ESTRO 2024 - Abstract Book

S4330

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

ESTRO 2024

Results:

All three healthy volunteers were successfully trained. One volunteer completed two MRI sessions (V01MR1 and V01MR2), and two volunteers completed one MRI session (V02MR1 and V03MR1). Median time efficiency increased from 46.0% (range 42.9-49.0%) during FB as clinical standard to 61.6% (range 52.6-75.0%) during mechanical ventilation at typical own frequency. Time efficiency increased further to 63.4% (range 49.8-70.9%) during 5 brpm. Median pancreas position variation was 8.0 mm (range 3.5-10.0 mm) during FB and increased to 8.4 mm (range 3.5 12.2 mm) during ventilation at typical own frequency. However, pancreas variation decreased to 6.9 mm (range 6.0 9.7 mm) during ventilation at 5 brpm.