Figure 5

The trends between RP NTCP and EAR of ipsilateral lung for patients treated with (a) IMRT or (b) VMAT. The EAR has units of excess cases per 10,000 person-years (PY)/Gy. Abbreviations: IMRT, intensity-modulated radiotherapy; VMAT, volumetric-modulated arc therapy; NTCP, normal tissue complication probability; EAR, excess absolute risk.