IMAGE DEFORMATION METHODS AND CURVED COUCH FOR RADIOTHERAPY TREATMENT PLANNING

摘要

Disclosed herein is a method for deforming patient images obtained with a couch of one set of physical properties (e.g. curvature) based on the physical properties (e.g. curvature) of a couch where radiation therapy treatment will be performed. Also disclosed herein is a radiotherapy delivery system which includes a non-flat couch top, on-couch planning, and optional deformable image registration. The methods and systems use images from scanners of various couch top shapes for treatment of radiotherapy patients without a need for specialized treatment planning imaging. In such methods and systems, treatment delivery can be performed based on only diagnostic images and setup images acquired at the time of treatment on the treatment machine. The radiotherapy delivery systems can include any combination of volumetric imaging with radiotherapy treatments with photon, proton, electron, andor other particle radiation.