动态DR多角度扫描技术在膝关节负重位检查中的临床应用价值  

The value of dynamic DR multi-angle scanning in the examination of knee joints under weight-bearing position

作　　者：温华昌 钟德江 柯家兴 杨巧颖 赵加春 刘兴林 唐锡章 WEN Hua-chang;ZHONG De-jiang;KE Jia-xing(Department of Radiology,Chuxiong People's Hospital,yunnan 675000,China)

机构地区：[1]楚雄州人民医院放射科,云南675000 [2]深圳市安健科技股份有限公司,广东518057

出　　处：《放射学实践》2021年第9期1148-1151,共4页Radiologic Practice

摘　　要：目的:探讨动态DR多角度扫描技术在膝关节负重位检查中的临床应用价值。方法:搜集行膝关节负重位下动态DR多角度扫描的105例患者,105例患者均常规摄膝关节正侧位DR片。由2位副主任医师、1位主治医师、2位主管技师及1位工程师共同阅片,对图像进行评价。结果:105例患者的检查图像均能满足临床诊断要求。与常规DR片相比,负重位动态DR多角度扫描可获得三维影像,骨性关节面下囊性改变较常规DR片多显示5例,关节间隙变窄多显示32例,骨性关节面改变多显示28例,两者均显示正常14例。29.5%病例的动态DR多角度扫描检出了常规DR未能检出的病灶,57.1%病例的多角度动态DR扫描显示的病损情况较常规DR严重,能更真实地反映关节病情变化,常规DR与负重位多角度动态DR对病变的显示情况差异有统计学意义(P<0.05)。结论:负重位动态多角度扫描技术将DR图像由二维扩展到三维,明显提高了病变检出率,能更真实反映关节病损情况,特别是关节骨性关节面与间隙改变及关节面下小囊状病损情况,有较好的临床应用前景。Objective:To explore the value of dynamic DR multi-angle scanning technique in the examination of knee joints under weight-bearing position.Methods:A total of 105 patients who underwent dynamic DR multi-angle scanning in the knee joints under weight-bearing position were collected,and all the 105 patients received conventional AP and LAT knee joint DR films.The images were reviewed and evaluated by two associate chief physicians,one attending physician,two technicians in charge and one engineer.Results:The images of 105 cases all met the diagnostic requirements.Compared with conventional DR films,dynamic DR multi-angle scanning under weight-bearing position could obtain three-dimensional images;mean while,5 more cases with cystic changes under the osseous articular surface,32 more cases with joint space narrowing,and 28 more cases with osteoarticular surface changes were shown on dynamic DR multi-angle scanning.Besides,14 cases showed to be normal on both conventional DR films and multi-angle scanning.Dynamic DR multi-angle scanning detected lesions that could not be detected by conventional DR in 29.5%of cases,and showed more severe lesions than conventional DR in 57.1%of cases,which indicated that the dynamic DR multi-scanning could more truly reflect the changes of joint condition.The difference of lesion display between conventional DR and dynamic DR multi-angle scanning under weight-bearing position was statistically significant(P<0.05).Conclusion:The dynamic DR multi-angle scanning technique under weight-bearing position expands the DR image from two-dimensional to three-dimensional,and improves the detection rate of the lesions.It can more truly reflect the condition of joint damage,especially the changes of osteoarticular surface and joint space and the small cystic lesions under the osseous articular surface,presenting better clinical application prospects.

关 键 词：数字化X射线摄影 多角度扫描 膝关节 负重位摄影 三维影像 

分 类 号：R684[医药卫生—骨科学] R814.41[医药卫生—外科学]