| 陈庆伟,JRTC·Roelandt,WB·Vletter.经胸动态三维超声心动图对二尖瓣狭窄患者瓣口面积的评价[J].中国医学影像技术,1997,13(2):107~110 |
| 经胸动态三维超声心动图对二尖瓣狭窄患者瓣口面积的评价 |
| Accurate Mitral Valve Area Assessment in Patients with Mitral Stenosis by Dynamic Precordial Three Dimensional Echocardiography |
| 投稿时间：1996-09-15 |
| DOI： |
| 中文关键词: 经胸动态三维超声心动图 二尖瓣狭窄 二尖瓣口面积 |
| 英文关键词:Dynamic precordial three dimensional echocardiography Mitral stenosis Mitral valve area |
| 基金项目: |
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| 中文摘要: |
| 采用经胸动态三维超声心动图（3D-Echo）对15例二尖瓣狭窄（MS）患者的二尖瓣口面积（MVA）进行了定量研究。通过心脏三维重建仪平行切割二尖瓣结构衍生出8个从二尖瓣环至瓣尖的等距离短轴平面,从中能够确定并测量代表最小MVA的平面。结果显示3D-Echo测量的MVA与多普勒压力半降时间（PHT）导出的MVA高度相关（r=0.97,P<0.001）,经胸二维超声心动图（2D-Echo）测量的MVA与3D-Echo测量的MVA仅中度关连（r=0.83,P<0.01）,2D-Echo测量的MVA平均大于3D-Echo测量的MVA为0.38cm2,这可能与从胸骨旁短轴切面上难以切扫到最小的瓣口平面有关。本研究表明3D-Echo为定量评价MS患者的MVA提供了一种更准确的全新影像技术。 |
| 英文摘要: |
| The measurement of mitral valve orifice area (MVA) from dynamic three dimensional echocardiographic (3D Echo) image data sets obtained by a rotational precordial image probe was studied in 15 patients with native mitral stenosis.The smallest MVA was identified from a set of 8 parallel short axis cutplanes of the mitral valve between the annulus and the tips of leaflets (paraplane echocardiography) and measured by planimetry.The MVA measured from 3D Echo closely correlated with the results of Doppler pressure half time (PHT) (r=0 97, P <0 001).The MVA measured from two dimensional echocardiography (2D Echo) moderately correlated with 3D Echo derived MVA measurements determinations (r=0 83, P <0 01).2D Echo overestimated the 3D Echo MVA by an average of 0 38cm 2 and may be related to the difficulties in visualization the smallest orifice in precordial short axis views.The present study shows that dynamic precordial three dimensional echocardiography is a new imaging technology for the accurate MVA assessment in mitral stenosis. |
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