US 12,251,248 B2
Scanner and method of image reconstruction
Thomas R. Mackie, Verona, WI (US); John Hayes, Madison, WI (US); and Brent Harper, New Glarus, WI (US)
Assigned to LEO CANCER CARE, INC., Middleton, WI (US)
Filed by LEO CANCER CARE, INC., Middleton, WI (US)
Filed on Jul. 20, 2022, as Appl. No. 17/868,967.
Claims priority of provisional application 63/244,496, filed on Sep. 15, 2021.
Claims priority of provisional application 63/224,460, filed on Jul. 22, 2021.
Prior Publication US 2023/0038970 A1, Feb. 9, 2023
Int. Cl. A61B 6/40 (2024.01); A61B 6/00 (2006.01); A61B 6/03 (2006.01); A61B 6/42 (2024.01); G06T 11/00 (2006.01)
CPC A61B 6/035 (2013.01) [A61B 6/4035 (2013.01); A61B 6/4266 (2013.01); A61B 6/4447 (2013.01); A61B 6/4452 (2013.01); A61B 6/482 (2013.01); A61B 6/5205 (2013.01); G06T 11/005 (2013.01); G06T 11/006 (2013.01); A61B 6/4078 (2013.01); G06T 2211/408 (2013.01); G06T 2211/416 (2013.01); G06T 2211/424 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A computerized tomography (CT) scanner comprising:
a source defining an imaging plane; and
a filter including a first filter portion including a first material, a second filter portion including a second material, and a third filter portion including the first material and the second material;
wherein the third filter portion includes alternating columns of the first material and the second material, wherein each column intersects the imaging plane; and
wherein the filter is movable with respect to the source to align any one of the first filter portion, the second filter portion, and the third filter portion with the imaging plane.