Figure 12.

Omni-tomography idea for grand fusion of multiple imaging modalities. (a) and (b) are cross-sectional and volumetric views respectively, where two donut-shaped magnets are paired to define a uniform background field covering an intended ROI, while other modalities such as CT and SPECT can be arranged between the magnetic rings [99]. To facilitate electromagnetic shielding, CT and and/or SPECT subsystems can be made stationary with a multi-source and/or multi-camera interior imaging arrangement (patent pending).