健康成人舟月关节间隙的磁共振测量

目的 探讨健康成人舟月关节间隙的磁共振测量值及其意义.方法 63例健康成人,均为右利手,男38例,女25例,右腕41侧,左腕22侧.年龄19～62岁,平均31.1岁.采用GE1.5T MR扫描仪,行冠状面PDWI、T2*WI扫描和横断面PDWI扫描,分别测量不同序列上舟月关节间隙的数值.分析不同性别、年龄、序列及左右手之间舟月关节测量值之间的差异.结果 健康成人舟月关节间隙的平均测量值:冠状面关节间隙宽度(2.5852±0.3970)mm,x-±s,下同],关节长度(5.5635±0.8936)mm;横断面关节间隙宽度(2.8794±0.4789)mm,关节长度(10.5683±2.1983)mm.且关节间隙宽度的测量值在不同性别、年龄、序列及左右手之间的差异无统计学意义.结论 MRI能够准确测量健康成人舟月关节间隙,为临床提供可靠的正常参考值数据.

MRI measurements of normal adult scapholunate joint

Objective To explore the measurements of seapholunate joint in normal adults with MRI and its clinical significance.Methods Sixty-three normal adults,38 men and 25 women,were involved in the study.They were all right hand dominant.Their ages ranged from 19 to 62 years.with all average of 31.1 years.Forty-one right wrists and 22 left wrists were scanned with GE 1.5T Signa Horizon MR scanner.Coronal T1WI.PDWI,T2*WI and axial PDWI were acquired.The scapholunate joint spaces were measured on all sequences.The measured values of the normal adult scapholunate ioints was statistically analyzed to look at the differences in different gender,different age groups,different sequences and right/left hands.Results The average measurement of the normal adult scapholunate joint space:on coronal plane,the width was(2.5852±0.3970)mm and the length was(5.5635±0.8936)mm;on axial plane,the width was(2.8794±0.4789)mm and the length was(10.5683±2.1983)mm.There were no statistically significant differences of the measurements between different genders,different age groups,different sequences and right/left hands of the scapholunate joint space.Conclusion MRI can provide accurate measurements of the normal adult scaphohmate ioint spaces and hence normal reference values for clinical practice.