose, right submandibular gland, right and left thyroid lobes, mid sternum, and 2 cm caudal to the umbilicus to assess scatter radiation dose to the skin.
- RESULTS. The average scatter radiation doses at the skin surface during digital screening mammography in the representative population of women were as follows: overlying the right lobe of the thyroid, 0.24 mGy; left lobe of the thyroid, 0.25 mGy; salivary gland, 0.2 mGy; bridge of the nose, 0.025 mGy; sternum, 0.87 mGy; and umbilicus, 0.011 mGy. The scatter radiation doses at the umbilicus and the bridge of the nose were too low to measure with statistical confidence. Scatter radiation dose increased with increasing body mass index and increasing breast compression thickness.
- CONCLUSION. Scatter radiation dose at the skin overlying organs of interest is a small fraction of the entrance skin dose to the breast. The low levels of scatter radiation measured do not support delaying clinically indicated mammography during early pregnancy.
2021-07-09- 2016-01-21