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  • Title: [The study on relativity of the time of traumatic diskal hernia and the change of CT rate].
    Author: Yang Y, Liu DH.
    Journal: Fa Yi Xue Za Zhi; 2006 Aug 15; 22(4):268-70. PubMed ID: 17080664.
    Abstract:
    OBJECTIVE: To find out the relativity between the time when the traumatic prolapse of intervertebral disc occurred and the change of the CT numerical value. METHODS: The CT numerical value of the vertebral pulp of herniation (denoted as A) and the CT numerical value of the vertebral pulp without herniation (denoted as B) were measured in for 198 patients and analyzed the relation between this parameter and the time when the prolapse of intervertebral disc occurred. RESULTS: It's found find out that there is relativity between the parameter and the time when the prolapse of intervertebral disc occurred, and this difference has the value for the statistics, when the parameter is at about -12 to -40 HU, the average value is -25.8 HU (A < B), it can be determined the prolapse of intervertebral disc occurred within 3 months ago. When the parameter is at about -13 to 0 HU, the average value is -6.6HU (A is similar with B), it can be determined the prolapse of intervertebral disc occurred at about 4-6 months ago. When the parameter is at about 37 to 289HU, the average value is 96.1 HU (A > B). It can be determined the prolapse of intervertebral disc occurred more than 12 months ago. CONCLUSION: The approximate time can be determined when the prolapse of interverterbral disc occurred by the paremeter.
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