The objective of this study was to investigate the values of precise fat-suppression for the robust visualization of 3D high-resolution contrast-enhanced MR neurography of lumbosacral plexus by inversion time (TI) scout technique. The precise TI of individuals could be calculated from several fast different TI experiments by measuring the fat signals recovery on the real and imaginary images. CNR (precise fat-suppression) (13.26±5.47) was about 425.4% higher than CNR (traditional TI) (2.39±0.55). Accurate fat suppression in MRN of lumbosacral plexus can help visual the branch of lumbosacral plexus nerves distinctly and improve the accuracy of diagnosis in diseases of lumbosacral plexus.
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