CAJ | 학술논문

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。
목적：비교256층라선 CT 화64층라선 CT 대흉부창상환자적진단개치。방법선취110례흉부창상환자，균채용량충다층라선 CT（64층화256층라선 CT）검사；비교량충검사방법대우골절、폐손상、기흉급액기흉적검출솔화량충검사방법적사선제량정황（포괄소묘장도、유효제량、소묘시간）。결과256층라선 CT 대골절、폐손상、기흉급액기흉검출솔（95．5％、70．9％、31．8％）균현저고우64층라선 CT（84．5％、5．5％、20．0％，P ＜0．05）。여64층라선 CT 비교，256층라선 CT 유효제량경저[（4．97±1．49）mSv 비（6．03±1．26）mSv，P ＜0．05]，소묘시간경단[（5．38±1．52）s 비（9．26±1．37）s，P ＜0．05]。결론256층라선 CT 진단흉부창상림상효과우우64층라선CT。
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.