Quality Assurance Assessment of Diagnostic and RadiationTherapy–Simulation CT Image Registration for Head and Neck Radiation Therapy:Anatomic Region of Interest–based Comparison of Rigid and DeformableAlgorithms

摘要

The presented quality assurance framework proved that deformable image registration (DIR) algorithms for most of the tested metrics improved registration performance over rigid registration but with notable variability between different algorithms, suggesting that careful validation of DIR is needed before clinical implementation.