PET/MR SCANNERS FOR SIMULTANEOUS PET AND MR IMAGING

摘要

In a combined system, a magnetic resonance (MR) scanner includes a magnet configured to generate a static magnetic field at least in a MR examination region from which MR data are acquired. Radiation detectors are configured to detect gamma rays generated by positron-electron annihilation events in a positron emission tomography (PET) examination region. The radiation detectors include electron multiplier elements having a direction of electron acceleration arranged substantially parallel or anti-parallel with the static magnetic field. In some embodiments, the magnet is an open magnet having first and second spaced apart magnet pole pieces disposed on opposite sides of a magnetic resonance examination region, and the radiation detectors include first and second arrays of radiation detectors disposed with the first and second spaced apart magnet pole pieces.

主权项

1. An apparatus comprising:
a radio frequency coil for use in magnetic resonance imaging, the radio frequency coil including a resonant structure having a resonance frequency consonant with a magnetic resonance frequency; and radiation detectors including:
scintillators secured with the resonant structure, andoptical detectors arranged to detect scintillation events emanating from the scintillators.