Ruiqi Li

Therapy Physics

The increasing adoption of MRI-guided online adaptive radiotherapy (oART) has improved treatment personalization but introduced substantial technical complexity and time pressure. Existing QA approaches remain largely manual and retrospective, with limited ab...

One major bottleneck in MRI-guided online adaptive radiotherapy is the prolonged treatment process, particularly extended delivery times, partly due to the relatively low dose rate and high prescription doses. Efficient radiation delivery is essential for mai...

Magnetic resonance imaging-guided online adaptive radiotherapy (MRgRT) requires a complex planning process, during which an upstream peer review prior to physician approval plays an essential role in early error detection and supporting safe and efficient onl...

To compare MR-simulation motion emulation with measured respiratory gating performance for ultra-central lung treatments on 1.5T MR-linac and to identify the dominant factors affecting gating efficiency. The study focuses on the role of tracking surrogate sel...

Vacuum cradles/bags (VC) combined with head and leg immobilization are commonly used for prostate stereotactic body radiotherapy (SBRT) treatment setup. Removing the VC may offer practical advantages for efficient patient positioning, comfort, and high-qualit...

MRI-based intrafraction motion management is increasingly used during MR-guided adaptive radiotherapy, yet limited data exist on its real-world performance and limitations across disease sites. This study reports institutional experience with Comprehensive Mo...