Patent ID: 11865361
Assignee: SIEMENS HEALTHINEERS INTERNATIONAL AG
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. A method of radiation therapy treatment comprising:
receiving imaging data of a target volume;
dividing the imaging data of the target volume into a scanning pattern including a plurality of subfields having a first beam path scanning direction and a second beam path scanning direction to achieve a desired dose within the target volume and to achieve a maximum dose rate within a volume at risk, wherein the plurality of subfields have first beam path scan lengths of consecutive spot locations in the first beam path scan direction mid second beam path scan lengths of consecutive spot locations in the second beam path san direction, and wherein a plurality of the first beam path scan lengths of consecutive spot locations and a plurality of the second beam path scan lengths of consecutive spot locations are less than a longest length of consecutive spot locations in the scanning pattern; and
outputting a radiation therapy treatment plan operable to instruct a radiation therapy treatment system to perform a radiation therapy treatment according to the scanning pattern including independently scanning each subfield in the first beam path scanning direction at a faster scanning rate, and scanning in the second beam path scanning direction at a slower scanning rate.