US 11,986,681 B2
Time-domain interleaving of imaging and treatment X-rays in a radiation therapy system
Simon Keller, Villigen (CH); Daniel Morf, Buch am Irchel (CH); and Peter Munro, Daettwil (CH)
Assigned to VARIAN MEDICAL SYSTEMS, INC., Palo Alto, CA (US)
Appl. No. 17/283,967
Filed by VARIAN MEDICAL SYSTEMS, INC., Palo Alto, CA (US)
PCT Filed Jul. 29, 2019, PCT No. PCT/EP2019/070365
§ 371(c)(1), (2) Date Apr. 9, 2021,
PCT Pub. No. WO2020/025541, PCT Pub. Date Feb. 6, 2020.
Claims priority of provisional application 62/711,483, filed on Jul. 28, 2018.
Prior Publication US 2021/0353964 A1, Nov. 18, 2021
Int. Cl. A61N 5/10 (2006.01); A61B 6/00 (2006.01); A61B 6/03 (2006.01); G06T 7/00 (2017.01); G06T 11/00 (2006.01)
CPC A61N 5/1081 (2013.01) [A61N 5/1067 (2013.01); A61B 6/032 (2013.01); A61B 6/541 (2013.01); A61N 5/1031 (2013.01); A61N 5/1038 (2013.01); A61N 5/1039 (2013.01); A61N 5/1049 (2013.01); A61N 2005/1054 (2013.01); A61N 2005/1061 (2013.01); A61N 5/107 (2013.01); A61N 5/1071 (2013.01); G06T 7/0012 (2013.01); G06T 11/008 (2013.01); G06T 2207/10081 (2013.01); G06T 2207/20081 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radiation treatment system comprising:
an X-ray imager;
a treatment-delivering X-ray source configured to direct treatment X-rays to a target volume; an imaging X-ray source configured to direct imaging X-rays through the target volume and toward the X-ray imager; and
a controller configured to:
determine that a first pulse from a series of pulses of treatment X-rays is timed to be directed to the target volume during a first imaging interval;
during the first imaging interval, direct first imaging X-rays through the target volume and inhibit the first pulse of treatment X-rays from being directed through the target volume; and
after the first imaging interval, direct a second pulse from the series of pulses of treatment X-rays to the target volume.