DR 双能量减影技术在气胸诊断中的应用价值

摘要

Objective To explore the value of DR dual energy subtraction technology in the diagnosis of pneumothorax. Methods 46 cases of pneumothorax examined by dual energy subtraction technology in our hospital during Mar 2015 to May 2016 were selected and got three images respectively as regular DR image, soft tissue image and bone tissue image at the same time. Compared the detection rate of pneumothorax and lung bullae which was the potential causes of pneumothorax by dual en-ergy subtraction technology and conventional DR. Results The detection rate of middle and large amount of pneumothorax by dual energy subtraction technology were the same as conventional DR. The detection rate of little amount of pneumothorax and lung bullae by dual energy subtraction technology were higher than conventional DR[90.0% vs 60.0%,81.3% vs 37.5%],the dif-ference was statistically significant (P<0.05). Conclusion The detection rates of dual energy subtraction technology in pneu-mothorax and lung bullae are higher than conventional DR, it can reduce missed diagnosis, and it is worthy of popularization and application in the clinic.%目的：探讨 DR 双能量减影技术在气胸诊断中的应用价值。方法选择我院2015年3月~2016年5月经双能量减影技术检查的气胸患者46例，所有患者一次检查同时得到3幅图像，分别为常规 DR 片、骨组织图像、软组织图像，比较双能量减影技术与常规 DR 对气胸的检出率，同时观察双能量减影技术与常规 DR 对气胸的潜在病因肺大泡的检出率。结果双能量减影技术对中、大量气胸检出率与常规 DR 相同；对少量气胸的检出率双能量减影技术高于常规 DR，检出率分别为90.0%（18/20）、60.0%（12/20）；两者肺大泡检出率分别为81.3%（13/16）、37.5%（6/16），双能量减影技术肺大泡检出率高于常规 DR，差异均有统计学意义（P<0.05）。结论双能量减影技术对气胸及肺大泡的检出率高于常规 DR，可降低漏诊率，值得在临床工作中推广应用。