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[Dynamic motion study of the cervical spine using ultra-fast gradient echo with RF-spoiled GRASS--evaluation of cervical instability].

In order to assess the instability of the cervical spine, ten patients with cervical spondylosis were studied by dynamic MRI using Ultra-Fast RF-Spoiled GRASS which is capable of subsecond imaging. Dynamic MRI has proved to be useful in the evaluation of cervical instability, especially in detecting the transient abnormal mobility of cervical spines which cannot be identified on conventional radiography.