摘要
目的探讨全身成像三维量化(GI3DQ)法测量二尖瓣反流束体积的可行性和准确性。方法 93例二尖瓣反流(MR)患者:偏心性MR组52例,中心性MR组41例。GI3DQ法直接测量MR体积,以实时三维超声心动图(RT3DE)计算的MR体积作为参考标准。结果在偏心性MR组,两种方法相关性:r=0.91;一致性分析:GI3DQ法较RT3DE法平均低估MR体积约10.6 ml;在中心性MR组,两种方法相关性:r=0.96;一致性分析差异无统计学意义。结论在偏心性MR组,GI3DQ法评估MR体积存在明显低估;在中心性MR组,GI3DQ法与RT3DE法未见明显差异。
Objective To evaluate feasibility and accuracy of mitral regurgitant volume （MRvol） by quantification of mitral regurgitation （MR） jet volume using general imaging 3-dimensional quantification （GI3DQ）. Methods Ninety-three patients with MR were divided into central MR group （n=41） and eccentric MR group （n=52）. Mitral regurgitation jet volume was measured using GI3DQ. The MRvol calculated by real-time 3-dimensional echocardiography （RT3DE） was used as reference standard. Results In eccentric MR group, MRvol measured by GI3DQ method with a lower underestimation （mean difference = -10.6 ml） showed good correlation with MRvol measured by RT3DE（r = 0.91 ）. In central MR group, the correlation of MRvol measured by GI3DQ method and by RT3DE method was better （r = 0.96 ）, but had no significant difference. Conclusion Quantification of central MRvol with GI3DQ was as accurate as RT3DE,but GI3DQ method underestimated eccentric MRvol.
出处
《临床超声医学杂志》
2013年第11期741-744,共4页
Journal of Clinical Ultrasound in Medicine
基金
国家自然科学基金面上项目(81071161)
关键词
超声心动描记术
实时
全身成像三维量化
二尖瓣反流
Echocardiography, real-time
General imaging 3-dimensional quantification
Mitral regurgitation
