肺动脉口

目的探讨右心声学造影对合并肺动脉口狭窄（PS）的房间隔缺损（ASD）的诊断价值。

Objective To explore the diagnosis value of contrast echocardiography of right heart in the atrial septal defects ( ASD ) complicated with pulmonic stenosis ( PS ) .

肺动脉口狭窄时肺动脉血流速度的探讨

Discussion of the Pulmonary Flow Velocity in Pulmonary Stenosis

主动脉、肺动脉口流速在不同胎龄期的变化无显著意义。

Blood velocity in aorta and pulmonary artery remained steady along with the gestational age .

右心声学造影诊断合并肺动脉口狭窄的房间隔缺损应用价值

Diagnosis value of contrast echocardiography of right heart in atrial septal defects complicated with pulmonic stenosis

胎儿出生后左心室舒张期房室瓣口血流速度A／E比值明显下降，主动脉瓣口血流峰速明显增快；右心室房室瓣口血流及肺动脉瓣口血流速度无明显变化。

A / E ratio in mitral were obviously decreased and blood flow velocity of aortic valve were significantly increases in neonate .

结果：ASD封堵治疗术后三尖瓣口E峰、A峰峰值速度及肺动脉瓣口血流速度、积分和压力阶差显著降低。

Peak and mean blood velocity and velocity-time integral ( VTI ) of pulmonary valve orifice were measured in parasternal aortic root short axis view . Results : After occlusion , the E velocity and A velocity at tricuspid valve orifice decreased .

利用脉冲多普勒测量肺动脉瓣口血流流速时间积分（PVVTI）。

The pulmonary valvular velocity time integral ( PVVTI ) was obtained from the pulsed wave Doppler .

肺动脉瓣口多普勒频谱分析与肺循环血流动力学的定量关系&与有创检查同步对比研究

Relation of pulmonary flow velocity patterns to hemodynamics of pulmonary circulation : a simultaneous study of pulsed Doppler and catheterization

肺动脉瓣口面积平均增加95±44%。

There was significant increase in pulmonary orifice area from 0.6 ± 0.22 to 1.11 ± 0.36cm ~ 2 / m ~ 2 , with a mean increase of 95 ± 44 % .

合并房间隔和室间隔缺损各1例，在体外循环深低温低流量下切开主肺动脉缝合导管内口。

Trans-pulmonary suture of PDA in a case associated with ASD and a case associated with VSD under deep hypothermia extracorporeal circulation with low flow perfusion .

手术前后分别记录右心房压、左心房压、肺动脉压，二尖瓣口面积，并进行手术后随防。

Right atrial pressure ( RAP ), left atrial pressure ( LAP ), pulmonary artery pressure ( PAP ) and mitral valve area ( MVA ) were measured before and after the procedure , respectively .

肺动脉多普勒频谱对高位室间隔缺损与肺动脉口狭窄的鉴别

Differentiation between Ventricular Septal Defect and Pulmonary Stenosis with Doppler Spectrum of Pulmonary Artery

肺动脉分支血流呈单向双峰，流速明显低于肺动脉瓣口流速，其血流形态表现为高阻力低灌注的特点。

Blood velocity waveforms of the pulmonary artery branches demonstrated single-phasic and double peaks , the peak velocity was significantly lower than that of pulmonary artery and the waveform was characterized with high resistance and low perfusion .