PET-MRI combination apparatus

摘要

Disclosed herein is a PET-MRI combination apparatus which can extend transaxial and axial fields of view(FOV) by transmitting an output signal from a photo sensor to the outside of an MRI bore(20) using cable(30). The PET-MRI combination apparatus includes an MRI bore for capturing an MR image of an object. A PET detector(20) is installed inside imaging space of the MRI bore, and is configured such that a plurality of scintillation crystal arrays(22), each having scintillation crystals(21) arranged in a ring shape, is arranged in a longitudinal direction so as to extend a axial field of view(FOV). A PET circuit unit (40)is installed outside the MRI bore to prevent the PET circuit unit from being influenced by a magnetic field in the MRI bore, and is configured to include a signal amplification circuit(41) and a signal processing circuit. A cable is configured to connect the PET detector to the PET circuit unit, and wherein the cable is a low-capacitance cable which does not influence performance of PET imaging even if a cable having such a length as to extend outwards from the MRI bore is used.