US 12,352,837 B2
Pseudo-CT image generation
Kevin Brown, Crawley (GB)
Assigned to Elekta Limited, Crawley (GB)
Appl. No. 17/753,238
Filed by Elekta Limited, Crawley (GB)
PCT Filed Aug. 27, 2020, PCT No. PCT/EP2020/074011
§ 371(c)(1), (2) Date Feb. 24, 2022,
PCT Pub. No. WO2021/038002, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 1912529 (GB), filed on Aug. 30, 2019.
Prior Publication US 2022/0291318 A1, Sep. 15, 2022
Int. Cl. G01R 33/56 (2006.01); A61B 6/00 (2024.01); A61B 6/03 (2006.01); A61N 5/10 (2006.01); G01R 33/54 (2006.01); G06T 7/00 (2017.01)
CPC G01R 33/5608 (2013.01) [A61B 6/03 (2013.01); A61B 6/5235 (2013.01); G01R 33/543 (2013.01); G06T 7/0012 (2013.01); G06T 2207/30096 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method for producing a calibrated pseudo-CT image of at least part of a body of a patient for radiation treatment planning, the method comprising:
obtaining a first pseudo-CT image of at least part of the patient;
obtaining radiation intensity data indicative of attenuation properties of one or more tissues within the patient; and
calibrating the first pseudo-CT image of at least part of the patient using the radiation intensity data to produce the calibrated pseudo-CT image.
 
14. A non-transitory computer readable medium comprising computer-executable instructions which, when executed by a processor, cause the processor to perform a method for producing a calibrated pseudo-CT image of at least part of a patient for radiation treatment planning, the method comprising:
obtaining a first pseudo-CT image of at least part of the patient;
obtaining radiation intensity data indicative of attenuation properties of one or more tissues within the patient; and
calibrating the first pseudo-CT image of at least part of the patient using the radiation intensity data to produce the calibrated pseudo-CT image.
 
18. A system for producing a calibrated pseudo-CT image of at least part of a patient for radiation treatment planning, the system comprising:
a radiation source and a radiation detector, the radiation source for delivering radiation to the patient, and the radiation detector being arranged to detect an intensity of radiation which has passed through the patient;
a controller; and
a non-transitory computer readable medium, the computer readable medium comprising computer-executable instructions which, when executed by the controller, cause the system to perform a method for producing a calibrated pseudo-CT image of at least part of a patient for radiation treatment planning, the method comprising:
obtaining a first pseudo-CT image of at least part of the patient;
obtaining radiation intensity data indicative of attenuation properties of tissues within the patient; and
calibrating the first pseudo-CT image of at least part of the patient using the radiation intensity data to produce the calibrated pseudo-CT image.