Purpose Evidence for external beam radiation therapy (RT) as part of treatment for
retroperitoneal sarcoma (RPS) is limited. Preoperative RT is the subject of a current …

The presence of tumor and organ motions complicates the planning and delivery of
radiotherapy for gastrointestinal cancers. Without proper accounting of the movements …

Dose uncertainty induced by respiratory motion remains a major concern for treating
thoracic and abdominal lesions using particle beams. This Task Group report reviews the …

Purpose: Combined magnetic resonance imaging (MRI) systems and linear accelerators for
radiotherapy (MR‐Linacs) are currently under development. MRI is noninvasive and …

Background. In radiotherapy, the magnitude of respiratory-induced tumor motion is often
measured using a single four-dimensional computed tomography (4DCT). This magnitude is …

Objective. To develop real-time 4D MRI using MR signature matching (MRSIGMA) for
volumetric motion imaging in patients with pancreatic cancer on a 1.5 T MR-Linac system …

The recent development of intensity-modulated radiation therapy (IMRT) and improvements
in image-guided radiotherapy (IGRT) have provided considerable advances in the utilization …

Background To analyze the respiratory-induced motion of each liver segment using helical
computed tomography (helical CT) and 4-dimensional computed tomography (4DCT), and …

Purpose Diffusion-weighted imaging (DWI) of the abdomen has increased dramatically for
both research and clinical purposes. Motion and static field inhomogeneity related …

Purpose Interplay effects may influence dose distributions to a moving target when using
dynamic delivery techniques such as intensity‐modulated radiotherapy (IMRT). The aim of …