目的探索MRI无创性测量肺动脉舒张压(PADP)的新途径。
Objective to explore new non-invasive approach to measure the pulmonary artery diastolic pressure (PADP) with MRI.
结果：心脉龙增加心输出量，显著降低肺动脉舒张压和肺毛细血管压。
The results show that Xinmailong can increase the output of heart and reduce the diastolic pressure of pulmonary artery and the pressure of pulmonary capillaries.
表明可用超声心动图监测肺毛细血管嵌入压，从而亦可了解肺动脉舒张压。
It is rather preferable to monitor PCWP by M-mode echocardiography, so that the diastolic pressure of pulmonary artery may be given.
A组采用改良的右心导管测定法测定肺动脉平均压、右心室收缩压、右心室舒张压。
The MPAP, RVSP, RVDP were determined by modified rig ht heart catheterization in group A.
拔管前后的心率、舒张压、中心静脉压和肺动脉嵌压均无显著差异（P>0.05）；
There was no significant difference in HR, DBP, CVP and PAWP before and after extubation (P>0.05).
拔管前后的心率、舒张压、中心静脉压和肺动脉嵌压均无显著差异（P>0.05）；
There was no significant difference in HR, DBP, CVP and PAWP before and after extubation (P>0.05).
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