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. 2021 Sep 22;32(3):2012–2022. doi: 10.1007/s00330-021-08233-w

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© The Author(s) 2021, corrected publication 2022

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Fig. 2 — Calculation of the cross-sectional area (CSA) from a 3D magnetization-prepared rapid acquisition gradient-echo (MPRAGE) sequence (a) covering the upper portion of the cervical cord. (b) An atlas template image is registered to the subjects’ MPRAGE image. (c) Extraction of the mean area along the segmented spine