US 12,303,318 B1
Computer-implemented method for determining spatially resolved radiation exposure information, x-ray device, computer program, and electronically readable data storage medium
Annette Birkhold, Stuttgart (DE)
Assigned to Siemens Healthineers AG, Forchheim (DE)
Filed by Siemens Healthineers AG, Forchheim (DE)
Filed on Oct. 21, 2024, as Appl. No. 18/921,229.
Claims priority of application No. 10 2023 210 869.0 (DE), filed on Nov. 2, 2023.
Int. Cl. A61B 6/00 (2024.01); A61B 6/40 (2024.01)
CPC A61B 6/542 (2013.01) [A61B 6/4035 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A computer-implemented method for determining spatially resolved radiation exposure information for a patient during an examination by an imaging X-ray device comprising an X-ray tube unit for emitting an X-ray field for the examination, wherein patient entrance dose information, which specifies an X-ray does acting on the patient, is determined, from which the radiation exposure information is determined, the method comprising:
determining preliminary dose information that specifies a homogeneously distributed X-ray dose acting on the patient in an absence of a compensating filter arranged between the patient and the X-ray tube unit in the X-ray field that is configured to cause an inhomogeneous dose distribution in a plane perpendicular to a central ray of the X-ray field;
calculating dose distribution information using the preliminary dose information, wherein the dose distribution information specifies at least a dose distribution of an X-ray dose acting on the patient in a portion of the X-ray field covered by the compensating filter, and wherein the dose distribution information is calculated by a filter model that uses at least one filter parameter specifying the compensating filter and an arrangement of the compensating filter in the X-ray field; and
determining the patient entrance dose information that specifies the X-ray dose acting on the patient using the dose distribution information.