Designing a shield to reduce radiation dose during mammography: Dosimetric evaluation
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D.Y. Lee , J.S. Lee  |
Department of Radiology, Inje University Haeundae Paik Hospital, 875, Haeundae-ro, Haeundae-gu, Busan, Republic of Korea , sonojinsoo@naver.com |
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Abstract: (3746 Views) |
Background: This paper presents a method to reduce radiation exposure during mammography by analysing the doses to ipsilateral and contralateral breasts and to adjacent organs by evaluating material-dependent shielding performance. Materials and Methods: Six target-filter combinations (Mo-Mo, Mo-Rh, Rh-Rh, Rh-Mo, W-Mo, W-Rh) were tested by measuring the doses delivered to the breasts and adjacent organs, with the contralateral (opposite side) breast shielded. The shield was designed to have a simple (┓,┎) shape for ease of use in actual clinical settings, using lead, copper, bismuth, and barium sulphate (BaSO4) as materials for shield configuration. Results: The dosimetric data revealed that the highest absorbed dose was exhibited by the target filter combination of Rh/Rh, followed by W/Rh, W/Mo, Rh/Mo, Mo/Rh, and Mo/Mo. Additionally, the radiation dose was reduced by 54–55%, with the average absorbed dose on the contralateral breast reduced from 0.655 to 0.359 mGy. All four shielding materials used in the experiments were analysed for the shielding effect. Conclusion: This Using a shield during screening mammography would alleviate concerns about the mammography-induced risk of breast cancer and secondary effects. |
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Keywords: Mammography, Simulation, Shielding material, Contralateral dose |
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Full-Text [PDF 2325 kb]
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Type of Study: Original Research |
Subject:
Radiation Biology
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