晶状体损伤的CT改变在眼部外伤中的诊断价值

目的研究晶状体损伤的CT表现及其诊断价值。方法正常眼组80例,外伤眼组45例。用德国西门子64层螺旋CT机对眶部进行容积扫描并对晶状体进行横断位及冠状位、矢状位重建,观察其大小、形态、密度,准确测量其CT值。结果晶状体损伤后CT值降低,与正常组晶状体CT值比较有显著性差异(P<0.01),部分晶状体形态消失。结论晶状体损伤有其典型的CT表现,即CT值降低,据此可作出可靠的诊断,诊断符合率达94.1%,并可根据CT值降低的程度作定量分析以说明晶体损伤的程度。

Objective To study the CT manifestations of lens injury and its value of diagnosis.Methods 80 cases of normal group,45cases of traumatic group.With Germany Siemens 64-slice CT machine,orbit department of lens were scanned in volume and lens were proceeded in the restruction of Transverse section.Coronal section and Median sagittal section,observing its size,shape and density,measuring its CT value accurately.Results Aafter injury of lens,the CT value has decreased and significant difference（P0.01）appeared compared with CT value of nomal group,part of lens forms vanished.Conclusion Lens injury has its typical manifestations,namely,CT value is reduced,accordingly we can make a reliable diagnosis whose accuracy comes to 94.1%.quantitative analysis is made to illustrate the extent of damage according to the degree of reduction of CT value.