256层螺旋CT在胸部创伤诊断中的应用  

Application of 256-Slice Spiral CT in Diagnosis of Chest Trauma

作　　者：赵鹤亮[1] 项昆[2] 赵新斌[1] 张惠英[1] 

机构地区：[1]河北联合大学附属医院CT室 [2]唐山市协和医院CT/MR室,河北唐山063000

出　　处：《南昌大学学报（医学版）》2015年第2期44-46,共3页Journal of Nanchang University：Medical Sciences

基　　金：2013年唐山市科技局科技指令性计划(13130273z);2012年河北联合大学青年科学基金(z201229)

摘　　要：目的比较256层螺旋CT和64层螺旋CT对胸部创伤患者的诊断价值。方法选取110例胸部创伤患者,均采用两种多层螺旋CT(64层和256层螺旋CT)检查;比较两种检查方法对于骨折、肺损伤、气胸及液气胸的检出率和两种检查方法的射线剂量情况(包括扫描长度、有效剂量、扫描时间)。结果 256层螺旋CT对骨折、肺损伤、气胸及液气胸检出率(95.5%、70.9%、31.8%)均显著高于64层螺旋CT(84.5%、5.5%、20.0%,P<0.05)。与64层螺旋CT比较,256层螺旋CT有效剂量更低[(4.97±1.49)mSv比(6.03±1.26)mSv,P<0.05],扫描时间更短[(5.38±1.52)s比(9.26±1.37)s,P<0.05]。结论 256层螺旋CT诊断胸部创伤临床效果优于64层螺旋CT。Objective To compare the diagnostic values of 256-slice and 64-slice spiral CT in chest trauma.Methods A total of 110 patients with chest trauma received both 256-slice and 64-slice spiral CT examination.The detection rates of fracture,lung injury and pneumothorax/hydro-pneumothorax and radiation conditions(scan length,effective dose and scan time)were compared between the two methods.Results Compared with 64-slice spiral CT,256-slice spiral CT in-creased the detection rates of fracture,lung injury and pneumothorax/hydropneumothorax (95.5% vs 84.5%,70.9% vs 5.5%,and 31.8% vs 20.0%,respectively;P <0.05),decreased the effective dose((4.97±1.49)mSv vs (6.03±1.26)mSv,P <0.05),and shortened the scan time ((5.38±1.52)s vs (9.26±1.37)s,P <0.05).Conclusion The 256-slice spiral CT is superior to 64-slice spiral CT for the diagnosis of chest trauma.

关 键 词：多层螺旋CT 胸部创伤 临床诊断 

分 类 号：R816.4[医药卫生—放射医学]