US 12,403,327 B2
Radiation treatment planning systems and methods with interpolable spot placements and dose distributions
Petri Hirvonen, Espoo (FI); and Pavel Falkovskiy, Helsinki (FI)
Assigned to SIEMENS HEALTHINEERS INTERNATIONAL AG, Steinhausen (CH)
Filed by Siemens Healthineers International AG, Steinhausen (CH)
Filed on Mar. 8, 2023, as Appl. No. 18/119,238.
Prior Publication US 2024/0299773 A1, Sep. 12, 2024
Int. Cl. A61N 5/10 (2006.01); G16H 20/40 (2018.01)
CPC A61N 5/1031 (2013.01) [G16H 20/40 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A computer system, comprising:
a processor; and
memory coupled to the processor and comprising instructions that, when executed, cause the processor to perform a method used for planning radiation treatment comprising spot scanning of a target volume, the method comprising:
accessing, from the memory, a first arrangement of a plurality of spots inside the target volume;
accessing, from the memory, a respective dose distribution for each spot of the plurality of spots inside the target volume;
determining for said each spot whether differences between the respective dose distribution for a spot and respective dose distributions for spots that are neighbors to the spot satisfy a criterion;
identifying a first set of spots that do not satisfy the criterion; and
increasing a number of spots inside regions of the target volume that include locations of the first set of spots to produce a second arrangement of a plurality of spots inside the target volume.