2009年9月22日 · This TEE transducer has been demonstrated to provide superb 3D visualization of posterior cardiovascular structures (eg, mitral valve, interatrial septum, and left atrial appendage); however, data about its usefulness in imaging of …

Echocardiographic data obtained by the different techniques were compared with surgical inspection. Three-dimensional techniques were feasible in a relatively short time (3D TTE: 7 +/- 4 min; 3D TEE: 8 +/- 3 min), with good (3D TTE 55%; 3D TEE 35%) and optimal (3D TTE 21%; 3D TEE 45%) imaging quality in the majority of cases.

Purpose: To determine the feasibility and accuracy of real time 3D echocardiography (RT3DE) in determining the dimensions and anatomical type of the patent ductus arteriosus (PDA). Methods: The study included 42 pediatric patients with a mean age of 3.6 years (ranging from 2 months to 14 years) who were referred for elective percutaneous PDA ...

2014年3月14日 · With the recent introduction of 3D echocardiography and its unique ability to allow real-time volumetric imaging and thus improve the accuracy of evaluating cardiac chambers, the idea of using this unique capability in interrogating extra cardiac vascular structures like the PDA to optimize the management seems appealing.

2D view of a large patent ductus arteriosus (PDA) connecting from the main pulmonary artery (MPA) to the Aorta (Ao). The right (RPA) and left pulmonary artery (LPA) are visualized as well. Colour box on the PDA confirms the left to right direction of the shunt (flow coming towards the probe; from the Ao to the MPA).

2012年2月13日 · Patent ductus arteriosus (PDA) accounts for 5–10% of all congenital heart diseases (CHD). It occurs more commonly in premature infants, where 8 out of 1000 premature infants have PDA compared to 2 out of 1000 term infants. It is more common in females with a female to male ratio of 3:1 [12].

2017年6月1日 · Intra-operative TEE, in particular real-time three-dimensional imaging, was pivotal for assessing the PDA morphology, monitoring during the procedure, selecting the device size, and confirming device placement.

Transthoracic echocardiography guidance is crucial for accurate intraductal positioning of the device ( Figure 5 A-F). The device must be repositioned if necessary and must be confirmed again by...

2016年1月26日 · 三维超声心动图目前已是临床常用的瓣膜性心脏病的检查方法，尤其是实时三维经食管超声心动图（3D TEE）。 1. 二尖瓣是三维超声心动图检查时最能清晰显示的瓣膜结构（图 3A），从而能准确判断瓣膜是否正常。 图 3A 正常二尖瓣：上图为二维超声心动图，下图为 3D TEE. （1）二尖瓣反流. 二尖瓣反流可分为器质性及功能性两种类型，前者常由退行性病变所致，如瓣膜脱垂或连枷样瓣膜，治疗时须了解病变的确切位置与几何形态。 传统二维超声需多 …

Advanced imaging modalities are becoming more widely available in veterinary cardiology, including the use of transesophageal echocardiography (TEE) during occlusion of patent ductus arteriosus (PDA) in dogs. The dog in this report had a complex history of attempted ligation and a large PDA that ini …