title: A comparison of RIGR and SVD dynamic imaging methods.
abstract: Several constrained imaging methods have recently been proposed for dynamic imaging applications. This paper compares two of these methods: the Reduced-encoding Imaging by Generalized-series Reconstruction (RIGR) and Singular Value Decomposition (SVD) methods. RIGR utilizes a priori data for optimal image reconstruction whereas the SVD method seeks to optimize data acquisition. However, this study shows that the existing SVD encoding method tends to bias the data acquisition scheme toward reproducing the known features in the reference image. This characteristic of the SVD encoding method reduces its capability to capture new image features and makes it less suitable than RIGR for dynamic imaging applications.
authors.affiliation: Biomedical Magnetic Resonance Laboratory, University of Illinois at Urbana-Champaign 61801, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Hanson
authors.forename: Z P
authors.initials: ZP
authors.lastname: Liang
authors.forename: R L
authors.initials: RL
authors.lastname: Magin
authors.forename: J L
authors.initials: JL
authors.lastname: Duerk
authors.forename: P C
authors.initials: PC
authors.lastname: Lauterbur
mesh_terms: D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*