SBRT planning for liver metastases: A focus on immobilization, motion management and planning imaging techniques.

ABSTRACT

AIM: To evaluate the different techniques used for liver metastases Stereotactic Body Radiation Therapy (SBRT) planning. We especially focused on immobilization devices, motion management and imaging used for contouring. BACKGROUND: Although some guidelines exist, there is no consensus regarding the minimal requirements for liver SBRT treatments. MATERIALS AND METHODS: We reviewed the main liver metastases SBRT publications and guidelines; and compared the techniques used for immobilization, motion management, margins and imaging. RESULTS: There is a wide variety of techniques used for immobilization, motion management and planning imaging. CONCLUSIONS: We provide a subjective critical analysis of minimal requirements and ideal technique for liver SBRT planning.