Evaluation of a multi-atlas CT synthesis approach for MRI-only radiotherapy treatment planning

Computed tomography (CT) imaging is the current gold standard for radiotherapy treatment planning (RTP). The establishment of a magnetic resonance imaging (MRI) only RTP workflow requires the generation of a synthetic CT (sCT) for dose calculation. This study evaluates the feasibility of using a multi-atlas sCT synthesis approach (sCTa) for head and neck and prostate patients.The multi-atlas method was based on pairs of non-rigidly aligned MR...