DR平片上股骨头密度改变与早期股骨头缺血坏死关系的研究  

The Study of the Relationship between the Density Changes of Bone on DR Plain Radiograph and the Early Avascular Necrosis of the Femoral Head

作　　者：张伟[1] 王燕[2] 李石玲[1] 马晓晖[1] 郭智萍[1] 刘杰[1] 宋岩[1] 

机构地区：[1]河北医科大学第三医院放射科,河北石家庄050051 [2]河北医科大学第三医院内分泌科,河北石家庄050051

出　　处：《实用放射学杂志》2010年第7期993-997,1008,共6页Journal of Practical Radiology

基　　金：河北省医学科学研究重点课题（20090446）.

摘　　要：目的 研究骨盆正位DR平片密度改变与早期股骨头缺血坏死的关系.方法 收集2003-06-2006-12来本院就诊的疑诊股骨头缺血坏死的患者,DR拍摄骨盆平片未见明显异常的20～60岁患者3071例.行双髋关节MRI扫描,根据MRI是否具有股骨头缺血坏死征象将其分为正常组和试验组,后利用DR图像后处理工作站对2组分别进行股骨头的密度测定,对照分析其密度改变.结果 本组3071例,其中男2313例,女758例.正 常组男性不同年龄组的股骨头密度值分别为：21～30岁组为1426.38±49.15, 31～40岁组为1414.76±37.69,41～50岁组为1285.84±38.98,51～60岁组为1107.87±44.73;正常女性不同年 龄组的股骨头密度值分别为：21～30岁组为1322.08±57.81, 31～40岁组为1313.69±55.64 , 41～50岁组为1262.22±37.22 ,51～60岁组为935.18±48.54.试验组男性不同年龄的股骨头密度值为21～30岁组为：1215.87±77.68, 31～40岁组为1197.43±86.38,41～50岁组为1134.6±68.13,51～60岁组为 999.91±42.40;女性不同年龄的股骨头密度值分别为：21～30岁组为1200.45±50.08,31～40岁组为1179.68±56.02,41～50岁组为 1137.78±54.59,51～60岁组为826.46±105.80.利用t检验和χ2检验对不同年龄的男女分别进行统计学检验,均得出P＜0.05.结论 在DR骨盆平片上测量股骨头密度值可作为早期股骨头缺血坏死的诊断方法之一.Objective To study the relationship between the density changes of bone on DR and the early avascular necrosis of femoral head. Methods 3071 cases（ranged 20-60 years in age） suspected with the early avascular necrosis from June 2003 to December 2006 in our hospital and whose pelvic DR were no obvious adnormalities underwent MRI examinations. According to whether normal findings on MRI, the patients were divided into the normal group and the control group. The bone density of the femoral head in the two group on DR images were measured. Results In 3071 cases,2313 cases were male and 758 cases were female. The densities of the femoral head in normal group were 1426.38±49.15 in 21 to 30 years old patients,1414.76±37.69 in 31-40 years old, 1285.84±38.98 in 41-50 years old and 1107.87±44.73 in 51-60 years old for men;1322.08±57.81 in 21 to 30 years old ,1313. 69±55.64 in 31-40 years old ,1262.22.1.37.22 in 41~50 years old and 935.18±48.54 in 51-60 years old for women. The densities in control group were 1215.87±77.68 in 21 to 30 years old,1197.43±86.38 in 31--40 years old ,1134.6±68.13 in 41～50 years old and 999.91±42.40 in 51-60 years old for men;1200.45±50.08 in 21 to 30 years old,1179.68±56.02 in 31-40 years old, 1137.78±54.59 in 41 - 50 years old and 826.46 ± 105.80 in 51-60 years old for women. There were significant differences （P〈 0.05 ） using t--test and the 2 test for statistical tests of the densities between different age groups. Conclusion The measurement of density of the femoral head using DR image can be taken as one way in the diagnosis of avascular necrosis early.

关 键 词：数字X线摄影 股骨头缺血坏死 骨密度 

分 类 号：R681.8[医药卫生—骨科学] R814.41[医药卫生—外科学]