title: Quantitative 23Na magnetic resonance imaging of model foods.
abstract: Partial (23)Na MRI invisibility in muscle foods is often referred to as an inherent drawback of the MRI technique, impairing quantitative sodium analysis. Several model samples were designed to simulate muscle foods with a broad variation in protein, fat, moisture, and salt content. (23)Na spin-echo MRI and a recently developed (23)Na SPRITE MRI approach were compared for quantitative sodium imaging, demonstrating the possibility of accurate quantitative (23)Na MRI by the latter method. Good correlations with chemically determined standards were also obtained from bulk (23)Na free induction decay (FID) and CPMG relaxation experiments on the same sample set, indicating their potential use for rapid bulk NaCl measurements. Thus, the sodium MRI invisibility is a methodological problem that can easily be circumvented by using the SPRITE MRI technique.
authors.affiliation: SINTEF Fisheries and Aquaculture, N-7465 Trondheim, Norway. emil.veliyulin@sintef.no
authors.forename: Emil
authors.initials: E
authors.lastname: Veliyulin
authors.forename: Bjørg
authors.initials: B
authors.lastname: Egelandsdal
authors.forename: Florin
authors.initials: F
authors.lastname: Marica
authors.forename: Bruce J
authors.initials: BJ
authors.lastname: Balcom
mesh_terms: D000818:Animals; D005399:Fishes; D005504:Food Analysis / Q000379:methods*; D005519:Food Preservation / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008460:Meat / Q000032:analysis*; D018482:Muscle, Skeletal / Q000737:chemistry; D012965:Sodium Chloride / Q000032:analysis*; D012975:Sodium Isotopes; D013552:Swine
chemical_list: D012975:Sodium Isotopes; D012965:Sodium Chloride