Localization of phosphorus metabolites and sodium ions in the rat kidney

Relative amounts of phosphorus‐containing metabolites and sodium ions present in different regions of the in vivo rat kidney were obtained using a surface‐coil probe and recently developed NMR rotating‐frame methods. During altered physiologic states, changes in distribution of metabolites and sodium ions within the kidney were identified in one‐dimensional metabolite maps. This technique may have important applications to disorders commonly found in clinical medicine. © 1986 Academic Press, Inc.