ESTRO 2024 - Abstract Book

S3885

Physics - Image acquisition and processing

ESTRO 2024

Conclusion:

We report a detailed analysis of SNR profiles for three brain setups compatible with radiotherapy immobilization devices for a T1 MPRAGE sequence. The two setups integrating a coil in the space between the posterior part of the head and the treatment table top showed an SNR increase >50% in the central transverse plane. Beyond the proposed T1 sequence, the presented methodology can be adapted to any sequences. Those quantitative results further support qualitative assessments of volunteer images.

Keywords: MR simulation, coils, positioning

References:

1 Accuracy of MRI-CT registration in brain stereotactic radiotherapy: Impact of MRI acquisition setup and registration method, Masitho et al., Z Med Phys 2022

2 Implementation of a dedicated 1.5 T MR scanner for radiotherapy treatment planning featuring a novel high-channel coil setup for brain imaging in treatment position, Mengling et al., Strahlender Onk 2021

3 Consensus opinion on MRI simulation for external beam radiation treatment planning, Paulson et al., Radiotherapy and Oncology 2016

2026

Digital Poster