Figure 4
From: Internal Motion Estimation by Internal-external Motion Modeling for Lung Cancer Radiotherapy
The quantitative comparisons between the RoiMod, SurphaMod, and SurMod in intra-fraction tracking (Cycles 2, 3) and inter-fraction tracking (Cycles 4, 5) on the NCAT phantom. The meanings of the symbols in this figure are the same as in Fig. 2. The letters above each box indicate whether a statistically significant difference exists between any two tracking models. With different letters indicates statistical significance while the same letters for statistical insignificance.
