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MR Imaging for Assessing Acute Vertebral Trauma.

Magnetic resonance imaging (MRI) has revolutionized the imaging assessment of patients sustaining acute vertebral injury and is indicated for all hemodynamically stable patients with acute neurologic deficits related to spinal column injury, particularly in the cervical region. MRI defines the presence and extent of lesions involving osseous structures, ligaments and other soft tissues, and the spinal cord parenchyma. Information obtained from MRI is useful in assessing the indication for and best approach to surgical management of vertebral injury by revealing herniated disc material, epidural hematoma, significant osteophytes, and level(s) of probable or potential spinal column instability. The appearance of spinal cord lesions by MRI provides prognostic information regarding likely extent of recovery of neurologic function. Magnetic resonance angiography (MRA) can reliably demonstrate vertebral artery injuries not uncommonly associated with cervical spine subluxation/dislocation and fractures crossing the foramen transversarium. Improvements in speed of MR image acquisition and patient physiological support and monitoring compatibility in the MR-environment is making MRI more available and safe for use in the setting of acute major trauma.