Abstract

595
Objectives
The goal was to complete the development of a SPECT/MR insert for simultaneous SPECT-MR imaging of small animals.
Methods
The development of a 2nd generation SPECT/MR insert for simultaneous SPECT/MR imaging of small animals was completed and fully evaluated. It consists of 5 rings of 19 seamlessly connected 2.54x2.54 cm2, 16x16 pixels cadmium zinc telluride (CZT) detectors. The CZT detectors directly convert incident photons into electric signals and hence are minimally affected by the static magnetic field of the MRI. Two multi-pinhole (MPH) collimators of 18 and 36 PHs were designed with 1.0 and 1.5 mm resolution, respectively. The collimators were made of a cylindrical shell filled with high density tungsten powder and solid tungsten pinhole inserts. A shielded birdcage quadrature transmit/receive RF coil was designed for mouse imaging. It fit inside the MPH collimator to …

Date

2013

Authors

Benjamin Tsui, Jingyan Xu, Andrew Rittenbach, AbdEL-Monem El-Sharkawy, William Edelstein, Kevin Parnham, James Hugg

Source

Journal of Nuclear Medicine

Volume

54

Issue

supplement 2

Pages

595-595

Publisher

Society of Nuclear Medicine