Consequences of introducing geometric GTV to CTV margin expansion in DAHANCA contouring guidelines for head and neck radiotherapy.

CONCLUSION: Introduction of geometric margins resulted in more uniform CTV1 and CTV2 delineation. Geometric CTV expansion was easier, left less room for misinterpretation, and resulted in more uniform treatment plans with similar irradiated high and intermediate dose volumes across all centres.
PMID: 28987748 [PubMed - as supplied by publisher]

Source: Radiotherapy and Oncology : journal of the European Society for Therapeutic Radiology and Oncology - October 4, 2017 Category: Radiology Authors: Hansen CR, Johansen J, Samsøe E, Andersen E, Petersen JBB, Jensen K, Andersen LJ, Sand HMB, Bertelsen AS, Grau C Tags: Radiother Oncol Source Type: research