Results 271 to 280 of about 12,462,965 (294)
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Three‐Dimensional Echocardiography of the Atrial Septum
Echocardiography, 2001This article details the important contribution of three‐dimensional echocardiography for catheterization device closure of secundum atrial septal defects. Aspects presented include three‐dimensional echocardiographic application in preselection of patients and in selection of the type and size of the atrial septal occluder devices.
G R, Marx +3 more
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Three-dimensional and four-dimensional echocardiography
Ultrasound in Medicine & Biology, 1994Since its introduction in 1974, 3-D reconstruction of the heart has undergone significant technological refinements in image acquisition, processing and display techniques. Image acquisition for transthoracic 3-D reconstruction utilizes the parasternal or apical windows, or combinations of the two.
E O, Ofili, N C, Nanda
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Sparse Registration for Three-Dimensional Stress Echocardiography
IEEE Transactions on Medical Imaging, 2008Three-dimensional (3-D) stress echocardiography is a novel technique for diagnosing cardiac dysfunction. It involves evaluating wall motion of the left ventricle, by visually analyzing ultrasound images obtained in rest and in different stages of stress. Since the acquisitions are performed minutes apart, variabilities may exist in the visualized cross-
K. Y. Esther Leung +10 more
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Three‐Dimensional Transesophageal Echocardiography of Aortic Atherosclerosis
Echocardiography, 2012Mini‐AbstractWe present a 75‐year‐old woman with symptomatic severe aortic stenosis who underwent transesophageal echocardiography (TOE) as part of the routine examinations before scheduling transcatheter aortic valve implantation. The examination identified, in addition to severe calcific aortic stenosis, intimal thickening of the ascending aorta ...
Kocabay, Gonenc +4 more
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Three-Dimensional Echocardiography in Clinical Practice
2010The heart has a complex anatomy and it is in constant motion. Conventional two-dimensional (2D) echocardiography can only provide partial information about the spatial and temporal relationship of cardiac structures during the cardiac cycle (Fig. 4.1). Furthermore, conventional 2D echocardiography requires a difficult mental process by the operator to ...
Badano, L, Muraru, D
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Three-dimensional echocardiography.
American journal of cardiac imaging, 1993Lack of spatial registration of imaging transducers is a major technical limitation of two-dimensional (2-D) echocardiography. Volume scanning of the heart, or three-dimensional (3-D) echocardiography, is achieved by using a 3-D spatial registration device with a conventional 2-D scanner, or by using a high speed, phased-array real-time scanner. Three-
D L, King +4 more
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Dynamic Three-Dimensional Echocardiography
Japanese Journal of Applied Physics, 2000Conventional three-dimensional (3D) ultrasound imaging equipment for diagnosis requires much time to reconstruct 3D images or fix the view point for observing the 3D image. Thus, it is inconvenient for cardiac diagnosis. In this paper, we propose a new dynamic 3D echocardiography system.
Katsuhiko Matsusaka Katsuhiko Matsusaka +3 more
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Examination Protocol for Three‐Dimensional Echocardiography
Echocardiography, 2004Nanda, NC +6 more
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Three-dimensional Echocardiography
Cardiology in Review, 1995Peter M. Sapin +5 more
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Phase-pure two-dimensional layered perovskite thin films
Nature Reviews Materials, 2023Hao Gu, Yonghua Chen, Xia Junmin
exaly