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Simultaneous measurement of patient dose and distribution of indoor scattered radiation during digital breast tomosynthesis
- Source :
- Radiography. 25:72-76
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Introduction Breast cancer incidence increases from the age of 30 years. As this age range coincides with that in which women usually pursue pregnancy, undergoing medical examinations for conditions such as breast cancer is a concern, especially when pregnancy is uncertain during the first eight weeks. Moreover, in this age range, breast often exhibits a high density, thus compromising diagnosis. For such density, digital breast tomosynthesis (DBT) provides a more accurate diagnosis than 2D mammography given its higher sensitivity and specificity. However, radiation exposure increases during DBT, and it should be determined. Methods We determined the entrance surface dose, scattered radiation dose, and average glandular dose (AGD), which can be mutually compared following an international protocol. Using our proposed method, the distribution of scattered radiation can be easily and quickly obtained with a minor load to the equipment. Then, we can determine the indoor scattered radiation and surface dose on patients during DBT. Results We obtained a maximum AGD of 2.32 mGy. The scattered radiation was distributed over both sides with maximum of approximately 40 μGy, whereas the maximum dose around the eye was approximately 10 μGy. Conclusion By measuring doses using the proposed method, a correct dose information can be provided for patients to mitigate their concerns about radiation exposure. Although the obtained doses were low, their proper management is still required. Overall, the results from this study can help to enhance dose management for patients and safety management regarding indoor radiation.
- Subjects :
- medicine.diagnostic_test
Phantoms, Imaging
business.industry
Digital Breast Tomosynthesis
Radiation Exposure
Radiation
Radiation Dosage
medicine.disease
Sensitivity and Specificity
030218 nuclear medicine & medical imaging
Radiation exposure
03 medical and health sciences
0302 clinical medicine
Breast cancer
030220 oncology & carcinogenesis
Maximum dose
medicine
Mammography
Distribution (pharmacology)
Radiology, Nuclear Medicine and imaging
Patient dose
Nuclear medicine
business
Subjects
Details
- ISSN :
- 10788174
- Volume :
- 25
- Database :
- OpenAIRE
- Journal :
- Radiography
- Accession number :
- edsair.doi.dedup.....ce976b38e02f6b33d9dd6394cb4ab278
- Full Text :
- https://doi.org/10.1016/j.radi.2018.10.006