Abstract
Organ motion is a substantial concern in the treatment of thoracic tumours using radiotherapy. A number of technologies have evolved in order to address this concern in both the fields of CT imaging and radiation delivery. This review paper investigates the technologies which have been developed for the delivery of radiotherapy as well as the accuracy and workload implications of their use. Treatment techniques investigated include: breath hold, breath gating, robotic compensation and MLC manipulation. Each technique has its own advantages and drawbacks in regards to accuracy, treatment time, linac alterations and workload. Further, some treatment techniques have specific requirements for what kind of CT scans needs to be used in the planning process. This, along with the aforementioned considerations, could influence the decision as to implement some of these treatment techniques in the clinic.
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