Respiratory-gated radiotherapy in filter-free photon mode for the treatment of liver carcinomas

肝癌通常不能通过手术切除，因此必须考虑其他治疗方法，如放射治疗。在立体定向放射治疗中，非常大的剂量被递送到肿瘤，使得确保位置非常重要。

Cancer of the liver can often not be removed with surgery, and so other methods of treatment like radiation therapy must be considered. In stereotactic radiotherapy, very large doses are delivered to a tumor making it very important to ensure the location