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. 2015 Nov 24;10:239. doi: 10.1186/s13014-015-0549-7

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© Kim et al. 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 5 — Case study. Visible increase in rectal air volume during MR simulation relative to CT simulation for Patient 11 seen when comparing a T2-weighted MR image, b CT-SIM, and c synCT. Resulting differences in dose distributions at isocenter from d CT-SIM were seen in e dose distributions from synCT but not from methods assigning bulk electron density values to f water, h water + bone (491 HU), and i water + bone (300 HU). Increased dose for synCT can be seen in g vertical line profiles taken through dose planes at isocenter