Patent ID: 8378677

Claim:
A diagnostic imaging apparatus comprising: a magnetic resonance portion that includes: a main magnetic coil assembly for generating a main magnetic field in an imaging region of the apparatus; a gradient coil assembly for overlaying gradient magnetic fields on the main magnetic field; an RF coil assembly for at least transmitting RF signals into the imaging region; a positron emission tomography portion including: a fluid cooled detector array for detecting radiation indicative of nuclear decay events, the detector array having a fluid cooling system other than a cooling system of the gradient coil assembly and other than a cooling system of the main magnetic coil assembly, the detector array being thermally proximate to the gradient coil assembly and maintained at a lower temperature than the thermally proximate gradient coil assembly by fluid cooling of the fluid cooled detector array; at least one reconstruction processor for producing an image representation from detected signals originating from the imaging region; and a display for displaying the reconstructed image representation.