Clinical Study On Comparation Between CT And MRI Images Of Lumbar Disc Herniation

Objective: To study clinical characteristics of different types of lumbar disc herniation and the value of CT and MRI in the diagnosis and identify in different types of lumbar disc herniationMethods: From January 1, 2005 to December 31, 2009 in the First Affiliated Hospital of Fujian Medical University, 40 patients with low back pain and bone surgery underwent CT and MRI exmination, whom were confirmed by surgery as lumbar intervertebral disc hernia, with 17 cases ruptured and 23 cases of non-ruptured. And 16 males (40 %) and 24 females (60 %); the age form 31 to 80 years, (50.6±6.6) years. the longest course was 35 years, and shortest in 2 months. By comparing the results of CT and MRI diagnosis, combine clinical symptoms and signs, to study clinical characteristics of different types of lumbar disc herniation and the value of CT and MRI in the diagnosis and identify in different types of lumbar disc herniationResults: The JOA score of LDH was (11.32±2.11)points, wheres RLDH (18.22±3.77)points , there is a significant difference (P<0.01) . 40 patients with 42 lesions, CT detected 37 lesions, the detection rate of 88.09%,MRI detected 38 lesions, the detection rate of 90.47%. No statistically was between the difference significance. For different types of lumbar disc herniation, CT display as the ruptured edge blur, ectopic nucleus, after huge margin prominent and acute signs were significantly higher than the non-ruptured, disc prolapse rate of 50%, non-broken type of occurrence was 8.6%, while the rupture was 47.06%. Between the two groups was statistically significant difference. MRI shows in ectopic nucleus and the ruptured disc prolapse with low signal around the high incidence there.Conclusion: RLDH has more obvious symptoms and signs than LDH, CT and MRI both have high diagnostic accuracy in the diagnosis of LDH, the combination of CT and MRI examination show a significant value in indentify LDH and RLDH.