Fig 1.
Prescription of the imaging volume between T11-L1 vertebral level to ensure coverage of the lumbosacral enlargement (LSE).
Red arrow shows the position of the widest section of the LSE within the volume in this particular case.
Fig 2.
A) Cord cross-sectional area (CSA) contour identified using the active surface model tool (ASM) B) GM area contour identified using manual segmentation. C) CSA and GM area contours are shown overlaid onto the MTR-map following linear co-registration.
Fig 3.
Stacked plot diagram showing grey matter (GM) and white matter (WM) mean area fractions measured in a 15 mm section through the lumbosacral enlargement (LSE) in 10 healthy subjects.
Table 1.
Cross-sectional area (CSA) and magnetisation transfer ratio (MTR) measurements in the lumbosacral enlargement (LSE) of 10 healthy subjects.