myExam RT Assist 
Stereotactic Radiotherapy Cranial ProtocolSimon Atkins, BAppSc (Hons), MSc, DipIPEM(S), CMPS, and MACPSEM 
ICON Cancer Centre, Australia

The goal was to establish a unified imaging protocol across ICON centres, ensuring consistency while remaining feasible across different baseline systems (syngo MR XA30, XA50, and XA60). A key objective was to create a workflow that could be implemented with minimal radiotherapy-specific expertise required from on-site radiographers.

Physician requirements focused on achieving 1 mm isotropic 3D imaging for SRS treatments. In response, T1 SPACE and T2 SPACE sequences were prioritized due to their superior spatial resolution and high-quality three-dimensional datasets when compared with conventional T1 MPRAGE and T2 TSE acquisitions. The MPRAGE and T2 TSE sequences were retained as optional components to accommodate site-specific preferences.

To support consistent implementation across sites, the protocol also includes guidance images and explanatory text to assist radiographers during planning, with particular emphasis on maintaining critical parameters and avoiding unintended modifications.