Fast adipose tissue (FAT) assessment by MRI |
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Authors: | Gronemeyer S A Steen R G Kauffman W M Reddick W E Glass J O |
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Institution: | Department of Diagnostic Imaging, St. Jude's Children's Research Hospital, Memphis, TN, USA. suzanne.gronemeyer@stjude.org |
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Abstract: | We report a method of fast adipose tissue (FAT) assessment to characterize the quantity, and distribution of abdominal adipose tissue. Whole-volume coverage of the abdomen was obtained using 31 contiguous transverse T(1)-weighted images from 16 obese females. A radiologist manually traced all adipose tissue volumes in the images, while a physiologist used an automated method to measure adipose tissue in a single image at the level of the umbilicus. Automated analysis of the umbilicus-level image was significantly correlated with values obtained by manual analysis of the entire abdomen (p < 0. 001). There was good agreement between the automated umbilicus-level image method and the manual whole abdomen method for subcutaneous adipose tissue (r(2) = 0.958), visceral adipose tissue (r(2) = 0. 753), and total adipose tissue (r(2) = 0.941). The automated method required 6 min vs 2 h for the manual method. |
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