Computation of Time-Constant Histograms from the Forced Expired Volume-Time Curves
Computation of Time-Constant Histograms from the Forced Expired Volume-Time Curves作者机构:Department of Respiratory Medicine Changzheng Hospital Second Military Medical College Shanghai
出 版 物:《Journal of Medical Colleges of PLA》 (中国人民解放军军医大学学报(英文版))
年 卷 期:1988年第1期
页 面:90-93页
学科分类:1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题:compartment model volume-time curve time-constant histogram lung volume measurement
摘 要:An efficient BASIC program was established on Apple-Ⅱmicrocomputer with the CHESTAC-35F pulmonary function testing system tocalculate the time-constant histogram from the *** a set of analogousstudies,we confirmed that the recovered time-constant histogram was within onecompartment of the assumed one and that the root of mean square values of theresiduals between the experimental and model volume-time curves was *** healthy adult subjects,the mean value of time-constant histograms(TCx)hadthe variation coefficient 6.6%.The results show that our method is reliable andreproducible,and it can be used for clinical investigation.