Image-Guided Radiotherapy Strategies in Upper Gastrointestinal Malignancies

Organ motion due to breathing, peristalsis and deformation presents challenging problems for the delivery of highly conformal radiotherapy to upper abdominal targets, despite the many advancements in the technology of radiation planning and delivery. It is important to understand and account for this motion to avoid treatment inaccuracies, especially systematic errors that could potentially impact the probability of tumor control or increase …