Abdominal compression evaluation for abdominal and lower lobe lung SABR using a compression belt system

Abdominal compression (AC) is a simple and effective method of reducing diaphragmatic motion and is widely used in abdominal stereotactic ablative body radiotherapy (SABR) delivery. It is not a new method of restricting motion; however, with the increase in SABR treatments there has been much interest in adopting this technique. Furthermore, there is some evidence that it reduces motion in lower lobe lung patients although this is more conflicting than in the abdomen. Respiratory motion, which affects the motion of organs, can make treating these sites more challenging and is especially important to manage with the higher dose SABR regimes.

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