Abstract:Proton-relaxation-time measurements were performed on lyophilized urine samples collected from 11 recurrent calcium oxalate stone-formers, 9 uric acid stone-formers, 9 patients with various urological disorders, and 20 normal individuals. The T1 and T2 relaxation times were determined using a Bruker PC Multispec at 20 MHz at 37 degrees C for measurements of lyophilized sample and thereafter during gradual controlled rehydration. The prolongation of the relaxation times as a function of rehydration was found to… Show more
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