title: Frequency-selective quantitation of short-echo time 1H magnetic resonance spectra.
abstract: Accurate and efficient filtering techniques are required to suppress large nuisance components present in short-echo time magnetic resonance (MR) spectra. This paper discusses two powerful filtering techniques used in long-echo time MR spectral quantitation, the maximum-phase FIR filter (MP-FIR) and the Hankel-Lanczos Singular Value Decomposition with Partial ReOrthogonalization (HLSVD-PRO), and shows that they can be applied to their more complex short-echo time spectral counterparts. Both filters are validated and compared through extensive simulations. Their properties are discussed. In particular, the capability of MP-FIR for dealing with macromolecular components is emphasized. Although this property does not make a large difference for long-echo time MR spectra, it can be important when quantifying short-echo time spectra.
authors: Department of Electrical Engineering, SCD-SISTA, Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, 3001 Leuven, Belgium. jean-baptiste.poullet@esat.kuleuven.be
authors: Jean-Baptiste
authors: JB
authors: Poullet
authors: Diana M
authors: DM
authors: Sima
authors: Sabine
authors: S
authors: Van Huffel
authors: Paul
authors: P
authors: Van Hecke
mesh_terms: D000818:Animals; D016477:Artifacts; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D013997:Time Factors; D014867:Water
chemical_list: D014867:Water