Non-invasive estimation of pulmonary artery systolic pressure with Doppler ultrasound.
Non-invasive estimation of pulmonary artery systolic pressure with Doppler ultrasound.
复制标题
用多普勒超声无创评估肺动脉收缩压。
作者：
L. Hatle;B. Angelsen;A. Tromsdal
肺动脉的收缩压由肺动脉瓣关闭和三尖瓣打开之间的间隔来估计，并使用先前描述的心率图来估计。用多普勒超声记录瓣膜运动时间。在48例肺动脉高压患者中，有45例的估计血压与插管时的血压相关。可以测量压力的瞬时变化以及治疗和运动期间的变化。该方法适用于所有年龄组，在肺动脉高压的检测和患者的随访中都很有用。它可能有助于确定手术的最佳时间或治疗效果。
Systolic pressure in the pulmonary artery was estimated from the interval between pulmonary valve closure and tricuspid valve opening, and the heart rate using a nomogram previously described. The timing of valve movements was recorded by Doppler ultrasound. The estimated pressure correlated well with that obtained at catheterisation in 45 of 48 patients with pulmonary hypertension. Instantaneous variations in pressure and changes with treatment and during exercise could be measured. The method was easy to apply in all age groups, and was found useful both in detecting pulmonary hypertension and in the follow-up of patients. It may help to determine the optimal time for surgery or the effect of treatment.