The electromagnetic interactions
between PET and MRI systems can be very challenging. This is because to
obtain good MR images, a homogeneous magnetic field is required. The
PET system comprises of electronics, metallic structures, ferromagnetic
components, current carrying power cables etc. These components are not
placed in the vicinity of the MRI scanner, but are integrated right at
the center of the magnet where the field homogeneity is compromised
leading to artifacts in MR images.
On the other hand, any powered electronics with ferromagnetic components
cannot function as intended in a strong static and/or time-varying
magnetic fields. Therefore, the main operation of the PET system is
compromised leading to corrupt PET data.
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