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应用放射性核素心血管显像原理，一次性注药，同时获得放射性核素心血管造影及门电路心血池显像，测右心射血分数，肺尖、肺底放射性核素分布峰值，来定量分析肺动脉压力。结果，肺心病患者右心射血分数明显降低；肺尖与肺底放射性核素分布峰值比和右心射血分数之间呈负相关；而上述峰值比与应用心导管法测平均肺动脉压力呈正相关；平均肺动脉压与ＲＶＥＦ之间为负相关，该法简便，安全、重复性好，是一项无创性估价肺动脉压力的方法。
Application of radionuclide cardiovascular imaging principle, a one-time injection, while obtaining radionuclide angiography and portal circuit pool imaging, measured right ventricular ejection fraction, apical, pulmonary radionuclide peak distribution, to Quantitative analysis of pulmonary artery pressure. Results, right heart ejection fraction decreased significantly in patients with cor pulmonale; negative correlation between the peak ratio of the radionuclide distribution in the apical and pulmonary bottom and the right ventricular ejection fraction; while the above peak ratio was positively correlated with the average pulmonary artery pressure ; Mean pulmonary artery pressure and negative correlation between RVEF, the method is simple, safe, good repeatability, is a noninvasive method of estimating pulmonary artery pressure.