Background MR-Linac allows for daily online treatment adaptation to the observed geometry
of tumor targets and organs at risk (OARs). Manual delineation for head and neck cancer …

Background In order to accurately accumulate delivered dose for head and neck cancer
patients treated with the Adapt to Position workflow on the 1.5 T magnetic resonance …

Background and purpose Deformable image registration (DIR) and contour propagation are
used in daily online adaptation for hybrid MRI linac (MRL) treatments. The accuracy of the …

Purpose The aim of this study is to evaluate the dose accuracy of bulk relative electron
density (rED) approach for application in 1.5 T MR-Linac and assess the reliability of this …

Abstract Introduction The Elekta Unity MR-Linac (MRL) has enabled adaptive radiotherapy
(ART) for patients with head and neck cancers (HNC). Adapt-To-Shape-Lite (ATS-Lite) is a …

Introduction Organ-at-risk segmentation for head and neck cancer radiation therapy is a
complex and time-consuming process (requiring up to 42 individual structure, and may …

Advances in magnetic resonance linear accelerators (MR-Linacs) allow for superior
visualization of soft tissue to guide online adaptive replanning for precise radiotherapy …

Aim: Head and Neck cancer (HNC) is an indication where patients may benefit from
treatment on an MRI integrated linear accelerator (MRL) with the superior soft tissue imaging …

Adaptive radiotherapy has been proposed to handle with the inter-and intra-fractional
uncertainties of patient motion and anatomical changes, in which, treatment re-planning is in …

Adaptive radiotherapy performed on the daily magnetic resonance imaging (MRI) is an
option to improve the treatment quality. In the adapt-to-shape workflow of 1.5-T MR-Linac …