1McCarron R F, Marc W, Hudgins P G. The Infoammatory Effect of Nucleus Pulposus: A Possible Element in the Patho-genesis of Low-back Pain[J]. Spine,1987,12:760-764.
2Kirkaldy-Willis W H. The reaction of Structural pathology to the nerver root[J]. Spine, 1984, 9:49-52.
3Boumphery F R S, Bell G R, Modic M, et al. Compute eltom ography scanning after chymopapain injection for herniated nu-cleus pulposus: A prospective study[J]. Clin Orthop, 1987, 219:220-226.
4Yamashita T, Minakiy, Oota I, et al. Mechno sensitve afferent units in the lumbar intervertebral disc and adjacent muscle[J]. Spine, 1993, 18:2252-2258.
5Olmarker K, Rydevik B, Nordborg C. Autologus nucleus pulposus induces neurophysiologic and histologic changes in procine causda equina nerve roots[J]. Spine, 1993, 18:1425.
6McCarron R F, Wimpee M W, Hadkins P G, et al. The inflammatory effect of nuleus pulposus: Apossible element in the pathogenesis of low back pain[J]. Spine, 1987, 12:760.
1Bettman M A, Morris T W. Recent advances in contrast agents[J]. Radiol Clin North Am. 1986,24:347.
2Widmer W R, Blevins W E, Cantwell H D. Cerebrospinal fluid response following metrizamide myelography in normal dogs: Effects of routine myelography and postmyelographic removal of contrast medium[J ]. Vet Clin Pathol 1990,19: 66.
3Dennis R, Herrtage M E. Low osmolar contrast media[J].Vet Radiol. 1989,30:2.
4Grainger R G, Intravascular contrast media the past ,the present and the future[J]. Br J Radiol. 1982,55:1.
5Wood A K. Iohexol and iopamidol: New nonionic contrast media for myelography in dog[J]. Compend Contin Educ Pract Vet. 1988,10:32.
7Spencer C P, Chrlsman C L, Mayhew I G, et al. Neutrotoxicologic effects of the nonionic contrast agents iopamidol on theleptomeninges of the dog[J]. Am J Vet Res. 1982,43 : 1958.
8Pasaoglu A, Gok A, Patiroglu T E. An experimental evaluation of response to contrast media pantopaque, iopamidol, and iohexol in the subarachnoid space. Invest [J]. Radiol. 1988,23:762.
9Orrison W W, Sackettt J F, Amundsen P. Lateral C1-2 puncture for cervical myclography, Part Ⅱ :Recognition of improper injection of contrast material[J]. Radiology. 1983,146:395-400.
10Penderis J, Sullivan M, Schwarz T, et al. Subdural injection of contrast medium as a complication of myelogrpahy[J]. J Small Anim Pract. 1999,40:173-176.