Evaluation of paraspinal muscle quality using Hounsfield unit in simple elliptical regions of interest: correlation with magnetic resonance imaging-based intramuscular fat infiltration in spine surgery patients
Study design Retrospective cohort study. Objectives To correlate Hounsfield unit (HU) values, using elliptical regions of interest (ROI), that can be easily defined in routine clinical practice with magnetic resonance imaging (MRI) T2-hyperintense area fraction, as a surrogate for paraspinal muscle fat infiltration and...