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目的:分析多层螺旋CT检测慢性阻塞性肺疾病患者肺容积指数的准确性,探讨多层螺旋CT的诊断价值,为慢性阻塞性肺病的临床诊断提供可借鉴的方法。方法:选取2010年10月-2012年8月我院收治的慢性阻塞性肺疾病患者98例为观察组,另选取同期接受体检的健康志愿者70例为对照组。采用多层螺旋CT测定两组不同肺区的肺容积指标并与临床PFT指标进行相关性分析。结果:对照组与观察组的肺功能指标存在显著差异(P<0.05);观察组患者在不同肺区测定的Vin及上肺区Vin-Vex值无统计学意义(P>0.05);最大呼气末容积(Vex)、容积比(Vex/Vin)和肺容积变化比率[(Vin-Vex)/Vin]均呈显著差异,具有统计学意义(P<0.05);肺容积差(Vin-Vex)与各项PFT指标无相关性(P>0.05)。结论:64层螺旋CT肺容积成像对诊断COPD有预测意义,值得临床上进一步研究和推广。
OBJECTIVE: To analyze the accuracy of multi-slice spiral CT in detecting pulmonary volume index in patients with chronic obstructive pulmonary disease and to explore the value of multi-slice spiral CT in diagnosis of chronic obstructive pulmonary disease. Methods: A total of 98 chronic obstructive pulmonary disease patients admitted to our hospital from October 2010 to August 2012 were selected as the observation group. Another 70 healthy volunteers were selected as the control group during the same period. Multi-slice spiral CT was used to measure lung volume index in two different lung regions and to analyze the correlation with clinical PFT index. Results: There were significant differences in lung function between the control group and the observation group (P <0.05). There was no significant difference in Vin and Vein-Vex values between the observation group and the observation group (P> 0.05) Vex, Vex / Vin and Vin-Vex / Vin were significantly different (P <0.05). The difference of volume of lung volume (Vin-Vex ) Had no correlation with PFT (P> 0.05). Conclusions: 64-slice spiral CT pulmonary volume imaging has a predictive value in the diagnosis of COPD and deserves further study and promotion in clinic.