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http://dx.doi.org/10.17946/JRST.2021.44.4.315

The Study of Lipid Proton Composition Change in a Rat Model of High Fat Diet Induced Fatty Liver by Magnetic Resonance Spectroscopy Analysis  

Kim, Sang-Hyeok (Department of Radiological Science, Jeonju University)
Yu, Seung-Man (Department of Radiological Science, Jeonju University)
Publication Information
Journal of radiological science and technology / v.44, no.4, 2021 , pp. 315-325 More about this Journal
Abstract
The purpose of this study is to investigate the changes in lipid proton (LP) composition according to the induced obese fatty liver and to use it as basic data for treatment and diagnosis of fatty liver in the future. The phantom study was conducted to identify differences between STEAM and PRESS Pulse sequences in LP concentration. A high-fat diet (60%) was administered to eight Sprague-Dawley rats to induce obesity and fatty liver disease. Baseline magnetic resonance imaging /spectroscopy data were obtained prior to the introduction of high-fat diet, and data acquisition experiments were performed after eight weeks using procedures identical to those used for baseline studies. The six lipid proton metabolites were calculated using LCModel software. The correlation between the fat percentage and each LP, revealed that the methylene protons at 1.3 ppm showed the highest positive correlation. The α-methylene protons to carboxyl and diallylic protons showed negative correlation with fat percentage. The methylene proton showed the highest increase in the LP; however, it constituted only 71.86% of the total LP concentration. The methylene proton plays a leading role in fat accumulation in liver parenchyma.
Keywords
Fatty Acid; Fatty Liver; Magnetic Resonance Spectroscopy; Magnetic Resonace Imaging; Lipid Proton;
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