M Ali, RMK, England, A ORCID: https://orcid.org/0000-0001-6333-7776, Tootell, AK and Hogg, P (2020) Radiation dose from digital breast tomosynthesis screening - A comparison with full field digital mammography. Journal of Medical Imaging and Radiation Sciences.

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Abstract

OBJECTIVES: To compare Mean Glandular Dose (MGD) and effective dose from digital breast tomosynthesis (DBT) screening with that from full field digital mammography (FFDM) screening. METHOD: To simulate compressed breasts, two Perspex-polyethylene breast phantoms were used, one phantom for compressed breast in craniocaudal and the other for compressed breast in mediolateral oblique. An adult ATOM dosimetry phantom was loaded with high sensitivity thermoluminescence dosimeters; the phantom was then positioned on Hologic Selenia Dimensions mammographic machine to imitate DBT and 4-view FFDM screening. Organ radiation doses were measured from 4-view DBT and 4-view FFDM (craniocaudal and mediolateral oblique views for each breast). Organ radiation doses were used to calculate effective dose from one screening session. RESULTS: MGD for DBT was 3.6 mGy; MGD for FFDM was 2.8 mGy. For DBT, other organs (e.g. thymus, lungs, salivary glands, thyroid, contralateral breast and bone marrow) radiation dose was also higher than for FFDM. The use of DBT for breast cancer screening increases the effective dose (E) of one screening session by 22%. E for DBT was 0.44 mSv; E for FFDM was 0.34 mSv. CONCLUSION: The use of DBT for breast cancer screening increases the radiation dose to screening clients.

Item Type: Article
Additional Information: The final version of this article and all relevant information regarding copyrights and more can be found online at; https://www.jmirs.org/article/S1939-8654(20)30261-7/fulltext#%20
Uncontrolled Keywords: Breast imaging Dosimetry Organ dose Breast cancer
Subjects: Q Science > Q Science (General)
R Medicine > R Medicine (General)
R Medicine > R Medicine (General) > R735 Medical education. Medical schools. Research
R Medicine > RA Public aspects of medicine
R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine
Divisions: Faculty of Medicine and Health Sciences > School of Allied Health Professions
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Depositing User: Symplectic
Date Deposited: 10 Nov 2020 15:53
Last Modified: 10 Nov 2020 15:53
URI: https://eprints.keele.ac.uk/id/eprint/8824

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