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Nonrigid registration with corresponding points constraint for automatic segmentation of cardiac DSCT images
2017
BioMedical Engineering OnLine
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The work described in this paper was partially supported by a grant from the Research Grants Council of the Hong Kong Special Administra- ...
Lan for their help on cardiac anatomical knowledge and manual segmentation. ...
[8] presented a 3-D active shape model for semi-automatic segmentation of cardiac CT and MR volumes. A fuzzy c-means based fuzzy inference system was incorporated into the model. ...
doi:10.1186/s12938-017-0323-1
pmid:28351368
pmcid:PMC5370472
fatcat:s7fn53pspncnrgujmchwgeczqq
Accuracy and usefulness of fusion imaging between three-dimensional coronary sinus and coronary veins computed tomographic images with projection images obtained using fluoroscopy
2009
Europace
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A transformation to align their projections seen on fluoroscopy with each respective structure segmented in the 3D-CT model was applied. ...
register the 3D CT model with the fluoroscopy images. ...
Funding The Cardiocentro Ticino has received a research grant from GE. ...
doi:10.1093/europace/eup237
pmid:19726445
fatcat:2xcurma72vb5rkkxq7h73idjly
Cardiac left atrium CT image segmentation for ablation guidance
2010
2010 IEEE International Symposium on Biomedical Imaging: From Nano to Macro
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It includes both endocardial and epicardial atrial wall segmentation on CT image data. Segmentation is based on active contours, Otsu's multiple threshold method and hysteresis thresholding. ...
Segmentation results were compared to contours manually drawn by two experts, using repeated measures analysis of variance. ...
The images were acquired with a CT angiography (CTA) protocol and thus not specifically made for analyzing the left atrium. ...
doi:10.1109/isbi.2010.5490304
dblp:conf/isbi/KoppertRPRA10
fatcat:lt7jtorvjneetawtw3ibts2kpu
Evaluation of 3D guided electroanatomic mapping for ablation of atrial fibrillation in reference to CT-Scan image integration
2008
Journal of interventional cardiac electrophysiology
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This study investigates whether this postulation is accurate using CT scan image integration. ...
Anatomical guided atrial fibrillation (AF) catheter ablation relies on the assumption that the left atrium reconstruction anatomy (LARA) using a 3D mapping system precisely matches the patient's CT scan ...
This study investigates whether this postulation is accurate using CT scan image integration. ...
doi:10.1007/s10840-008-9300-8
pmid:18821007
fatcat:2sbxi6ecuzevbc7exzeu3x7wvm
Computer Vision Techniques for Transcatheter Intervention
2015
IEEE Journal of Translational Engineering in Health and Medicine
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In all the phases (preoperative, intraoperative, and postoperative) during the transcatheter intervention procedure, computer vision techniques (e.g., image segmentation and motion tracking) have been ...
In this paper, we present a systematical review on these state-of-the-art methods. ...
FIGURE 27 . 27 Segmentation of ventricle borders in cardiac MRI images.
FIGURE 28 . 28 Extraction of atrium contours in a large CT volume. ...
doi:10.1109/jtehm.2015.2446988
pmid:27170893
pmcid:PMC4848047
fatcat:kgkprfayx5arxbyacbubjrbbhy
Accurate Segmentation of the Left Ventricle in Computed Tomography Images for Local Wall Thickness Assessment
[chapter]
2010
Lecture Notes in Computer Science
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In recent years, the fully automatic segmentation of the whole heart from three-dimensional (3D) CT or MR images has become feasible with mean surface accuracies in the order of 1mm. ...
The percentage of local outliers with segmentation errors > 2mm is reduced by a factor of 3 as compared to a previously published approach. ...
D converts the percentage p into a distance
Model for Accurate LV Segmentation
Reference Segmentations and Shape Model Segmentations of 67 image volumes from 33 patients at different cardiac phases ...
doi:10.1007/978-3-642-15705-9_49
fatcat:bwkdi4hasffb3nj25a62232doe
Intra-operative Volume Imaging of the Left Atrium and Pulmonary Veins with Rotational X-Ray Angiography
[chapter]
2006
Lecture Notes in Computer Science
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We present a novel application of contrast-enhanced rotational X-ray imaging for CT-like reconstruction of 3D LAPV anatomy during the intervention itself. ...
Complex electrophysiology (EP) procedures, such as catheter-based ablation in the left atrium and pulmonary veins (LAPV) for treatment of atrial fibrillation, require knowledge of heart chamber anatomy ...
Finally, improvements in segmentation tools for automated surface model extraction will be explored. ...
doi:10.1007/11866565_74
fatcat:wxeqatqfpzgcxmjit7wxgbi24q
Towards automatic full heart segmentation in computed-tomography images
2005
Computers in Cardiology, 2005
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We present a robust, fast and fully automatic approach enabling the segmentation of the main anatomical structures of the heart in CT images. ...
