Objectives: To evaluate a systematic approach for measurement of aortic annulus dimensions by cardiac computed tomography. Methods: CT data sets of 64 patients were evaluated. An oblique cross-section aligned with the aortic root was created by systematically identifying the caudal insertion points of ...
1. Feasibility of aortic annular diameter measurement by echocardiography for aortic valve replacement; 目的探讨利用超声心动图 (心超 )测量主动脉瓣环内径 ,为患者在人工机械主动脉瓣置换术前选择一个大小型号合适的人工机械瓣膜。2) subarotic diamter 主动脉瓣下内径...
Accurate measurement of aortic annulus diameter is crucial for choosing suitable prosthetic size for transcatheter aortic valve implantation (TAVI). Several imaging methods are available for the measurement, but significant variability between different modalities has been observed. The purpose of this study...
Figure 1This figure depicts the main structures of interest in the aortic root in a simplistic form. It is important to note that there is a difference between the VAJ (often incorrectly referred to as the aortic annulus) and the VBR. The VBR is a line that connects the nadirs of all ...
Accurate measurement of the aortic annulus is important when approaching anaortic valverepair. Many clinical studies have shown that the dimension of the annulus is one of the most important parameters for recurrence ofaortic regurgitation(AR) and for valvereoperationat mid- and long-term follow-up...
2) small aotic valve annulus 小主动脉瓣膜环 3) aortic annular diameter 主动脉瓣环内径 1. Feasibility ofaortic annular diametermeasurement by echocardiography for aortic valve replacement; 目的探讨利用超声心动图 (心超 )测量主动脉瓣环内径 ,为患者在人工机械主动脉瓣置换术前选择一个大小型号合适的人工...
Initial aortic annular measurement permitted a 25 mm valve sizer. The left atrium (LA) was opened along the intra-atrial groove, however satisfactory visualization of the mitral valve was not possible. We then proceeded to incise the right atrium and inter-atrial septum to improve exposure of ...
Correlation for each measurement was assessed using linear regression with the following results: intraobserver at sinuses of Valsalva (R2 = 0.94) and ascending aorta (R2 = 0.97) and interobserver at the sinuses of Valsalva (R2 = 0.93) and ascending aorta (R2 = 0.94). ...
measurements are made from "inside edge-to-inside" edge, i.e., the intraluminal dimension the aortic valve is measured from the hinge points (inner edges) vascular measurements are made perpendicular to the long axis of the vessel The reference data from Paris is performed using measurement tech...
Comparison of two-dimensional and three-dimensional imaging techniques for measurement of aortic annulus diameters before transcatheter aortic valve implan... AIMS: Different two-dimensional (2D) and three-dimensional (3D) imaging techniques are used for procedure planning and selection of prosthesis size...