ESTRO 2023 - Abstract Book

S1640

Digital Posters

ESTRO 2023

Results Median diaphragm motion amplitudes A1 were 9.1 mm, 7.9 mm and 9.4 mm on US1, MR1 and MR2 respectively. Median amplitudes A2 were 10.9 mm, 7.5 mm, and 8.6 mm, respectively (Figure 2). Median diaphragm motion amplitudes were not significantly different between the US derived amplitudes and MRI derived amplitudes (0.12

Conclusion Ultrasound is as equally accurate as MRI to quantify diaphragm motion during mechanical ventilation at 60 brpm, and preferred over MRI due to its availability, lower costs and higher temporal resolution.

PO-1895 The impact of 10MV FFF beams on delivery time for phase gated SBRT lung radiotherapy

R. Panagi 1 , A. Willett 1 , R. Stansbridge 1