Integrated PET/MRI scanner

摘要

In the integrated PET/MRI scanner provided with an RF coil for MRI and a plurality of PET detectors in the measuring port of the MRI scanner, the PET detectors are disposed with spaces therebetween and at least the transmitting coil elements of the RF coil for MRI are disposed between adjacent PET detectors. Here, the PET detectors are disposed in the circumferential direction of the measuring port with spaces therebetween and the transmitting coil elements are disposed in the axial direction of the measuring port. Alternatively, at least some of the PET detectors are disposed in the axial direction of the measuring port with spaces therebetween and the transmitting coil elements are disposed between adjacent PET detectors. The PET detectors can be DOI-type detectors capable of detecting position in the depth direction.

主权项

1. An integrated PET/MRI scanner comprising an RF coil for MRI and a plurality of PET detectors in a measuring port of an MRI scanner, wherein
the RF coil for MRI is divided into a transmitting coil element and a receiving coil element, the PET detectors are disposed with spaces therebetween and the transmitting coil element of the RF coil for MRI is disposed between adjacent PET detectors, wherein, with respect to the measuring port, a radially-inner most end of the receiving coil element of the RF coil for MRI is located further radially inward than a radially-inner most end of the PET detectors, each PET detector includes a combination of a scintillator that senses radiation and emits light and a light receiving element that senses the light emitted from the scintillator and converts the sensed light into an electrical signal, and wherein, with respect to the measuring port, a radially inner-most end of the scintillator of each PET detector is located further radially inward than a radially inner-most end of the transmitting coil element.