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

Claim 0:
1. A method for estimating a dose from a radiation therapy plan, the method comprising:
generating 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;
generating 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;
selecting a subset of the plurality of normal vectors that traverse an organ at risk;
determining a mean dose fall-off curve for the organ at risk based on the subset;
determining 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
determining preferred beam orientations based on the dose fall-off curve along each of the normal vectors.