Effect of conventional gadolinium contrast agents on IDEAL based hepatic fat-fraction measurements

22 patients were imaged using a chemical-shift encoded water-fat MRI sequence (IDEAL-IQ) on 1.5T with a low flip angle (8 degrees), before and after administration of a conventional gadolinium-based contrast agent. Hepatic fat fraction (HFF) was measured by drawing 5 ROIs per liver on pre-gadolinium images, which were copied to matching locations of the post-gadolinium images. Results: HFF values were not significantly influenced by administration of gadolinium. This allows for examination time reduction by performing the HFF acquisition in the interval between dynamic and delayed phase imaging post-gadolinium.

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