双能量减影骨组织图像在肋骨骨折诊断上的作用分析  

Evaluation of Applying Bone Image of Dual-energy Subtraction in Diagnosing Rib Fracture

作　　者：刘晓虹[1] 杨秀军[1] 高璐 赵妙嘉 程芙蓉[1] 叶江[1] 

机构地区：[1]上海市第八人民医院放射科,上海200235 [2]上海第一医科大学,上海200032

出　　处：《放射学实践》2007年第8期872-874,共3页Radiologic Practice

摘　　要：目的：探讨双能量减影骨组织图像在肋骨骨折检查中的应用和诊断价值。方法：搜集171例临床怀疑肋骨骨折的病例,男97例,女74例,年龄7～89岁,平均41岁。运用美国GE公司生产的Revolution XR/d型数字X线成像设备（DR）,采用双能量减影法摄正、斜位胸片。结果：在本组病例中,皱折状骨折在骨组织减影图像上的检出率达73.3%,高于常规DR图像的检出率60.0%,而裂隙状骨折及不全性骨折在骨组织减影图像上的检出率低于常规DR图像,完全性骨折在骨组织减影图像和常规DR图像上的检出率相同,骨组织减影图像与常规DR图像两者间总的检出率无显著性差异（P〉0.05）;骨组织减影图像正位的检出率为24.1%,斜位的检出率为44.8%,常规DR图像正位的检出率为29.3%,斜位的检出率为48.3%。结论：双能量减影骨组织图像对不同形态骨折的显示程度不同,可提高细小肋骨骨折的检出。摄片体位影响骨折的检出,无论是骨组织减影图像还是常规DR图像斜位较正位更容易显示骨折。Objective：Conducting an analysis and evaluating the application of bone image of dual-energy subtraction in diagnosing rib fracture. Methods： Collecting sample data based on 171 clinic cases of suspected rib fracture patients, 97 male,74 female,age between 7～89 years old,with an average 41 years old. Equipped with American GE Revolution XR/d type digital radiography image unit （DR）, using the technique of bone image of dual-energy subtraction to exam and to take chest pictures of patients in both frontal and oblique view. Results：The image indication rates for diagnosis are listed below for the cases studied. Greenstick fracture could be diagnosed using dual-energy subtraction at rate of 73.3% ,which is higher than the rate of 60% using regular DR image. However,the diagnostic indication rate of intraosseousd fracture and imcom plete fracture using dual-energy subtraction is lower than using regular DR. Furthermore, for complete fracture diagnosis, the indication rate is same using both methods,there is no significant difference （P〉0.05）. The diagnostic rate in bone image of dual-energy subtraction is 24.1% under frontal view,44.8 % under oblique view,while the diagnostic rate in regular DR image is 29.3 % under frontal view,48.3% under oblique view. Conclusion：Due to various bone shape and fracture natures, the fractured bone image is indicated differently by using the method of bone image of dual-energy subtraction in diagnosis. The method can improve the effectiveness in diagnosis of fine bone fracture of rib. The posture of the body during examination and picture taken is critical. It is far more effective to adopt oblique view than frontal view in order to improve the diagnostic rate no matter whether it＇s using bone image of dual-energy subtraction or regular DR image.

关 键 词：肋骨骨折 放射摄影术 双能量减影 

分 类 号：R816.8[医药卫生—放射医学]