DOPPLER ESTIMATION OF PULMONARY-ARTERY SYSTOLIC PRESSURE REVISITED

被引：6

作者：

BATTLE, RW ^{[1
]}

TISCHLER, MD ^{[1
]}

机构：

[1] MED CTR HOSP VERMONT,CARDIOL UNIT,BURLINGTON,VT 05401

来源：

ECHOCARDIOGRAPHY-A JOURNAL OF CARDIOVASCULAR ULTRASOUND AND ALLIED TECHNIQUES | 1994年 / 11卷 / 05期

关键词：

DOPPLER ECHOCARDIOGRAPHY; PULMONARY ARTERY SYSTOLIC PRESSURE;

D O I：

10.1111/j.1540-8175.1994.tb01085.x

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Previous attempts at noninvasive estimation of pulmonary artery systolic pressure (PA(S)) were limited by the inability to identify adequate spectral signals of tricuspid regurgitation (TR) in a significant proportion of patients. Recently, image and color flow directed continuous-wave Doppler have enabled spectral mapping of previously undetectable TR jets. Accordingly, 30 consecutive patients underwent two-dimensional and continuous-wave Doppler echocardiograms immediately before right heart catheterization. PA(S) was calculated as SIGMA (4V2 + RA) where V is the maximal velocity of the TR jet in m/sec and RA is right atrial pressure as estimated by the caval respiratory index. Twenty-eight patients (93%) had detectable signals of TR. Directly measured PA(S) ranged from 21 to 95 mmHg (mean +/- SD, 40 +/- 18). Correlation between Doppler and catheter-measured PA(S) was R - sq = 0.93 with a standard error of the estimate of 4.7 mmHg. Accurate results were obtained over a wide range of pulmonary pressures. Thus, noninvasive determination of PA(S) is feasible in most patients including those with normal PA(S), and correlates extremely well with direct measurements.

引用

页码：455 / 459

页数：5

共 9 条

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