双能量减影骨组织像与DR常规像在肋骨骨折诊断中的对比观察

目的:探讨双能量减影骨组织像与DR常规像在肋骨骨折诊断中的应用价值。方法:对48名共计192根临床疑诊肋骨骨折的患者,采用双能量减影法摄胸部正斜位片,获得DR常规像和骨组织像,两组医师分别作出诊断,比较DR常规像、骨组织像诊断的结果。结果:DR常规像、骨组织像对肋骨凹陷状骨折的检出率分别为26.92%、23.08%;对裂隙状骨折的检出率分别为11.11%、66.67%;对错位状骨折的检出率均为100%。DR常规像诊断肋骨骨折的敏感性76.72%,特异性100%,阳性预测值100%,阴性预测值73.79%,准确性85.94%;骨组织像则分别80.17%、97.37%、97.89%、76.29%和86.98%,两组的敏感性和准确性无显著差异(P>0.05)。结论:双能量减影骨组织像有利于细小裂隙状骨折的显示;DR常规像观察凹陷状骨折与骨组织像效果相同或更好,两者对肋骨骨折的诊断能力相当。

The comparative study of dual energy substraction and regular digital radiography in diagnosing rib fracture

Objective:To explore the clinically applied value of regular DR image and bone image of dual-energy substraction in diagnosing rib fracture.Methods:DR dual-energy substraction technique was used to examine 48 patients with 192 ribs clinically suspected fracture,taking chest pictures in both fronted and oblique view,diagnostic rate of rib fracture was compared between regular DR image and bone image.Results:There were 116 site of rib fracture in patients,the diagnostic rate using regular DR image,bone image ...