title: CT reconstruction by using the MLS-ART technique and the KCD imaging system--I: low-energy X-ray studies.
abstract: We investigated the use of the kinestatic charge detector (KCD) combined with the multilevel scheme algebraic reconstruction technique (MLS-ART) for X-ray computer tomography (CT) reconstruction. The KCD offers excellent detective quantum efficiency and contrast resolution. These characteristics are especially helpful for applications in which a limited number of projections are used. In addition, the MLS-ART algorithm offers better contrast resolution than does the conventional convolution backprojection (CBP) technique when the number of projections is limited. Here we present images of a Rando-head phantom that was reconstructed by using the KCD and MLS-ART. We also present, for comparison, the images reconstructed by using the CBP technique. The combination of MLS-ART and the KCD yielded satisfactory images after just one or two iterations.
authors.forename: H
authors.initials: H
authors.lastname: Guan
authors.forename: M W
authors.initials: MW
authors.lastname: Gaber
authors.forename: F A
authors.initials: FA
authors.lastname: DiBianca
authors.forename: Y
authors.initials: Y
authors.lastname: Zhu
mesh_terms: D000465:Algorithms; D019047:Phantoms, Imaging; D014057:Tomography, X-Ray Computed / Q000379:methods*