重建心阻抗图测定正常人总外周阻力的探讨  

Measuring Total Peripheral Resistance with Reconstructed Impedance Cardiogram

作　　者：胡爱荣[1] 洪文钦[2] 肖伟[2] 陈南平[2] 

机构地区：[1]南昌大学理学院物理系,南昌330047 [2]南昌大学理学院物理实验中心,南昌330047

出　　处：《江西医学院学报》2009年第4期4-6,8,共4页Acta Academiae Medicinae Jiangxi

基　　金：江西省自然科学基金(0340060)

摘　　要：目的探讨重建心阻抗图测定正常人总外周阻力(TPR)和总外周阻力指数(TPRI)的正常值。方法先用重建心阻抗图测定180例体检正常成人的心排血量,进而计算TPR和TPRI,分性别、年龄组进行统计学处理。结果TPR和TPRI都随年龄的增大而增大;同一年龄组内女性的TPR高于男性(P<0.05),但对于TPRI,男女之间基本一致(P>0.05);TPR的正常值<1650dyn.s/cm5,TPRI的正常值<2650(dyn.s/cm5).m2。结论重建心阻抗图测得的总外周阻力能够反映人体正常和异常的血流动力学变化。Objective To investigate the normal value of the total peripheral resistance（TPR） and total peripheral resistance index（TPRI）measured with reconstructed impedance cardiogram （RICG）. Methods The cardiac output of 180 normal adults were measured with reconstructed impedance cardiogram,and the corresponding TPR and TPRI were calculated. The TPR and TPRI data were statistically processed according to sex and age. Results TPR and TPRI increases were proportionate to the increases in age;TPR in women was higher than that in men （P〈0.05）, however,there was no differences between men and women in TPRI（P〉0.05） ;normal value of TPR is lower than 1 650 dyn·s/cm^5,and that of TPRI is lower than 2 650 （dyn·s/cm^5 ）·m^2. Conclusion TPR measured with RICG can reflect either normal or abnormal change of hemodynamics in human body.

关 键 词：重建心阻抗图 总外周阻力 正常值 

分 类 号：R443.8[医药卫生—诊断学]