摘要
目的:探讨全身成像模式三维量化(GI3DQ)法直接测量二尖瓣反流(MR)束体积用以评估二尖瓣反流体积的可行性和准确性。方法:入选93例二尖瓣反流患者,分两组:偏心性二尖瓣反流52例为偏心性组;中心性二尖瓣反流41例为中心性组。GI3DQ法直接测量二尖瓣反流体积;近端血流等速面(PISA)法计算有效反流口面积(EROA),然后乘以二尖瓣反流速度时间积分(MR-VTI)得出的二尖瓣反流体积作为参考标准。结果:偏心性与中心性组PISA法计算二尖瓣反流体积与GI3DQ测量二尖瓣反流体积相关性分别为:r=0.78,r=0.94;一致性分析未见两种方法差异有统计学意义。结论:与PISA法相比,在中心性及偏心性二尖瓣反流中,GI3DQ法评估二尖瓣反流体积是可行且准确的。
Objective： To explore the feasibility and accuracy of mitral regurgitation volume （MRvol） for quantifying MR jet volume with general imaging 3-dimensional quantification （GI3DQ） method. Methods： A total of 93 MR patients were enrolled for 2 groups, Central MR group, n=41 and Eccentric MR group, n=52. MRvol was directly assessed by GI3DQ method, the effective regurgitation orifice area （EROA） was measured by proximal isovelocity surface area （PISA） method, then multiplied by the mitral regurgitation time-velocity integral （MR- VTI）, and the result was used as the reference standard of MRvol. Results： In both Eccentric MR group and Central MR group, the MRvol assessed by PISA method and GI3DQ method had the correlation oft=0.78 and r=0.94, while the coherence had no statistic difference. Conclusion： Compared with PISA method, GI3DQ method was accurate and feasible for quantifying the MRvol in patients with either central MR or eccentric MR.
出处
《中国循环杂志》
CSCD
北大核心
2014年第1期35-39,共5页
Chinese Circulation Journal
基金
国家自然科学基金面上项目(81071161)
关键词
全身成像模式三维量化
二尖瓣反流
近端血流等速面
General imaging 3-dimensional quantification
Mitral regurgitation
Proximal isovelocity surface area
