摘要
目的 探讨改良的肺动脉／ 主动脉血流时间间期比定量估测肺动脉压的新方法。方法 在４７ 例入院行心导管检查的患儿中，利用多普勒超声技术测量主、肺动脉血流Ｆ 值［Ｆ＝ （ＰＥＰ×ＰＶ）／（ ＡＴ×ＥＴ） ，Ｆ１ ＝ ＰＥＰ／ ＡＴ，Ｆ２ ＝ ＰＥＰ／ＥＴ，Ｆ３ ＝ ＰＥＰ／（ ＡＴ ×ＥＴ） ，Ｆ４ ＝ （ ＰＥＰ×ＰＶ）／ ＡＴ，Ｆ５ ＝ （ＰＥＰ×ＰＶ）／ＥＴ］ ，按Ｍｏｒｅｒａ 等提出的ＦＰＡ／ＦＡＯ法估测肺动脉压，并与心导管值对比。结果 根据Ｆ３ＰＡ／Ｆ３ＡＯ估测的肺动脉收缩压、平均压与心导管实测值相关性最好（ ｒ ＝ ０ ．９３ 、０ ．８９） ；ＦＰＡ／ＦＡＯ次之（ ｒ ＝ ０ ．８３ 、０ ．８０） ，Ｆ１ＰＡ／Ｆ１ＡＯ、Ｆ２ＰＡ／Ｆ２ＡＯ、Ｆ４ＰＡ／Ｆ４ＡＯ、Ｆ５ＰＡ／Ｆ５ＡＯ较差（ ｒ ＝ ０ ．６１ ～０ ．７９） 。结论 改良的肺动脉／ 主动脉血流时间间期比例系数Ｆ３ＰＡ／Ｆ３ＡＯ为无创定量估测肺动脉压的最佳指标。
Objective To explore the modified pulmonary to aortic flow time interval ratios in quantitative estimation of pulmonary arterial pressures.Methods Pulmonic and aortic F[F=(PEP×PV)/(AT×ET),F 1=PEP/AT,F 2=PEP/ET,F 3=PEP/(AT×ET),F 4=(PEP×PV)/AT,F 5=(PEP×PV)/ET] were calculated by pulsed Doppler echocardiography in 47 patients with left to right shunting of congenital heart disease,pulmonary artery pressures calculated by F PA /F AO ,F 1PA /F 1AO ,F 2PA /F 2AO ,F 3PA /F 3AO ,F 4PA /F 4AO ,F 5PA /F 5AO were compared with pulmonary arterial pressures measured by cardiac catheterization.Results The estimated pulmonary systolic and mean pressures adopting F 3PA /F 3AO highly correlated with those measured by cardiac catheterization(r= 0.93 , 0.89 ,P< 0.01 ),it was correlated better than others(r= 0.61 ～ 0.83 ,P< 0.01 ).Conclusions The modified pulmonary to aortic flow time interval ratios F 3PA /F 3AO is an accurate parameter for quantitative assessment of pulmonary arterial pressure.
出处
《中华超声影像学杂志》
CSCD
2000年第1期32-34,共3页
Chinese Journal of Ultrasonography
基金
上海市高等学校科学技术发展基金!(ZX95002)
关键词
肺楔压
肺动脉
超声心动图
Echocardiography,Doppler
Pulmonary wedge pressure
Pulmonary to aortic flow time intervals