The proposed method is based on the adaptation of a 3D triangulated mesh to new unknown images exploiting simultaneously knowledge of organ shape and typical gray level appearance in images, both learned ...
Discussion and conclusions In this article, we introduced a model-based approach to automatically and robustly segment the heart in CT images. ...
doi:10.1109/cic.2005.1588077
fatcat:6dfp5dd26jhnxjfgwok24utpna
Nonrigid Registration Regularized by Shape Information: Application to Atlas Construction of Cardiac CT Images
2015
PLoS ONE
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In this paper, we propose a new nonrigid registration algorithm incorporating shape information, to produce comprehensive atlases. ...
Additionally, the shape information of multiple-objects in images is incorporated into the cost function for registration. ...
Manual segmentations of AO(Aorta), LV(Left Ventricle), LVM(Left Ventricle Myocardium), LA(Left Atrium), RV(Right Ventricle)
Fig 3 . 3 Manual segmentation results of registration images. doi:10.1371/journal.pone ...
doi:10.1371/journal.pone.0130730
pmid:26111054
pmcid:PMC4482436
fatcat:lidhtkl63zbmlmxhpeus4qoxea
A knowledge-based cone-beam x-ray CT algorithm for dynamic volumetric cardiac imaging
2002
Medical Physics (Lancaster)
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In this paper, we develop a knowledge-based spiral/ helical multislice/cone-beam CT approach for dynamic volumetric cardiac imaging. ...
The higher speed, thinner slice, and wider coverage with multislice/conebeam CT indicate a great potential for dynamic volumetric imaging, with cardiac CT studies being the primary example. ...
ACKNOWLEDGMENTS This work was supported in part by grants from the Philips Medical Systems, the National Institutes of Health ...
doi:10.1118/1.1494989
pmid:12201428
fatcat:o2tew3pr6rgjvgjarf2higo4b4
Automated MSCT Analysis for Planning Left Atrial Appendage Occlusion Using Artificial Intelligence
2022
Journal of interventional cardiology
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These models were used independently or in combination to detect the anatomical ostium, the landing zone, the mitral valve annulus, and the fossa ovalis and to segment the left atrium (LA) and left atrial ...
A fast and accurate AI-based workflow is proposed to automatically analyze MSCT images for planning LAAO. ...
Acknowledgments is study is part of a project that has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement no. 945698. ...
doi:10.1155/2022/5797431
pmid:35571991
pmcid:PMC9068333
fatcat:2vrqgvi6q5d63d7v4eatujhady
Benchmark for Algorithms Segmenting the Left Atrium From 3D CT and MRI Datasets
2015
IEEE Transactions on Medical Imaging
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Segmentation of the LA from Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) images is a complex problem. ...
This manuscript also reports the results of the Left Atrial Segmentation Challenge (LASC) carried out at the STACOM'13 workshop, in conjunction with MICCAI'13. ...
Blazevic for their very useful suggestions for the automatisation of the evaluation framework. ...
doi:10.1109/tmi.2015.2398818
pmid:25667349
fatcat:x6mkjar7cfdqfic6md5uzt2q6u
Image segmentation via adaptive K-mean clustering and knowledge-based morphological operations with biomedical applications
1998
IEEE Transactions on Image Processing
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This proposed technique has been successfully applied to a sequence of cardiac CT volumetric images to generate the volumes of left ventricle chambers at 16 consecutive temporal frames. ...
Image segmentation remains one of the major challenges in image analysis, since image analysis tasks are often constrained by how well previous segmentation is accomplished. ...
II. 3-D IMAGE DATA AND CARDIAC ANATOMY The 3-D image data used in this research are a sequence of CT volumetric images obtained from dynamic spatial reconstructor (DSR), a unique ultra-fast multislice ...
doi:10.1109/83.730379
pmid:18276234
fatcat:l2xtphfnxrhjddqvjt7yvetrdi
Computational Modeling of Cardiac Valve Function and Intervention
2014
Annual Review of Biomedical Engineering
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It is thus important to include accurate definitions of these structures and regional material properties in computational models. ...
Nonetheless, for modeling convenience, the leaflets are often treated as a single-layer, homogeneous material in computational models (3-13). ...
left atrium to obtain accurate MV flow fields. ...
doi:10.1146/annurev-bioeng-071813-104517
pmid:24819475
pmcid:PMC5481457
fatcat:6xm3pwmxqzf7fobw72snbdhfoq
Applications of MRI for diagnosis of cardiovascular diseases
1992
New Jersey medicine : the journal of the Medical Society of New Jersey
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Magnetic resonance imaging (MRI) acquires high spatial resolution images of the heart from any part of the cardiac cycle and in any planar configuration without use of contrast. ...
Sequential images through the cardiac cycle can be viewed as a cine. ...
sumptions regarding left ventricu- lar geometry.22 MRI has been shown to measure accurately left ventricular mass in the canine model using the gated spin-echo pulse sequence.” ...
pmid:1620490
fatcat:yy4t5ew3onha7bvf4m7hwddoyu
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