Objective: to improve the diagnostic rate of pulmonic stenosis using two dimensional and Doppler echocardiography and to reduce the rate of misdiagnosis.
目的：提高二维及多普勒超声对肺动脉口狭窄的诊断正确率，降低漏诊率。
Methods The left ventricular systolic and diastolic function of patients was evaluated using two-dimensional and pulse Doppler echocardiography by DSE.
方法采用二维、脉冲式多普勒超声检测DSE患者左室收缩和舒张功能。
EDV, ESV, and LVEF were calculated using Simpson's rule algorithm for monoplane LV angiography, using M-mode method for two-dimensional echocardiography.
左室造影采用单平面法(辛普森法则)，二维超声心动图采用M型超声获得EDV、ESV和LVEF。
The quantification of mitral stenosis by using a new color Doppler flow convergence method was evaluated, and compared with two -dimensional echocardiography, pressure half- time and combined method.
本研究应用彩色多普勒血流会聚新方法评价了对二尖瓣狭窄的定量诊断，并与二维超声、压力降半时间及综合法测量二尖瓣狭窄进行了比较。
Using two dimensional guided M-mode echocardiography we determined cardiovascular parameters.
用二维及M型超声心动测定有关心血管参数。
Methods MVA was estimated in 18 patients before and after PBMV, using two-dimensional echocardiography(2DE), Doppler pressure half-time(PHT) and volumetric RT3DE.
方法分别应用二维法（2D法）、多普勒压力减半时间法（PHT法）及实时三维容积法（RT3DE）检测18例行PBMV患者手术前后MVA。
Methods MVA was estimated in 18 patients before and after PBMV, using two-dimensional echocardiography(2DE), Doppler pressure half-time(PHT) and volumetric RT3DE.
方法分别应用二维法（2D法）、多普勒压力减半时间法（PHT法）及实时三维容积法（RT3DE）检测18例行PBMV患者手术前后MVA。
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