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Dynamic three-dimensional echocardiography application value in the diagnosis and treatment of congenital heart disease

Author: XuDi
Tutor: LuFengXiang
School: Nanjing Medical University
Course: Internal Medicine
Keywords: Dynamic three-dimensional echocardiography Two-dimensional echocardiography By transesophageal echocardiography By transthoracic echocardiography Congenital heart disease Atrial septal defect Ventricular septal defect Transcatheter defect occlusion Amplatzer septal occluder Left ventricular volume Left ventricular angiography
CLC: R541.1
Type: Master's thesis
Year: 2003
Downloads: 126
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Abstract

Background: In recent years, rapid intervention techniques for congenital heart disease, especially atrial septal defect (ASD) transcatheter closure of ventricular septal defect (VSD) technology is gradually mature, there are currently septal defect trend preferred treatment. A comprehensive understanding of the structure of the heart, it will directly affect the efficacy of interventional treatment and prognosis. Echocardiography Figure cases screened in the preoperative, intraoperative guidance and monitoring, and postoperative evaluation of the implanted device and functional status has an irreplaceable role in other imaging technology transthoracic and (or) significant esophagus dimensional ultrasound (2DE) like the structure of the heart can be displayed, but due to the limitations of the acoustic window as well as the characteristics of the two-dimensional plane, is difficult to fully three-dimensional display septal defect morphology and the relationship with the adjacent cardiac structures, thereby grasp of the impact of preoperative surgical indications, intraoperative in occluder selection models as well as the efficacy of the occlusion. With the continuous advancement of computer technology, three-dimensional echocardiography the diagram (3DE) With the rapid development in the past two years, studies have shown that the dynamic three-dimensional echocardiography in cardiac structure within a cardiac cycle can be observed from different directions morphology, location, size, to the , spatial relationships, active, and the connection of the heart and great vessels. However, 3DE rarely reported in the value of the Amplatzer occluder interventional therapy. Objective: ① vitro cardiac specimens to establish a three-dimensional image reconstruction methods, explore a reasonable three-dimensional ultrasound optimization, to improve the efficiency of the three-dimensional reconstruction provides a methodological basis for the three-dimensional ultrasound. (2) assess the feasibility and accuracy of dimensional ultrasound determination of left ventricular volume. (3) assessment of congenital heart disease (ASD, VSD) the feasibility and accuracy of the three-dimensional reconstruction of patients with cardiac target structure, explore 2DE, 3DE value Amplatzer occluder interventional therapy. Method: 1. Netherlands, Philips produced carrying 3DE sampling package Sonos5500 ultrasound diagnostic system and multi-planar transthoracic ultrasound probe (Ttansthoracic Omniplailc, TTO), isolated people and (or) two-dimensional image of isolated pig heart specimens acquisition (sampling), in Echoveiw4.2 Tomtac workstation software for three-dimensional reconstruction of the original image, any cut in the function of the heart of the region of interest three-dimensional cutaway cutaway 3D image segmentation and understanding and display of three-dimensional images, the application software to show the head of Nanjing Medical University Doctoral Dissertation standard three-dimensional shape of the structure, control and physical specimens. L affect large and need to be manually adjusted or set sampling angle interval selection of three-dimensional reconstruction, image gain and the Tuya condensation, grayscale threshold and transparency of the villages as orthogonal trial with count five factors, each of set four levels. By L; orthogonal table before application the orthogonal design assistant * w3.0 version) to design a test schedule. By orthogonal test Russian master meter lose Deng-based, such as three-dimensional reconstruction efficiency, preferably within the shortest possible time to achieve the best information acquisition and 3D reconstruction programs. 3. Three-dimensional ultrasound reconstruction retired person C and isolated pig heart left ventricular cavity, and at the same time making a plaster model of the left ventricular cavity, and compared with the three-dimensional reconstruction of the three-dimensional shape of the heart chamber;, respectively, using a two-dimensional ultrasound, 3D ultrasound and C cavity plaster model off the left. . Chamber volume measurement, analysis of the correlation therebetween. 4. Intended in passing the catheter Amp t zer septal occluder atrial septal defect repair treatment and 3D ultrasound reconstruction secundum atrial septal defect in patients using two-dimensional, three-dimensional ultrasound measurement of atrial septal defect size with 4hN therapy atrial septal defect mouth X-ray image of the measured value and measurement board measured values ??into the tree analysis; application of three-dimensional ultrasound observation occluder anterior chamber intervals the position and shape of the defects of the mouth and around the organization structure of the morphology and postoperative occluder. 5. Select intends secundum atrial septal defect in patients with atrial septal defect repair treatments via catheter Amp t zer septal occluder 62 cases. H-dimensional ultrasound is used *) preoperative screening; the gallbladder) intraoperative transesophageal echocardiography guidance and monitoring occluder; m after review, observe the position of the occluder around the structure of the relationship, no residual shunt. WE TBB and balloon X-ray image H kinds of methods of measurement of atrial septal defect size measurements and compare. 6. Choose to be passing through the catheter migraine. . Sexual A ventricular septal occluder treatment of ventricular septal defect in 26 patients, two-dimensional ultrasound for m preoperative patients screening; Q) intraoperative occluder placement of guiding and monitoring; O) after review, the concept can blocking position around the structure of the relationship, with or without residual shunt. And two-dimensional ultrasound measurements left space septal defect diameter. . Ventricular angiography measured values ??were analyzed. 6 Nanjing Medical University PhD thesis. Passing through the the septal occluder catheter AInP t zer repair space septal defect treatment and three-dimensional ultrasound reconstruction of a successful waist patients with ventricular septal defect using two-dimensional, three-dimensional ultrasound measurement space septal defect size and subsistence-level with hN therapy ventricular septal The x-ray image measurement values ??were analyzed; application of the concept of three-dimensional ultrasound lying blocking form of ventricular septal defects of the mouth and around the organizational structure in the preoperative and postoperative occluder position and morphology. 8. Dynamic three-dimensional ultrasound echocardiography shot 18 underwent transcatheter Amp tzer septal occluder patch treatment of ventricular septal defect ventricular septal defect patients listen surgery before, immediately after and three days after left ventricular volume reconstruction, each three-dimensional reconstruction bribes Zhang late systolic LV volumes reconstruction determined the left ventricular end-diastolic volume OyEDV) and left ventricular end-systolic volume oyBSyh left empty ejection fraction ① The F) using the formula: EF

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CLC: > Medicine, health > Internal Medicine > Heart, blood vessels ( circulatory ) disease > Heart disease > Congenital heart disease
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