Abstract

We performed an initial evaluation of a state-of-the-art commercial preclinical PET/CT scanner (SuperArgus 4R, SEDECAL, Madrid, Spain). The PET unit consists of 4 rings of 96 detector modules each with an array of 338 1.45 × 1.45 × 15 mm3 pixelated LYSO and GSO phoswich crystals with DOI information. It has a maximum axial FOV of 100 mm and transaxial FOV of 120 mm. The CT unit consists of an x-ray source with variable micro focal spot size and a large 229 × 145 mm2 flat-panel detector that allows imaging of a volume-of-view (VOV) at three different magnifications, at a smallest voxel of 15 micron. We measured the sensitivity and uniformity of the PET unit using a calibrated Na-22 point source and a cylindrical phantom filled with a homogeneous FDG solution. The system resolution was determined from the reconstructed images of a thin FDG-filled capillary tube in air and inside a plastic cylinder, and a …

Date

2016

Authors

Taek-Soo Lee, Andrew Rittenbach, César Gutiérrez Fernández, Jesus Lopez-Longas, Juan M Arco, Benjamin MW Tsui

Conference

2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD)

Pages

1-4

Publisher

IEEE