US 12,461,045 B2
Procedure for generating fluoroscopic images for the reconstruction of a volume in a flat object using an X-ray system
Mareike Töpperwien, Hamburg (DE); and Philipp Klein, Hamburg (DE)
Assigned to Comet Yxlon GmbH, Hamburg (DE)
Filed by Comet Yxlon GmbH, Hamburg (DE)
Filed on Nov. 13, 2023, as Appl. No. 18/507,218.
Claims priority of application No. 10 2022 129 970.8 (DE), filed on Nov. 14, 2022.
Prior Publication US 2024/0159691 A1, May 16, 2024
Int. Cl. G01N 23/04 (2018.01); G01N 23/046 (2018.01)
CPC G01N 23/043 (2013.01) [G01N 23/046 (2013.01); G01N 2223/3303 (2013.01); G01N 2223/427 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A procedure for generating fluoroscopic images for reconstruction of a volume in a flat object using an X-ray system, which has three imaging components, a tube, a detector, and a manipulator, located between them, on which the flat object is fixed,
wherein the flat object extends multiple times further in two dimensions—called surface area—than in its third dimension—called thickness—wherein the tube has a focus, which, in a central position of the tube, forms a coordinate origin of a Cartesian coordinate system, and which emits an X-ray, wherein a vector from the tube through the volume forms an x axis of the coordinate system and a z axis is perpendicular to a vector formed through the thickness,
wherein the manipulator is rotated about a rotational axis, which is perpendicular to the x axis, runs parallel to the z axis and is displaceable parallel to the x axis,
wherein the rotational axis extends through the volume each time a fluoroscopic image is generated,
wherein a distance between the tube and the rotational axis is altered such that when the flat object is rotated about the rotational axis, the flat object has as small as possible a distance to the tube at every angle of rotation (Θ), wherein the distance does not fall below a definable minimum distance,
wherein fluoroscopic images are made at predefinable angles of rotation (Θ) and angle increments (dr°) between neighbouring predefinable angles of rotation (Θ) are larger in case of smaller distances of the rotational axis from the tube than in case of larger distances of the rotational axis from the tube.