CAJ | 학술논문

目的：通过对比 CT 的肺容量测算结果与常规肺功能检查结果之间的相关性,评估 CT 测量肺容量法的可靠性和临床意义。方法选取首都医科大学附属北京儿童医院胸外科入院治疗的共计49例漏斗胸患者,术前行肺功能检查和 CT 检查。应用手绘-分层测量求和法测量患者肺容量并计算其与预计值之间比例。将结果与患者常规肺功能结果进行对比。结果基于CT 肺容量结果平均值低于肺功能检查结果,但与常规肺功能结果的相关性具有统计学意义：最大肺活量(maximal ventilatory capacity, VCmax)(P<0.001)、用力肺活量(forced vital capacity,FVC)(P<0.001)、肺总量(total lung capacity,TLC)(P<0.001)；基于 CT 的肺容量实测值/预计值比例与肺功能结果相关性均有统计学意义： VCmax%(P<0.001)、FVC%(P<0.001)、TLC%(P<0.001)。结论 CT 测算的肺容积结果与常规肺功能结果高度相关,CT 肺容积测算法可作为临床评估漏斗胸患者肺脏容积的一种有效方法。
목적：통과대비 CT 적폐용량측산결과여상규폐공능검사결과지간적상관성,평고 CT 측량폐용량법적가고성화림상의의。방법선취수도의과대학부속북경인동의원흉외과입원치료적공계49례루두흉환자,술전행폐공능검사화 CT 검사。응용수회-분층측량구화법측량환자폐용량병계산기여예계치지간비례。장결과여환자상규폐공능결과진행대비。결과기우CT 폐용량결과평균치저우폐공능검사결과,단여상규폐공능결과적상관성구유통계학의의：최대폐활량(maximal ventilatory capacity, VCmax)(P<0.001)、용력폐활량(forced vital capacity,FVC)(P<0.001)、폐총량(total lung capacity,TLC)(P<0.001)；기우 CT 적폐용량실측치/예계치비례여폐공능결과상관성균유통계학의의： VCmax%(P<0.001)、FVC%(P<0.001)、TLC%(P<0.001)。결론 CT 측산적폐용적결과여상규폐공능결과고도상관,CT 폐용적측산법가작위림상평고루두흉환자폐장용적적일충유효방법。
Objective To access the reliability of CT-based pulmonary volumetric evaluation by analyzing the correlation between lung volume calculated by CT-based pulmonary volumetric evaluation method and pulmonary function test(PFT) results. Methods This study enrolled 49 patients with pectus excavatum seen in Beijing Children' s Hospital. All patients had CT scan and pulmonary function test data. The CT-scan data were used to calculate lung's volume by handdrawn-layers summation method. The lung volume and PFT result were compared. Results The lung volume calculated by CT-based pulmonary volumetric evaluation underestimated from the PFT result of VCmax, FVC and TLC. However, the correlation between lung's volume and PFT result of VCmax(P<0. 001), FVC(P<0. 001), TLC (P < 0. 001) was significant. The correlation between value of actuality/ anticipated between lung volume and PFT results was also significant. Conclusion The lung volume calculated by CT-based pulmonary volumetric evaluation is significantly correlated with PFT results and this method is a useful way to evaluate the lung volume in clinical practice.