US 11,786,758 B2
Systems, methods, and devices for real-time treatment verification using an electronic portal imaging device
Christof Baltes, Oberwil-Lieli (CH); and Todd Holmes, Bethlehem, PA (US)
Assigned to SIEMENS HEALTHINEERS INTERNATIONAL AG, Steinhausen (CH); and VARIAN MEDICAL SYSTEMS, INC., Palo Alto, CA (US)
Filed by Siemens Healthineers International AG, Steinhausen (CH); and VARIAN MEDICAL SYSTEMS, INC., Palo Alto, CA (US)
Filed on May 26, 2021, as Appl. No. 17/330,728.
Application 17/330,728 is a continuation of application No. 16/845,435, filed on Apr. 10, 2020, granted, now 11,090,512.
Application 16/845,435 is a continuation of application No. 16/249,373, filed on Jan. 16, 2019, granted, now 10,682,527, issued on Jun. 16, 2020.
Application 16/249,373 is a continuation of application No. 15/002,526, filed on Jan. 21, 2016, granted, now 10,286,229, issued on May 14, 2019.
Application 15/002,526 is a continuation of application No. 14/175,492, filed on Feb. 7, 2014, granted, now 9,265,971, issued on Feb. 23, 2016.
Prior Publication US 2021/0283427 A1, Sep. 16, 2021
Int. Cl. A61N 5/10 (2006.01); A61B 6/00 (2006.01)
CPC A61N 5/1071 (2013.01) [A61B 6/486 (2013.01); A61N 5/1031 (2013.01); A61N 5/1045 (2013.01); A61N 5/1048 (2013.01); A61N 5/1067 (2013.01); A61B 6/42 (2013.01); A61B 6/4258 (2013.01); A61B 6/52 (2013.01); A61B 6/5205 (2013.01); A61N 5/1047 (2013.01); A61N 5/1075 (2013.01); A61N 2005/1054 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radiation therapy system, comprising:
a processing device including:
a treatment delivery module configured to instruct a radiation therapy device to deliver radiation according to a treatment plan;
an image processing module configured to receive image frames from an imaging device configured to receive the delivered radiation, to process the image frames into absolute dose values, and to determine measured absolute dose distributions; and
an evaluation module configured to compute comparisons between predicted absolute dose distributions and the measured absolute dose distributions and to determine radiation delivery errors based on the comparisons; and
a controller configured to control radiation delivery based on an output of the evaluation module.