title: CdZnTe strip detector SPECT imaging with a slit collimator.
abstract: In this paper, we propose a CdZnTe rotating and spinning gamma camera attached with a slit collimator. This imaging system acquires convergent planar integrals of a radioactive distribution. Two analytical image reconstruction algorithms are proposed. Preliminary phantom studies show that our small CdZnTe camera with a slit collimator outperforms a larger NaI(Tl) camera with a pinhole collimator in terms of spatial resolution in the reconstructed images. The main application of this system is small animal SPECT imaging.
authors.affiliation: Utah Center for Advanced Imaging Research, University of Utah, 729 Arapeen Drive, Salt Lake City, Utah 84108, USA. larry@ucair.med.utah.edu
authors.forename: Gengsheng L
authors.initials: GL
authors.lastname: Zheng
authors.forename: Daniel
authors.initials: D
authors.lastname: Gagnon
mesh_terms: D000465:Algorithms; D019187:Cadmium Compounds / Q000528:radiation effects; D004867:Equipment Design; D019544:Equipment Failure Analysis; D015902:Gamma Cameras; D007089:Image Enhancement / Q000295:instrumentation* / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013691:Tellurium / Q000528:radiation effects; D015899:Tomography, Emission-Computed, Single-Photon / Q000295:instrumentation* / Q000379:methods / Q000662:veterinary; D014159:Transducers; D017967:Zinc Compounds / Q000528:radiation effects
chemical_list: D019187:Cadmium Compounds; D017967:Zinc Compounds; D013691:Tellurium; C028337:cadmium telluride