摘要
研究经犬食管探测降主动脉的光电脉搏波特征参数与同步股动脉有创血压波的相关性。实验犬10只,经食管获取降主动脉光电脉搏波信号,同步记录股动脉有创血压信号。应用逐步回归分析法研究降主动脉脉搏波特征参数[H、h、h/H、g/H、At、s、H(1+ts/td)、k]与有创血压值的相关性。特征参数中与收缩压相关性较好的有k和h/H(引入比90%和80%);与舒张压相关性较好的有k、H和s(引入比90%、80%和70%);与平均压相关性较好的有k和H(引入比均为90%),其相应的复相关系数均值分别为0.871、0.900和0.856。研究结果表明:经食管降主动脉脉搏波特征参数与收缩压、舒张压及平均压具有特定的相关性。
The present paper aims to investigate the relation between characteristic parameters of transesophageal photoelectric pulse wave in descending aorta and ambulatory artery blood pressure.The chests of ten adult experimental dogs were performed to take the photoelectric pulse wave of descending aorta transesophageally.The concurrent femoral artery invasive blood pressure was recorded simultaneously.Stepwise regression analysis method was used to study the correlation efficient between characteristic parameters of descending aorta pulse wave（H,h,h/H,g/H,At,s,H（1＋ts/td）,k）and invasive artery blood pressure.The characteristic parameters,k and h/H（ratio： 90% and 80%） was proved that they had good correlation with systolic pressure;and k,H and s（ratio： 90%,80% and 70%）,had good correlation with diastolic pressure;while k and H（ratio：90% for both） had good correlation with mean pressure.The mean values of multiple correlation coefficients of the selected characteristic parameters of descending aorta pulse wave with systolic pressure,diastolic pressure and mean pressure of femoral artery were 0.871,0.900 and 0.856,respectively.The characteristic parameters of descending aorta pulse wave had specific correlation with systolic pressure,diastolic pressure and mean pressure.
出处
《生物医学工程学杂志》
CAS
CSCD
北大核心
2012年第2期277-281,共5页
Journal of Biomedical Engineering
基金
国家自然科学项目资助(80141062)
贵州省优秀科技教育人才省长资金资助项目(2005241)
关键词
经食管
光电脉搏波
特征参数
动态血压
Transesophageal
Photoelectric pulse wave
Characteristic parameters
Blood pressure
