Abstract #3002

Test-Retest Reproducibility of Whole-Body Fat Water Imaging at 3 Tesla Compared to DEXA

Edward Brian Welch^1,2, Malcolm J. Avison^1,2, Kevin D. Niswender³, Johan Berglund⁴, Joel Kullberg⁴, Lars Johansson⁴, Morten Bruvold⁵, Heidi J. Silver³

¹Vanderbilt University Institute of Imaging Science, Vanderbilt University, Nashville, TN, United States; ²Department of Radiology & Radiological Sciences, Vanderbilt University, Nashville, TN, United States; ³School of Medicine, Vanderbilt University, Nashville, TN, United States; ⁴Department of Radiology, Uppsala University, Uppsala, Sweden; ⁵MR Clinical Science, Philips Healthcare, Best, Netherlands

Whole-body MRI has great potential for quantifying the amount, type and distribution of adipose tissue to help better understand its metabolic consequences. Multi-gradient-echo MR acquisitions have been successfully used to quickly acquire whole-body fat-water imaging data sets. Dual energy x-ray absorptiometry (DEXA) is widely used in studies of body composition, but few direct comparisons of the performance of fat-water MR imaging (FWMRI) to DEXA are available, especially for 3T FWMRI. Here we present test-retest results of scanning 12 obese female subjects using a 3T mFFE whole-body FWMRI sequence as well as DEXA.