Yuqing Xia

Accurate segmentation of organs at risk (OARs) is essential for high precision head and neck (H&N) radiotherapy, particularly for small and low contrast anatomical structures. Although nnUNet demonstrates strong overall segmentation performance, it typically...

To determine the optimal thickness of an electron skin collimator that minimizes the surface dose inhomogeneity (“hot” spots), which reached up to 23% for previous prototypes, while maintaining the prior penumbral advantages.