4Goetz C, Breton E, Choquet P, et al. SPECT low-field MRI sys- tem for small-animal imaging. J Nucl Med, 2008,49(1):88-93.
5Ha S, Hamamura MJ, Roeck WW, et al. Development of a new RF coil and gamma-ray radiation shielding assembly for improved MR image quality in SPECT/MRI. Phys Med Biol, 2010,55(9) : 2495-2504.
6Hamamura MJ', Ha S, Roeck WW, et al. Initial investigation of preelinical integrated SPECT and MR imaging. Technol Cancer Res Treat, 2010,9(1) : 21-27.
7Hamamura MJ, Ha S, Roeck WW, et al. Development of an MR-compatible SPECT system (MRSPECT) for simultaneous data acquisition. Phys Med Biol, 2010,55(6):1563-1575.
8Meier D, Wagenaar D J, Chen S, et al. A SPECT camera forcombined MRI and SPECT for small animals. Nucl Instrum Methods Phys Res A, 2011,652(1):731-734.
9Bullich S, Ros D, Pavia J, et al. Neurotransmission SPECT and MR registration combining mutual and gradient informa- tion. Med Phys, 2009,36(11) :4903-4910.
10Liao Y, Sun Y, Guo W, et al. A hybrid strategy to integrate surface-based and mutual-information-based methods for co- registering brain SPECT and MR images. Med Biol Eng Corn- put, 2011,49(6) :671-685.
