Patent ID: 11878184
Assignee: SIEMENS HEALTHINEERS INTERNATIONAL AG
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 7:
8. A system for estimating a dose from a radiation therapy plan, the system comprising:
a memory that stores machine-readable instructions; and
a processor communicatively coupled to the memory, wherein the processor is operable to execute the machine-readable instructions to
generate a plurality of normal vectors that emanate from a plurality of points on a surface of a representation of a target volume and extend to a body surface,
quantify a dose fall-off curve along each of the normal vectors based on the radiation therapy plan, to produce a plurality of dose fall-off curves,
group a subset of the plurality of normal vectors that traverse an organ at risk,
determine a mean dose fall-off curve for the organ at risk based on the subset,
derive a dose-volume histogram for the organ at risk based on the mean dose fall-off curve and a mean distance between the target volume and the organ at risk, and
determine preferred beam orientations based on the dose fall-off curve along each of the normal vectors.