Fig. 1
From: Tangent-based volumetric modulated arc therapy for advanced left breast cancer
Target volume delineation of advanced left breast cancer. The CTV included a chest wall (CW, blue line), axillary lymph node region (AXLN, brown line), and internal mammary lymph node region (IMLN, dark blue line) and b supraclavicular fossa (SCF, cyan line) and infraclavicular fossa (ICF, brown line). The PTV (magenta line) was generated by expanding 0.5 cm from the CTV in all directions. c overview of target volume delineation