低剂量螺旋CT活动性肺结核扫描与常规剂量CT的对照分析

Low Dose Helical CT Scans with Active Tuberculosis Regular Doses of CT Contrast Analysis

目的:探讨低剂量螺旋CT扫描在活动性肺结核诊断中应用价值。材料与方法:分析新发活动性肺结核与复发活动性肺结核各50例,分别观察低剂量CT扫描与常规剂量CT扫描肺结核病灶的检出率。结果:50例新发与复发活动性肺结核在低能量与常规能量扫描中的检出率中,小叶中心结节、磨玻璃影、树芽征、空洞征在新发与复发病例中检出率无明显的差异性(P>0.05).气道壁增厚、小叶样实变、亚段以上实变、纤维条索影、支气管扩张、钙化、肺气肿在新发与复发病例中检出率完全一致。结论:低能量螺旋CT肺部扫描,接受X射线剂量为常规扫描1/6～1/4,但能基本满足临床诊断需要.

Purpose： to study the low dose helical CT scan in active tuberculosis diagnosis of application value.Materials and Methods： analysis new hair active tuberculosis and recurrence active tuberculosis each respectively 50 cases,respectively observed low-dose CT with regular doses scan tuberculosis lesion of the detection rate.Results： 50 cases new hair active tuberculosis and recurrence active tuberculosis in low dose with regular doses scan of the detection rate,lobular center of nodules、ground glass shadow 、tree buds levy、empty hole levy in new hair with recurrence cases without obvious otherness detection rate（P 0.05）.Airway wall thickening、small leaves sample realvariable、second section above realvariable、fiber shadow、bronchiectasis、calcification、emphysema in new hair rate with recurrent rate in complete agreement.Conclusion： low energy spiral CT lung scans,accept X-ray dose for conventional scanning 1 /6 ～ 1 /4,but can basically met clinical diagnosis needs.