Evaluation of a novel echocardiographic three-dimensional automated software for the assessment of the aortic root in candidates for transcatheter aortic valve replacement
10.3760/cma.j.issn.1004-4477.2017.06.004
- VernacularTitle:eSie Valves三维自动定量分析在经导管主动脉瓣置换术前评估主动脉根部的应用价值
- Author:
Zhaoxu HUANG
;
Zhaoxia PU
;
Xiangyang XIA
;
Liming ZHOU
;
Xianbao LIU
;
Yuxin HE
;
Jian′an WANG
;
Wei HE
;
Qijing ZHOU
;
- Keywords:
Echocardiography,transesophageal;
Transcatheter aortic valve replacement;
Aortic valve stenosis
- From:
Chinese Journal of Ultrasonography
2017;26(6):478-483
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the accuracy of a novel echocardiographic three-dimensional automated software for the assessment of the aortic root in candidates for transcatheter aortic valve replacement(TAVR).Methods Four patterns(Lax,Lax-Res,Sax,Sax-Res) of 3D-TEE imaging of aortic root were gotten preoperatively in 18 patients with severe tricuspid aortic stenosis who were referred to our center for TAVR.The specialized 3D-TEE reconstruction software,eSie Valves,then automatically configured a geometric model of the aortic root from the images obtained by 3D-TEE and performed a quantitative analysis of these structures:the minimal diameter(Dmin),maximal diameter(Dmax),area and perimeter(Peri) of aortic annulus,height of the ostia of the left/right coronary artery above the aortic annulus(LOH/ROH).The echo dimensions were compared with the MDCT measurements.Results No statistically significant difference were found in above parameters between the ZOOM pattern (Sax-Res and Lax-Res) and CT measurements(all P>0.05).Lax-Res pattern measurements had good correlation with MDCT,with r valves of 0.81,0.77,0.89,0.84 for Lax-Res-Dmin,Lax-Res-Dmax,Lax-Res-Area,Lax-Res-Peri,respectively(all P<0.05).3D-TEE LOH/ROH had poor correlation with MDCT LOH/ROH (all r<0.7).Conclusions The new automatic 3D-TEE software allows modelling and quantifying the aortic annulus dimensions from 3D-TEE data in patients with tricuspid aortic valves,and Lax-Res pattern is recommended.Quantified assessment of LOH/ROH is not ideal and needs to be improved.
