Quantification of liver and muscular fat using contrast-enhanced Dual Source Dual Energy Computed Tomography compared to an established multi-echo Dixon MRI sequence
نویسندگان
چکیده
Purpose To investigate the feasibility of liver fat quantification in contrast-enhanced dual source energy computed tomography (DECT) using multi-echo Dixon magnetic resonance imaging (MRI) as reference standard. Method Patients who underwent MRI including a sequence for estimation proton density fraction 2017 well DECT abdomen were included this retrospective, monocentric IRB approved study. Furthermore, patients with hepatic amount >5% examined 2018 and included. The final study group consisted 81 90 pairs examinations. Analysis parameter maps was performed manually congruent regions interest which placed parenchyma, erector spinae muscles, psoas major muscles. Results Mean patient age 61 ± 13 years. Median time between 48 days. resulted median 3.8% (IQR: 2.2–8.2%) compared to 1.8% 0–6.3%) (p < 0.001), Spearman correlation 0.73. Bland-Altman analysis systematic underestimation DECT, mean difference ?1.7%. Fat muscles = 0.257) 0.208) not significantly different MRI. Conclusions Liver muscular portal-venous phase is feasible good excellent analysis. While there an content are no significant differences
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ژورنال
عنوان ژورنال: European Journal of Radiology
سال: 2021
ISSN: ['0720-048X', '1872-7727']
DOI: https://doi.org/10.1016/j.ejrad.2021.109845