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Automatic Detection of Left Ventricle in Echocardiographic Sequences using Radial Search and Temporal Smoothing
2007
2007 15th International Conference on Digital Signal Processing
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Geiser,“Automatic Center Point De-
Papillary Muscle ±4mm ±2mm termination In Two-Dimensional Short-Axis echocardiographic ...
This is valid for the short axis echocardiographic views
under consideration in this paper. ...
doi:10.1109/icdsp.2007.4288538
fatcat:54oqhhtspfbm7ifeop7wjpduba
Three-dimensional echocardiography. In vivo validation for left ventricular volume and function
1993
Circulation
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We have developed a three-dimensional system that automatically integrates two-dimensional echocardiographic images and their positions in real time and calculates left ventricular volume directly from ...
Current two-dimensional quantitative echocardiographic methods of volume assessment require image acquisition from standardized scanning planes. ...
parallel and equidistant short-axis images. ...
doi:10.1161/01.cir.88.4.1715
pmid:8403317
fatcat:qr4kwp6tonfvpbnk7uabo7i2va
Three-dimensional echocardiography: In vitro and in vivo validation of left ventricular mass and comparison with conventional echocardiographic methods
1994
Journal of the American College of Cardiology
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Columbia University, for their assistance in the in vitro studies, and Richard Rigling for his assistance in the MRI studies . The authors acknowledge Dr . Robert R. ...
Sciacca for his assistance in performing the statistical analysis . ...
Comparison of One-, Two-and Three-Dimensional Echocardiographic Mass Determination With Magnetic Resonance Imaging mass determination in vitro . ...
doi:10.1016/0735-1097(94)90310-7
pmid:8034889
fatcat:hh2baoyovnfrfejexq3bazecna
Automatic Cardiac Segmentation Using Triangle and Optical Flow
2017
Indonesian Journal of Electrical Engineering and Computer Science
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The first step is determining the initial center boundary. The second step is using Pre-processing to eliminate noise. ...
In this research, full automatic cardiac segmentation for cardiac diseases is presented. The technique used Initial Center Boundary, Pre-processing, Triangle Segmentation and Optical Flow. ...
However, we used echocardiographic short axis video in this research. ...
doi:10.11591/ijeecs.v8.i2.pp315-326
fatcat:xhtnbwcinfcxhnvhgcvrf4w4qy
AutoMPR: Automatic detection of standard planes in 3D echocardiography
2008
2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro
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3D echocardiography is one of the emerging real-time imaging modalities that is increasingly used in clinical practice to assess cardiac function. ...
We propose an automated supervised learning method to detect standard multiplanar reformatted planes (MPRs) from a 3D echocardiographic volume. ...
(4) SAXB: short axis basal plane; (5) SAXM: short axis middle plane; (6) SAXA: short axis apex plane. ...
doi:10.1109/isbi.2008.4541237
dblp:conf/isbi/LuGZOC08
fatcat:kvsqtowkuvfqnouqqaqpdkbn7q
Apex to Base Left Ventricular Twist Mechanics Computed from High Frame Rate Two-Dimensional and Three-Dimensional Echocardiography: A Comparison Study
2012
Journal of the American Society of Echocardiography
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Full-volume 3D image loops were analyzed online with Toshiba Wall Motion Tracking software, and short-axis 2D images were analyzed offline for LV rotation in GE EchoPAC PC at corresponding LV levels. ...
Background-The aim of this study was to compare two-dimensional (2D) and threedimensional (3D) methods for computing left ventricular (LV) rotation. ...
With the introduction of digital tracking of speckles in ultrasound image loops, high-frame rate two-dimensional (2D) echocardiography was tested for the computation of LV twist from short-axis (SAX) views ...
doi:10.1016/j.echo.2011.09.001
pmid:21995883
pmcid:PMC3321829
fatcat:wfh6357xw5afpdgyicjaloqb5u
Comparison of two- and three-dimensional echocardiography with cineventriculography for measurement of left ventricular volume in patients
1994
Journal of the American College of Cardiology
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However, most studies comparing cineventriculography and two-dimensional echocardiography have reported impor-Fmn th Din ...
Two-dimensional eehocardiography is noninvasive, safe, comparatively inexpensive and allows serial performance of left ventricular volume measurements. ...
line short-axis images is -10 min. In addition, tracing those images requires -1 min per boundary, thus lengthening examination and analysis time -20 min. ...
doi:10.1016/0735-1097(94)90869-9
pmid:7930197
fatcat:smextywjtjga5gogu5jvugs6v4
Three-dimensional echocardiography. Advances for measurement of ventricular volume and mass
1994
Hypertension
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Three-dimensional echocardiographic computation of ventricular volume and mass in healthy subjects was achieved with an accuracy comparable to magnetic resonance imaging and was superior to two-dimensional ...
Computer-aided three-dimensional reconstruction of the ventricle for ventricular volume from a series of 8 to 10 short-axis images also achieved more than a threefold improvement of interobserver variability ...
