Photon beam dose distributions for patients with implanted temporary tissue expanders
Asena, Andre, Kairn, Tanya, Crowe, Scott, & Trapp, Jamie (2015) Photon beam dose distributions for patients with implanted temporary tissue expanders. Journal of Physics : Conference Series, 573(1), 012062.
This study examines the effects of temporary tissue expanders (TTEs) on the dose distributions of photon beams in breast cancer radiotherapy treatments. EBT2 radiochromic film and ion chamber measurements were taken to quantify the attenuation and backscatter effects of the inhomogeneity. Results illustrate that the internal magnetic port present in a tissue expander causes a dose reduction of approximately 25% in photon tangent fields immediately downstream of the implant. It was also shown that the silicone elastomer shell of the tissue expander reduced the dose to the target volume by as much as 8%. This work demonstrates the importance for an accurately modelled high-density implant in the treatment planning system for post-mastectomy breast cancer patients.
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|Item Type:||Journal Article|
|Keywords:||temporary tissue expander, radiotherapy|
|Subjects:||Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > OTHER PHYSICAL SCIENCES (029900) > Medical Physics (029903)|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Statement:||Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.|
|Deposited On:||14 Jan 2015 22:56|
|Last Modified:||06 Sep 2016 03:18|
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