US 11,890,125 B2
Multimodal radiation apparatus and methods
Jacob Shea, Madison, WI (US); Brandon Frederick, Raleigh, NC (US); Eric Schnarr, McFarland, WI (US); and Daniel Gagnon, Twinsburg, OH (US)
Assigned to Accuray, Inc., Sunnyvale, CA (US)
Filed by Accuray, Inc., Sunnyvale, CA (US)
Filed on Sep. 20, 2021, as Appl. No. 17/479,645.
Application 17/479,645 is a continuation of application No. 16/694,145, filed on Nov. 25, 2019, granted, now 11,154,269.
Claims priority of provisional application 62/878,364, filed on Jul. 25, 2019.
Claims priority of provisional application 62/843,796, filed on May 6, 2019.
Claims priority of provisional application 62/836,352, filed on Apr. 19, 2019.
Claims priority of provisional application 62/836,357, filed on Apr. 19, 2019.
Claims priority of provisional application 62/821,116, filed on Mar. 20, 2019.
Claims priority of provisional application 62/813,335, filed on Mar. 4, 2019.
Claims priority of provisional application 62/801,260, filed on Feb. 5, 2019.
Claims priority of provisional application 62/800,287, filed on Feb. 1, 2019.
Claims priority of provisional application 62/796,831, filed on Jan. 25, 2019.
Claims priority of provisional application 62/773,700, filed on Nov. 30, 2018.
Claims priority of provisional application 62/773,712, filed on Nov. 30, 2018.
Prior Publication US 2022/0000443 A1, Jan. 6, 2022
Int. Cl. A61B 6/00 (2006.01); A61B 6/02 (2006.01); A61N 5/10 (2006.01); G06T 11/00 (2006.01); A61B 6/03 (2006.01); A61B 6/06 (2006.01); A61B 6/08 (2006.01); G06T 7/30 (2017.01); A61B 6/04 (2006.01)
CPC A61B 6/5282 (2013.01) [A61B 6/027 (2013.01); A61B 6/032 (2013.01); A61B 6/06 (2013.01); A61B 6/405 (2013.01); A61B 6/4078 (2013.01); A61B 6/4085 (2013.01); A61B 6/469 (2013.01); A61B 6/488 (2013.01); A61B 6/5205 (2013.01); G06T 11/005 (2013.01); A61B 6/025 (2013.01); A61B 6/03 (2013.01); A61B 6/035 (2013.01); A61B 6/0407 (2013.01); A61B 6/08 (2013.01); A61B 6/4014 (2013.01); A61B 6/4021 (2013.01); A61B 6/4028 (2013.01); A61B 6/4064 (2013.01); A61B 6/4435 (2013.01); A61B 6/4441 (2013.01); A61B 6/4458 (2013.01); A61B 6/481 (2013.01); A61B 6/482 (2013.01); A61B 6/483 (2013.01); A61B 6/484 (2013.01); A61B 6/541 (2013.01); A61B 6/582 (2013.01); A61N 5/107 (2013.01); A61N 5/1049 (2013.01); A61N 5/1067 (2013.01); A61N 5/1071 (2013.01); A61N 5/1082 (2013.01); A61N 2005/1085 (2013.01); A61N 2005/1091 (2013.01); A61N 2005/1095 (2013.01); G06T 7/30 (2017.01); G06T 11/008 (2013.01); G06T 2207/10081 (2013.01); G06T 2210/41 (2013.01); G06T 2211/404 (2013.01); G06T 2211/412 (2013.01); G06T 2211/424 (2013.01); G06T 2211/428 (2013.01); G06T 2211/432 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A multimodal imaging apparatus, comprising:
a rotatable gantry system positioned at least partially around a patient support;
a first source of radiation coupled to the rotatable gantry system, the first source of radiation configured for imaging radiation;
a second source of radiation coupled to the rotatable gantry system, the second source of radiation configured for at least one of imaging radiation or therapeutic radiation, wherein the second source of radiation has an energy level more than the first source of radiation; and
a first radiation detector coupled to the rotatable gantry system and positioned to receive radiation from the first source of radiation;
a second radiation detector coupled to the rotatable gantry system and positioned to receive radiation from the second source of radiation; and
a processor configured to:
combine first measured projection data based on the radiation detected by the first detector with second measured projection data based on the radiation detected by the second detector; and
reconstruct an image based on the combined data, wherein the reconstructing comprises at least one of:
correcting the second measured projection data using the first measured projection data;
correcting the first measured projection data using the second projection data; and
distinguishing different materials imaged in the combined data using the first measured projection data and the second measured projection.