Lung and Liver Radiation Therapy
SBRT requires high positional accuracy. AlignRT® is useful to help more accurately position you for treatment, as well as ensure your position does not change during beam delivery. With AlignRT® you can be tracked in real time, and radiation can be stopped if you move out of position.
Breath hold techniques are often used along with AlignRT®
In some cases, breathing movement can be a concern, particularly when treating tumors in the chest and abdomen area. Because the treatment is so precise, your natural breath movement may move you out of the planned treatment position. Your oncologists may use breath hold to help establish the correct position. You will be asked to hold your breath for 20 seconds. While you hold your breath, the radiation is delivered. It is important that the breath hold is at the same level each day to make sure the treatment is reproducibly delivered in the same way it has been planned.
1 Heinzerling JH, et al. Use of 3d optical surface mapping for quantification of interfraction set up error and intrafraction motion during stereotactic body radiation therapy treatments of the lung and abdomen. International Journal of Radiation Oncology • Biology • Physics 2017;99 (2):E670.