Objective To investigate the correlation between MRI signal intensity and resorption in lumbar disc herniation(LDH).Methods A retrospective study was conducted on 66 patients with LDH who received non-surgical treatment between Febru-ary 2016 and March 2020,and followed up for more than one year.There were 27 cases in the resorption group and 39 cases in the non-resorption group.The course of disease,Iwabuchi type,MSU type,horsetail sedimentation sign Schizas classification and MRI signal intensity were recorded.T test and logistic regression analysis were used to explore whether MRI signal intensity was an inde-pendent factor affecting resorption.The degree of resorption(disappearance,obvious resorption,partial resorption)in the resorption group was measured and calculated,and the correlation between the degree of resorption and MRI signal intensity was discussed.Re-sults After more than one year of follow-up,the clinical symptoms of 27 patients with resorption were significantly improved,and of the 39 patients without resorption,11 patients underwent surgery.There was a statistically significant difference in MRI signal intensity between the resorption group and the non-resorption group(32.45±12.43)%and(15.93±7.66)%(P<0.05).Data analysis showed that patients with course of disease less than one year,Iwabuchi type 1 or 5,MSU type 3,horsetail sedimentation sign Schizas classification type A or B,and high MRI signal intensity were prone to resorption(P<0.05).There was a significant positive correla-tion between the degree of resorption and MRI signal intensity(r=0.572,P<0.05).Conclusion MRI signal intensity is an inde-pendent factor that affects the occurrence of resorption of LDH and is related to the degree of resorption.It is a clinical index to evaluate the probability of resorption of LDH.
关键词
腰椎间盘突出症/突出组织信号强度/重吸收/相关性
Key words
lumbar disc herniation/MRI signal intensity/resorption/correlation