体描法与单次呼吸法测定慢阻肺患者功能残气量的比较

Comparison of Body Scanning Method and Single Breath Method in Measuring Functional Residual Capacity in Patients with COPD

目的使用体描法与单次呼吸法对慢性阻塞性肺病(COPD)患者的功能残气量(FRC)及相关参数RV、TLC值进行比较分析,为临床应用提供客观依据。方法选取该院呼吸内科2018年12月—2019年5月住院期间经过肺功能检查诊断为慢性阻塞性肺病患者40例,分别用体描法及单次呼吸法测FRC及RV、TLC值,并比较其差异。结果体描法所测FRC为(5.05±1.49)L,与单次呼吸法所测FRC(3.99±0.93)L比较,差异有统计学意义(t=4.940,P<0.05)。体描法所测RV及TLC与单次呼吸法所测RV及TLC值比较,差异有统计学意义(P<0.05)。结论体描法测得的数值优于单次呼吸法,COPD的患者推荐使用体描法测定FRC及RV、TLC值。

Objective To compare and analyze the functional residual capacity(FRC)and related parameters RV and TLC values of patients with chronic obstructive pulmonary disease(COPD)by using volumetric method and single breath method to provide objective basis for clinical application.Methods Selected 40 patients with chronic obstructive pulmonary disease diagnosed as chronic obstructive pulmonary disease by pulmonary function tests in the Department of Respiratory Medicine of the hospital from December 2018 to May 2019.FRC,RV,and TLC values were measured by body scanning method and single breath method.Compare the differences.Results The FRC measured by the body scan method was(5.05±1.49)L,compared with the FRC(3.99±0.93)L measured by the single breath method,the difference was statistically significant(t=4.940,P<0.05).Comparing the RV and TLC values measured by the body scan method and the single breath method,the difference was statistically significant(P<0.05).Conclusion The value measured by the volumetric method is better than the single breath method,it is recommended for COPD patients to determine FRC,RV,and TLC values using body scanning.