因此要准确诊断患者是否有肺动脉高压就只有实际测量肺动脉压力值，这就需要做右心导管(Right Heart Catheter)检查。右心导管检查不仅是确诊肺动脉高压的金标准，也是诊断和评价肺动脉高压以及指导肺动脉高压患者治疗必不可少的检查手段。
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The classic measurement of the pressure of pulmonary artery is by cardiac catheter of right heart, and the gold standard of PAH is also this method.
肺动脉压力经典的测量方法是通过右心导管检查术，肺动脉高压其诊断的金标准也是有创性右心导管检查法。
METHODS: Changes in right heart load in 46 patients with trans-catheter ASD occlusion were detected by echocardio gr aghy before and after the occlusion.
方法：应用超声心动图对46例经心导管ASD封堵术患者的术前及术后右心负荷变化情况进行检测。
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