SYSTEM FOR EMISSION-GUIDED HIGH-ENERGY PHOTON DELIVERY

Disclosed herein are radiation therapy systems and methods. These radiation therapy systems and methods are used for emission-guided radiation therapy, where gamma rays from markers or tracers that are localized to patient tumor regions are detected and used to direct radiation to the tumor. The radiation therapy systems described herein comprise a gantry comprising a rotatable ring coupled to a stationary frame via a rotating mechanism such that the rotatable ring rotates up to about 70 RPM, a radiation source (e.g., MV X-ray source) mounted on the rotatable ring, and one or more PET detectors mounted on the rotatable ring. 本文公开了放射治疗系统和方法。这些放射治疗系统和方法用于发射引导式放射治疗，其中，检测来自定位于患者肿瘤区域的标记物或示踪物的伽马射线并将它用于向肿瘤引导辐射。本文所述的放射治疗系统包括门架，该门架包括可旋转环，该可旋转环经由旋转机构联接到固定框架，使得可旋转环以约70RPM以内的速度旋转；所述系统还包括安装在所述可旋转环上的辐射源(例如，MV X射线源)以及安装在所述可旋转环上的一个或多个PET检测器。