US 11,864,932 B2
X-ray imaging systems for reducing artefacts associated with anti-scatter grids and methods of operating the same
Nishant Singh, Son en Breugel (NL); Klaus Jürgen Engel, Veldhoven (NL); Johannes Wilhelmus Maria Jacobs, Boxtel (NL); Bernd Menser, Hauset (BE); Lester Donald Miller, Hudson, OH (US); and Fred Simon Berend Van Nijnatten, Eindhoven (NL)
Assigned to KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Appl. No. 17/797,294
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Dec. 8, 2021, PCT No. PCT/EP2021/084690
§ 371(c)(1), (2) Date Aug. 3, 2022,
PCT Pub. No. WO2022/128654, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 20213697 (EP), filed on Dec. 14, 2020.
Prior Publication US 2023/0200756 A1, Jun. 29, 2023
Int. Cl. A61B 6/03 (2006.01); A61B 6/00 (2006.01)
CPC A61B 6/032 (2013.01) [A61B 6/4007 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An X-ray imaging system for acquiring two-dimensional or three-dimensional images of a subject, the imaging system comprising:
an X-ray source configured to emit X-rays from one or more X-ray emitting regions;
a detector system configured to receive a portion of the X-rays, which has been passed through the subject, wherein the X-rays are received on an X-ray sensitive surface of the detector system;
an anti-scatter arrangement, which is arranged in the beam path of the X-rays between the X-ray emitting region and the detector system;
wherein the imaging system is configured to acquire a first and a second image of the subject, wherein each of the first and second images shows
(a) a same portion of a body of the subject and
(b) an image artifact generated by the anti-scatter arrangement (9);
wherein the imaging system is configured to:
control a relative position of at least one of the one or more X-ray emitting regions, as seen in a coordinate system which is stationary relative to the anti-scatter arrangement and/or the X-ray sensitive surface so that the first and second images are acquired at different relative positions of the at least one X-ray emitting region relative to the anti-scatter arrangement and/or the X-ray sensitive surface; and to
generate, using a data processing system of the imaging system, an output image, based on each of the first and second images;
wherein the output image shows the portion of the body and in the output image, artefacts generated by the anti-scatter arrangement, are reduced, suppressed or eliminated compared to the first and the second image.