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FIG 1. Method for locating the level of injury on sagittal MR images. Locations are named for the nearest vertebral segment. Each segment is subdivided into three parts: the upper half of the vertebral body, the lower half of the vertebral body, and the intervertebral disk below the named body. In the example shown, the edema spans two segments between the C4 and C5 intervertebral disk (designated C4.3) to the upper half of C6 (designated C6.1). The hemorrhagic center of the injury spans one segment corresponding to the lower half of the C5 vertebral body (designated C5.2). Reprinted with permission from (12)
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