Conclusion DSCT can accurate measure mitral valve orifice area with heart mitral disease.
结论DSCT可准确评价二尖瓣病变瓣口面积。
Mitral insufficient grades were determined by the effective regurgitant orifice area measured with spectral Doppler.
二尖瓣关闭不全程度用频谱多普勒测定的有效返流口面积确定。
It can effectively expand the velopharyngeal orifice area ventilation, to maintain the tension soft palate and the normal function of pharynx mucosa.
并可有效地扩大腭咽腔的通气面积，保持软腭的紧张度及咽黏膜的正常功能。
Currently the indexed effective orifice area measured by postoperative transthoracic echocardiography is considered the only appropriate parameter which can accurately describe the mismatch.
目前认为术后经胸超声测得的瓣膜有效开口面积指数是唯一可准确描述该现象的指标。
Pupose To study the influence of left atrial diameter, area of mitral orifice and mitral regurgitation on thrombosis in left atrium.
目的研究左房内径、二尖瓣口面积、二尖瓣返流对左房血栓形成的影响。
The results indicate that the decompression time is directly proportional to cabin capacity and inversely proportional to the valid area of the explosion orifice;
结果表明：减压时间与座舱的容积成正比，与爆炸孔的有效面积成反比；
The smaller the jet orifice with quicker jet velocity, the larger the color Doppler jet area(P<0.001).
射流口径越小（射流速度越大），射流面积越大（P＜0．001）。
The bright area of reflex is enclosed by the reflection points of two ends of linear lamp-house at the edge of orifice of lamp and points of intersection with testing screen.
反射光的亮区是由线光源两端点在灯口边缘上的点反射且与测试屏交点所围成的。
The bright area of reflex is enclosed by the reflection points of two ends of linear lamp-house at the edge of orifice of lamp and points of intersection with testing screen.
反射光的亮区是由线光源两端点在灯口边缘上的点反射且与测试屏交点所围成的。
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