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. 2020 Jun 22;14:552. doi: 10.3389/fnins.2020.00552

FIGURE 1.

FIGURE 1

(A) Initial evaluation with CT cross-section at injury level (1); the sagittal MRI view of the thoracic spine with the area of SCI; (3) X-ray view of the spine fixation structure; (4) 3D reconstruction of vertebras with areas of laminectomy and spine fixation structure, circles indicate position of the ultrasound sensor in the projection of laminectomy; (5) three transverse MRI sections of the spinal cord at the injury level (T1 weighted lesion); (6) visualization of the spinal cord at injury level with ultrasound technique. (B) Study design with approach of SCI evaluation in human. Assessment of SEMP (I) with the role of injury type (a) and electrode position (b); the influence of supraspinal and afferent information (II) tested with reinforcement maneuvers (a) and positional changes (b); and the role of motor rehabilitation (III). (C) Timeline of the study. (D) An example of somatosensory evoked potentials (SSEP) recorded with stimulation of the n. Tibialis with recording electrodes located at the Cz-Fpz, Th8-9, Th11-12, L2-3, and popliteal region. Average of 800 responses presented for each location. Gray circles indicate the SSEP at the Th11-12, L2-3, and popliteal region. (E) SSEP amplitude at popliteal region, L2-3, and Th11-12 level during stimulation on the right and left n. Tibialis (n = 3).