This line is computed and displayed as a white line in each image-the reference long-axis image and the short-axis real-time image. ...
doi:10.1161/01.hyp.23.1_suppl.i172
pmid:8282353
fatcat:6cbnsij73jexlhk5m6ndpogqiy
Left ventricular volume and endocardial surface area by three-dimensional echocardiography: Comparison with two-dimensional echocardiography and nuclear magnetic resonance imaging in normal subjects
1993
Journal of the American College of Cardiology
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determined by threedimensional echocardiography and nuclear magnetic resonance ( ) imaging were compared in 15 normal subjects (7 men, 8 women, aged 23 to 41 years, body surface area 1.38 to 2.17 m'). ...
Six to eight nonparallel, unequally spaced, nonintersecting short-axis planes were p&tioned with a line of intersection display to overcome limitations associated with twoqdimensional echocard ~~kg~u~. ...
Figure 1 . 1 Three-dimensional echocardiographic method of ventricular volume and surface area determination from unequally spaced, nonparallel, nonintersecting short-axis cross sections. ...
doi:10.1016/0735-1097(93)90842-o
pmid:8509549
fatcat:rhdlzabwe5boxblkvmulchte5u
Automatic Computation of Left Ventricular Volume Changes Over a Cardiac Cycle from Echocardiography Images by Nonlinear Dimensionality Reduction
2014
Journal of digital imaging
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This paper introduces a new automatic method, based on nonlinear dimensionality reduction (NLDR) for extracting the curve of the LV volume changes over a cardiac cycle from two-dimensional (2-D) echocardiography ...
In this study, a modified version of Isomap algorithm, where image to image distance metric is computed using nonrigid registration, is applied on 2-D echocardiography images of one cycle of heart. ...
in high dimensional space map to nearby and far points in low dimensional space [17] . ...
doi:10.1007/s10278-014-9722-z
pmid:25059548
pmcid:PMC4305052
fatcat:ddxmtynmlzce7drnh7o5vqo3uq
Feasibility of In Vivo Human Aortic Valve Modeling Using Real-Time Three-Dimensional Echocardiography
2014
Annals of Thoracic Surgery
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Noninvasive three-dimensional (3D) imaging and modeling may assist in patient selection and operative planning. ...
Root diameters (measured in three locations) by 3D model inspection and two-dimensional echocardiography measurement correlated (R2=0.75). ...
of the aortic valve (AV) leaflets has been generally accomplished with standard two-dimensional (2D) echocardiographic techniques. ...
doi:10.1016/j.athoracsur.2013.12.017
pmid:24518577
pmcid:PMC3975669
fatcat:6vaewcywljhyvkjo2twu4ogeoq
Nearly automated left ventricular long axis tracking on real time three-dimensional echocardiographic data
2005
Computers in Cardiology, 2005
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The measurement of left ventricular (LV) long axis length (LAL) is an integral part of echocardiographic evaluation of LV volume, the most important determinant of LV systolic function. ...
LAL measurements from 2D echocardiography (2DE) are highly dependent on the ability to obtain non-foreshortened LV images. ...
Acknowledgements The authors thank Roberto Lang, MD, Victor Mor-Avi, PhD and Lynn Weinert, BS, of the Noninvasive Cardiac Imaging Laboratories, University of Chicago Medical Center, for their invaluable ...
doi:10.1109/cic.2005.1588018
fatcat:gqoig3fyrbfwfdlv2qnjkswtsa
Freehand Three-Dimensional Echocardiography for Measurement of Left Ventricular Mass: In Vivo Anatomic Validation Using Explanted Human Hearts
1997
Journal of the American College of Cardiology
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Left ventricular mass was determined by the M-mode ("Penn-cube") method, the two-dimensional truncated ellipsoid method and three-dimensional surface reconstruction. ...
Freehand three-dimensional echocardiography eliminates geometric assumptions used by conventional methods, minimizes image positioning errors using a line of intersection display and increases sampling ...
The display is made up of two images-a parasternal long-axis reference image and the roughly orthogonal real-time short-axis data image. ...
doi:10.1016/s0735-1097(97)00198-8
pmid:9283544
fatcat:qr736uaebjgsfjmsmjaki64gpy
Computer-aided recognition of a four-chamber image plane in three-dimensional echocardiographic images of children
2008
Journal of Electronic Imaging (JEI)
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Automated detection of the clinically relevant image planes in a three-dimensional echocardiographic (3-DE) data set has potential applications for diagnosis of pediatric congenital heart disease. ...
We propose a method based on template matching to automatically detect the four-chamber image plane (4CIP) in a 3-DE data set. First, a normal four-chamber image is chosen as the template. ...
With the detected 4CIP, it is easier to find the short-axis and long-axis image planes in the data sets. ...
doi:10.1117/1.2956009
fatcat:y67rmpodavbqleunvlath2k2py
Validation of a computerized edge detection algorithm for quantitative two-dimensional echocardiography
1983
Circulation
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IMPROVEMENTS in two-dimensional echocardiographic (2DE) imaging systems have made this noninvasive diagnostic technique more suitable for quantitative analysis of cardiac function. ...
The operation results basically in a two-dimensional discrete second derivative of the original image (figure 2, C). ...
doi:10.1161/01.cir.68.5.1127
pmid:6616792
fatcat:fmqbhpzuzjcnjded6hjqr6rqiy
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