Patent ID: 11880986
Assignee: SIEMENS MEDICAL SOLUTIONS USA, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A gantry alignment system, comprising:
a non-radioactive structure positioned in a field-of-view of a multimodality medical scanner;
a non-transitory memory device for storing computer readable program code; and
a processor device in communication with the memory device, the processor device being operative with the computer readable program code to perform steps including
performing image reconstruction based on first and second image data of the non-radioactive structure to generate first and second reconstructed image volumes, wherein the first image data is acquired by using intrinsic radiation emitted by scintillator crystals of positron-emission tomography (PET) detectors in the multimodality medical scanner, wherein the second image data is acquired using magnetic resonance (MR) or computed tomography (CT) of the multimodality medical scanner, and
determining a gantry alignment transformation that aligns the first and second reconstructed image volumes.