Impact of Contralateral Breast Shielding on the Risk of Developing Radiation-induced Cancer from Full-field Digital Mammography Screening |
| |
| Affiliation: | 1. Faculty of Medicine, University of Kufa, Najaf, Iraq;2. Radiography Directorate, University of Salford, Salford, UK;3. Division of Radiography, Karolinska Institute, Stockholm, Sweden;1. Radiation Medicine Program, Princess Margaret Hospital, University Health Network, Toronto, Canada;2. Toronto Rehab Institute, University Health Network, Toronto, Canada;3. Department of Psychiatry, University of Toronto, Toronto, Canada;4. ELLICSR, Princess Margaret Cancer Centre, Toronto, Canada;5. Department of Radiation Oncology, University of Toronto, Toronto, Canada;1. Health and Social Sciences Cluster, Singapore Institute of Technology, Singapore;2. Department of Health Technology and Informatics, Hong Kong Polytechnic University, HKSAR;3. Department of Health and Functioning, Western Norway University of Applied Sciences, Norway;1. Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada;2. Department of Radiation Oncology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada;1. Radiology Division, “ISTITUTO NAZIONALE TUMORI – IRCCS – FONDAZIONE G. PASCALE, NAPOLI, ITALIA”, Via Mariano Semmola, Naples, Italy;2. Radiology Division, “UNIVERSITA’ DEGLI STUDI DI NAPOLI FEDERICO II”, Via Pansini, Naples, Italy |
| |
| Abstract: | ObjectiveThe objective of this study was to investigate the impact of contralateral breast shielding on the risk of developing radiation-induced cancer from four-view full-field digital mammography (FFDM) screening.MethodsA poly methyl methacrylate-polyethylene breast phantom and adult ATOM dosimetry phantom were used to measure organ dose on four FFDM machines using craniocaudal and mediolateral oblique projections for each breast. A lead rubber shield of 0.25 mm equivalent lead thickness was used to protect the contralateral breast. Organs dose, effective dose, and effective risk were calculated. For effective risk estimations, the impact of the shield was considered for the routine screening views.ResultsThe contralateral breast dose was reduced by more than 95%. For each FFDM machine, contralateral breast dose reduction in μGy were 35.20 reduced to 1.93, 41.40 reduced to 0.01, 22.85 reduced to 1.24, and 22.76 reduced to 1.66. Effective risk reduction was significant (P < .05). For all FFDM machines, a small reduction was identified in sternum bone marrow dose due to the use of contralateral breast shield.ConclusionsThe results of the study demonstrate the value of a contralateral breast shield. More research is required to determine whether such a shield has clinical utility. |
| |
| Keywords: | Radiation dosimetry protective shield breast cancer cancer screening |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
