Figure 8
From: Internal Motion Estimation by Internal-external Motion Modeling for Lung Cancer Radiotherapy

The quantitative comparisons between the RoiMod, SurphaMod, and SurMod in intra-4DCT tracking (Cases 1–7) and inter-4DCT tracking (Cases 8–11) for all the clinical cases. The meanings of the symbols and letters above each box in this figure are the same as in Fig. 4.