A contour-guided deformable image registration algorithm for adaptive radiotherapy
A contour-guided deformable image registration algorithm for adaptive radiotherapy
In adaptive radiotherapy, deformable image registration is often conducted between the planning CT and treatment CT (or cone beam CT) to generate a deformation vector field (DVF) for dose accumulation and contour propagation. The auto-propagated contours on the treatment CT may contain relatively large errors, especially in low-contrast regions. A …