Patent ID: 11911193
Assignee: SIEMENS HEALTHINEERS AG
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 18:
19. An apparatus for generating a resultant image dataset of a patient, the apparatus comprising:
a first interface configured to capture a first image dataset of the patient dependent upon a first X-ray quantum energy distribution and at least one second image dataset of the patient dependent upon at least one second X-ray quantum energy distribution;
a computation unit configured to
first establish a first spatial distribution of at least one first material in the patient based on the first image dataset and the second image dataset via a basis material decomposition,
second establish background image datasets based on the first image dataset and the second image dataset, the established background image datasets including a background image dataset associated with the first X-ray quantum energy distribution and a background image dataset associated with the second X-ray quantum energy distribution,
adapt values of the established background image datasets in regions in which the established first spatial distribution indicates a presence of the at least one first material, wherein a tissue image value associated with one respective X-ray quantum energy distribution is applied to the values of the respective background image dataset corresponding to the X-ray quantum energy distribution,
third establish a second spatial distribution of at least one second material in the patient based on the first image dataset and the second image dataset using a material decomposition and further based on the adapted values, and
generate a resultant image dataset based on at least the second spatial distribution of the at least one second material; and

a second interface configured to output the resultant image dataset.