… MR scanners with greater bore sizes going from 60–70 cm bore diameter. This is relevant for
radiotherapy … be discussed in the chapter on MRI guidance for external beam radiotherapy. …

… (MRI) for guidance in external beam radiotherapy has faced significant … radiotherapy (IGART)
protocols. This study reviews open medical physics issues in MR-guided radiotherapy (…

… With the help of online MR guidance, radiation oncologists will soon be able to image
biomarkers during treatment and be able to adapt the plan or even change the treatment intent …

… Elekta MR-linac Consortium, which aims to coordinate international collaborative research
relating to the Elekta Unity (MR… ) are commercial members of the MR-linac Consortium. Elekta …

… Magnetic Resonance-guided radiotherapy (MRgRT) marks the beginning of a new era. MR
is a versatile and suitable imaging modality for radiotherapy, as it enables direct visualization …

… All contemporary non-MRI-guided radiotherapy systems use radiography guidance tools.
X-ray guidance can create 4D images of patients in <1 min 146 and enable the target position …

… For the near future, a shuttle-based approach would be a promising alternative for providing
MR-guided radiotherapy, so that the present study was initiated to determine feasibility and …

… Conflicts of interest: The Christie is a member of the Elekta MR-Linac consortium from which
… of image guidance, adaptive planning and magnetic resonance imaging in radiation therapy …

… writing clinical trial protocols to include imaging guidance as part of their clinical trial …
Many of the considerations and recommendations in this guidance may well apply to MR-…

… radiotherapy planning is the excellent soft tissue contrast. Figure 1 illustrates the difference
between CT and MR … ultrasound and MRI have potential for real-time RT guidance. Real-time …