Simultaneous PET and MR imaging
Yiping Shao, Simon R. Cherry(University of California, Los Angeles), Keyvan Farahani(University of California, Los Angeles), K. Meadors(University of California, Los Angeles), Stefan Siegel(University of California, Los Angeles), Robert W. Silverman(University of California, Los Angeles), Paul Marsden(St Thomas' Hospital)
Cited by 371
Abstract
We have developed a prototype PET detector which is compatible with a clinical MRI system to provide simultaneous PET and MR imaging. This single-slice PET system consists of 48 2 x 2 x 10 mm3 LSO crystals in a 38 mm diameter ring configuration that can be placed inside the receiver coil of the MRI system, coupled to three multi-channel photomultipliers housed outside the main magnetic field via 4 m long and 2 mm diameter optical fibres. The PET system exhibits 2 mm spatial resolution, 41% energy resolution at 511 keV and 20 ns timing resolution. Simultaneous PET and MR phantom images were successfully acquired.
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