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. 2017 Oct 16;194(1):31–40. doi: 10.1007/s00066-017-1222-x

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© The Author(s) 2017

Open Access This 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.

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Fig. 1 — Color-wash isodose distribution projected on an axial CT slice before (a) and after RBI implantation (b) in the same patient with the planning target volume in red. Without RBI (a), the high-dose region >80% (green isodose) overlaps with the entire ventral part of the rectum (black line), whereas with the RBI in situ (b) the rectum is exposed to a dose <65% (blue isodose)