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. Author manuscript; available in PMC: 2010 Mar 1.
Published in final edited form as: Radiother Oncol. 2008 Oct 29;90(3):367–376. doi: 10.1016/j.radonc.2008.08.012

Table 1.

A summary of IGRT approaches simulated in this study. The information of a row from left to right describes how a planning method relates to an IGRT treatment method.

Planning Method CTV-PTV Margin Organs at Risk Image Guidance Treatment Name
CRT 1cm 1 cm n/a Bony Alignment CRT Bone
CRT 0cm 0 cm n/a Block shaped to daily PTV CRT Re-plan
IMRT 1cm 1 cm bladder & rectum volumes Bony Alignment IMRT Bone
IMRT 0cm volume 0 cm bladder & rectum volumes Isocenter shifted to daily PTV center of mass IMRT Target
IMRT 0cm volume 0 cm bladder & rectum volumes Complete daily IMRT re-optimization IMRT Re-plan Volume
IMRT 0cm wall 0 cm bladder & rectum walls Complete daily IMRT re-optimization IMRT Re-plan Wall