Patent ID: 11931602
Assignee: VIEWRAY TECHNOLOGIES, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 4:
5. A system comprising:
a diagnostic-quality CT scanner for imaging a patient, the diagnostic-quality CT scanner having an imaging isocenter;
a radiation therapy device positioned adjacent the diagnostic-quality CT scanner, the radiation therapy device including a gantry carrying a radiation therapy beam source and having a radiation therapy isocenter separate from the imaging isocenter of the diagnostic-quality CT scanner;
a patient couch configured to position the patient for imaging and for radiation therapy by translating the patient between the diagnostic-quality CT scanner and the radiation therapy device; and
a non-transitory, machine-readable medium storing instructions which, when executed by at least one programmable processor, cause the at least one programmable processor to perform operations comprising:
receiving a treatment plan for the delivery of radiation therapy;
receiving diagnostic-quality CT images from the diagnostic-quality CT scanner;
morphing the treatment plan onto the diagnostic-quality CT images by applying deformable image registration to the treatment plan;
assessing a quality of dose distribution for the treatment plan;
reoptimizing the treatment plan when the quality of dose distribution is determined to be suboptimal; and
determining a dose delivery prediction by converting diagnostic-quality CT numbers in the diagnostic-quality CT images to electron densities.