Patent ID: 11951332
Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A system for emission guided radiation therapy (EGRT), comprising:
a scintillation camera directed at a region of interest (ROI) of a subject who is receiving a radiation treatment, wherein the subject is injected with a radioactive tracer or implanted with a radioactive marker before the radiation treatment, the ROI undergoes a physiological motion during the radiation treatment, and the scintillation camera is configured to detect single photons from annihilation photon pairs produced by interactions between the radioactive tracer or the radioactive marker and the subject; and
a processing device configured to adaptively adjust the delivery of the radiation treatment with respect to the physiological motion of the ROI by:
obtaining a plurality of reference images of the ROI corresponding to a plurality of motion phases of the ROI, each of the reference images being indicative of a distribution of the radioactive tracer or the radioactive maker in the ROI at a corresponding motion phase; and
adaptively adjusting, based on the single photons detected by the scintillation camera and the plurality of reference images, the delivery of a radiation beam with respect to the physiological motion of the ROI.