1
Q
Adapt to Plan (ATP)
A
Each treatment fraction starts with the acquisition of an online MRI. The pre-treatment dataset, contours and plan, together with the online MRI are used as input to adapt the plan for that specific session
2
Q
Adapt to Shape (ATS)
A
ATS allows for plan adaptation based on the new patient anatomy and the plan is optimized on the daily MRI and adapted contours.
3
Q
MRL Challenges
A
- New treatment modality
- Daily adaptive treatments
- Unique system(limited integration with other linac systems)
- Knowledge and skill gaps
- Radiation behaviour in a magnetic field
- Limited commercial QA solutions
- Limited training courses from 3rd parties
- Unique and new workflows
- New protocols (department and published) need to be established
- Machine design
- Unique beam energy
- Ring gantry (vs conventional C-arm)
- Full integration with the imaging system
- No light field
- Limitedboresize
- Presence of MR system (safety concerns and equipment restrictions)
- Comprehensive laser system not included as default (only a sagittal laser)
- Limited couch motion (SUP-INF on Unity only and fixed during treatment)
