Missing head and color banding in low-count SPECT reconstructions
نویسندگان
چکیده
منابع مشابه
Missing head and color banding in low-count SPECT reconstructions.
Due to low counts in an (111)In single photon emission computed tomography (SPECT) scan, a large part of the head was missing in the reconstructed images on Philips Extended Brilliance Workspace (EBW) and IntelliSpace Portal (ISP) workstations. This problem occurred for the ordered subsets expectation maximization (OSEM) algorithm with and without resolution recovery (Astonish), but not for fil...
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We demonstrate the reconstruction of a 3D, time-varying bolus of radiotracer from first-pass data obtained at the dynamic SPECT imager, FASTSPECT, built by the University of Arizona. The object imaged is a CardioWest Total Artificial Heart. The bolus is entirely contained in one ventricle and its associated inlet and outlet tracts. The model for the radiotracer distribution is a time-varying cl...
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ژورنال
عنوان ژورنال: EJNMMI Physics
سال: 2014
ISSN: 2197-7364
DOI: 10.1186/2197-7364-1-10