Abstract: ［Abstract］〓Objective〖HTSS〗〓To investigate the relationship of increased signal intensity(ISI) and the clinical symptoms and prognosis in patients with cervical spine cord injury without radiographic abnormality(CSCIWORA).
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓A total of 106 cases of CSCIWORA patients with ISI were enrolled in the study. Based on the prognosis of ISI at 1 year after operation, they were divided into 3 groups. Group A(20 cases): the ISI was not significantly reduced. Group B(38 cases): the ISI significantly weakened. Group C(48 cases): the ISI disappeared completely. The neurological function recovery based on Japanese Orthopedic Association（JOA） score was evaluated and compared.
〖HTH〗〖WTHZ〗Results〖HTSS〗〓The postoperative JOA scores at all patients had significantly increased when compared with the preoperative level(P＜005), and the JOA scores of group C were higher than those of group A and group B(P＜005).The neurological function improvement rate in group B was higher than that in group A, while group C was higher than that in group A and group B(P＜005).
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗〓CSCIWORA patients usually accompanied with ISI. Once surgery is given, a better prognosis will get if ISI disappeared and a poor prognosis will obtain if ISI existence.

Key words: spinal cord injuries, magnetic resonance imaging, prognosis