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. 2017 Jul 6;10:3329–3336. doi: 10.2147/OTT.S140420

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© 2017 Xue et al. This work is published and licensed by Dove Medical Press Limited

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Examples of target delineation for GTV after induction chemotherapy.

Notes: (A) A-pre presents the tumor (green line) before induction chemotherapy (IC); A-post shows that the regressing part of the intracavitary lesion after IC was not included in GTV (red line). (B) B-pre presents the extension of tumor (green line) before IC; B-post shows that involved tissues (eg, pterygopalatine fossa) were included in GTV (red line) regardless of the regression. (C) C-pre presents the positive lymph node (green line) before IC; C-post shows that the GTV of lymph node (red line) was based on the post-IC volume.