实时三维超声心动图评价经皮球囊二尖瓣扩张术前后二尖瓣口面积的初步探讨  

Preliminary study of real-time three-dimensional echocardiographic planimetry of the mitral valve area before and after percutaneous balloon mitral valvuloplasty

作　　者：张嬿[1] 唐红[1] 黄鹤[1] 宋海波[2] 

机构地区：[1]四川大学华西医院心内科,成都610041 [2]四川大学华西医院麻醉科,成都610041

出　　处：《中华超声影像学杂志》2006年第2期92-94,共3页Chinese Journal of Ultrasonography

摘　　要：目的探讨实时三维超声心动图评价经皮球囊二尖瓣扩张术(PBMV)前后二尖瓣口面积(MVA)的可行性及准确性。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。结果①PBMV前后MVA差异有统计学意义(P<0.001);RT3DE法与2D法及PHT法测量的PBMV前后MVA差异无统计学意义且相关性好(术前r分别为0.845、0.596;术后r分别为0.753、0.848);RT3DE法测量的二尖瓣口面积的变化值(ΔMVA)与2D法及PHT法差异无统计学意义(P>0.05)。②RT3DE法测得的MVA略小于2D法。③RT3DE法测量PBMV前后3个Zoom图像与全容积图像MVA间差异无统计学意义(P>0.05)。结论实时三维评价PBMV前后二尖瓣口面积是可行的、准确的,为术后瓣口面积的随访提供了一种新的定量方法。Objective To assess the feasibility and accuracy of real-time three-dimensional echocardiographic （RT3DE） planimetry of the mitral valve area（MVA） before and after percutaneous balloon mitral valvuloplasty（PBMV）. Methods MVA was estimated in 18 patients before and after PBMV, using two- dimensional echocardiography （2DE）, Doppler pressure half-time （PHT） and volumetric RT3DE. Results （1） There were significant difference between MVA measured before and after PBMV （P 〈 0.00l）, but MVA measured by RT3DE had no significant difference and correlated well with MVA measured by 2DE and PHT before（ r1 = 0. 845, r2 = 0. 596） and after PBMV （ r1 = 0. 753, r2 = 0. 848）. Meanwhile MVA increases（AMVA） measured by RT3DE had no significant difference with that measured by 2DE and PHT（ P 〉0.05）. （2）MVA measured by RT3DE was slightly less than that measured by 2DE. （3）There were no significant difference among MVA measured by RT3DE in three zoom images and full volume image （ P 〉 0.05 ）. Conclusions RT3DE planimetry of MVA before and after PBMV is feasible and accurate. It provides a new quantitative way for MVA following up after PBMV.

关 键 词：超声心动描记术 实时三维 二尖瓣狭窄 气囊扩张术 

分 类 号：R445.1[医药卫生—影像医学与核医学]