The problem of respiratory motion has proved a serious obstacle in developing techniques
to acquire images or guide interventions in abdominal and thoracic organs. Motion models …

The exquisite soft-tissue contrast of magnetic resonance imaging (MRI) has meant that the
technique is having an increasing role in contouring the gross tumor volume (GTV) and …

The use of magnetic resonance imaging (MRI) in radiotherapy (RT) planning is rapidly
expanding. We review the wide range of image contrast mechanisms available to MRI and …

Magnetic resonance imaging (MRI) is increasingly being used in the radiotherapy workflow
because of its superior soft tissue contrast and high flexibility in contrast. In addition to …

Purpose: Four‐dimensional computed tomography (4D‐CT) has been widely used in
radiation therapy to assess patient‐specific breathing motion for determining individual …

High precision conformal radiotherapy requires sophisticated imaging techniques to aid in
target localisation for planning and treatment, particularly when organ motion due to …

The Synchrony™ Respiratory Tracking System (RTS) is a treatment option of the CyberKnife
robotic treatment device to irradiate extra‐cranial tumors that move due to respiration …

PURPOSE: To quantify the interfractional variability in lung tumor trajectory and mean
position during the course of radiation therapy. METHODS AND MATERIALS: Repeated four …

This paper reviews recent advances in 4D medical imaging (4DMI) and 4D radiation therapy
(4DRT), which study, characterize, and minimize patient motion during the processes of …

Modeling of respiratory motion has become increasingly important in various applications of
medical imaging (eg, radiation therapy of lung cancer). Current modeling approaches are …