摘要
目的:研究在图像存贮及传输系统(picturearchivingandcommunicationsystem,PACS)工作站上进行Cobb角测量的可靠性。方法:由A、B两位医师分别采用传统的标尺和角度测量仪在30例特发性脊柱侧凸患者脊柱X线胶片上测量Cobb角(简称传统法),同时在PACS工作站上行Cobb角测量(简称PACS法),间隔3周后,采用同样方法重复测量一次。另外在一定条件下(确定测量的主弯及上、下端椎),由8位医师对同一患者进行重复测量。测量的结果均进行配对t检验。结果:应用传统法和PACS法测量的最小差值分别是1°和0,最大差值分别是24°和20°,平均为(6.73±4.56)°和(5.70±3.83)°。同一观测者采用传统法或PACS法重复测量时结果均存在统计学差异(P<0.05)。同一测量方法不同观测者间比较亦存在统计学差异(P<0.05)。在设定条件下,对同一患者测量,传统法和PACS法均无统计学差异(P>0.05)。结论:与传统法一样,PACS法重复测量结果的可信度受诸多因素影响,但测量过程更简单,误差减小,在一定条件下重复测量可无统计学差异,PACS法仍值得临床应用。
Objective：To investigate the reliability in Cobb angle measurement on PACS workstation. Method：30 cases with idiopathic： scoliosis were measured by A and B observers with the traditional Cobb technique （TTT） using the surveyor＇s staff and protractor.and with the computer assisted methods （TCM） on PACS workstation.The interval between two measurements was three weeks.On the condition of being enacted, one patient was measured by eight attending physicians.The data were analyzed statistically with the paired- sample T-test,Result：Concerning the variance from an observer in two measurements,the minimum variance, the maximum variance and the average variance were 1°,24°,（6.73±4.56）° for TTT and 0°,20°, （5,70±3.83）° for TCM.There was significant measurement differences for one observer with TTT or TCM repeating measure- ment （P〈0.05）.Tbere were significant measurement differences between A and B for every methods （P〈0.05）. There was no significant measurement differences on the condition of being enacted for two methods（P〉0,05）. Conclusion：TCM is worth implementing clinically because it is without significant difference on some condition,and easier,and less error than TTT.
出处
《中国脊柱脊髓杂志》
CAS
CSCD
2006年第10期732-734,共3页
Chinese Journal of Spine and Spinal Cord
