ESTRO 2024 - Abstract Book

S4183

Physics - Intra-fraction motion management and real-time adaptive radiotherapy

ESTRO 2024

Figure 2: Visualization of the motion (top three subfigures) with the motion estimated by Synchrony (red) and KIM (blue) in left-right (LR), cranio-caudal (CC) and anterior-posterior (AP) directions. Bottom shows the uncertainty metric of Synchrony (black) versus the calculated 3D difference between Synchrony- and KIM-estimated trace (red). Table 1: Mean (and range) of the root-mean-square difference (RMSD) for KIM vs phantom trace, Synchrony vs phantom trace, and KIM vs Synchrony in phantom and in clinical patients for left-right (LR), cranio-caudal (CC), anterior-posterior (AP) and 3D motion.

Mean RMSD

LR (mm)

CC (mm)

AP (mm)

3D (mm)

KIM vs phantom trace

0.31 (0.22-0.40) 0.42 (0.31-0.47)

0.24 (0.21-0.28) 0.22 (0.19-0.26)

0.56 (0.53-0.63) 0.57 (0.33-0.83)

0.69 (0.62-0.76) 0.75 (0.49-0.99)

Synchrony vs phantom trace

KIM vs Synchrony in phantom

0.44

0.14

0.55

0.72