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. 2014 Feb 26;61(1):30–37. doi: 10.1002/jmrs.42

Figure 2.

Figure 2

Verification of the margin between the CTV and PTV corrected for set up errors in (A) GTVold + CTVold +PTVnew and (B) GTVnew + CTVnew + PTVnew. The red line indicates the GTV, the blue line indicates the CTV and the green line indicates the PTV. CTV, clinical target volume; PTV, planning target volume; GTVold, old gross tumour volume; CTVold, old clinical target volume; PTVnew, new planning target volume; GTVnew, new gross tumour volume; CTVnew, new clinical target volume; GTV, gross tumour volume.