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Segmentation of Cardiac Structures Simultaneously from Short- and Long-Axis MR Images
[chapter]
2004
Lecture Notes in Computer Science
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We introduce a framework for the automatic segmentation of the ventricles, atria, and epicardium simultaneously from cardiac magnetic resonance (MR) volumes. ...
The basic idea is to utilize both shortaxis (SA) and long-axis (LA) MR volumes. Consequently, anatomical information is available from the whole heart volume. ...
Research was supported by Tekes, the National Technology Agency, Finland, the Finnish Cultural Foundation, and the Foundation for Advancement of Technical Sciences, Finland. ...
doi:10.1007/978-3-540-30135-6_52
fatcat:ulkrjq3zfzeajiwlembscdpqgu
Unsupervised Freeview Groupwise Cardiac Segmentation Using Synchronized Spectral Network
2016
IEEE Transactions on Medical Imaging
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The diagnosis, comparative and population study of cardiac radiology data require heart segmentation on increasingly large amount of images from different modalities/chambers/patients under various imaging ...
In this paper, we propose a general unsupervised groupwise segmentation: a direct simultaneous segmentation for a group of multi-modality, multichamber, multi-subject (M 3 ) cardiac images from a freely ...
Lotjonen et al [23] constructed a 3D statistical shape model of heart using images from both long-axis and short-axis views. ...
doi:10.1109/tmi.2016.2553153
pmid:27093546
fatcat:bybga3k4fnc6tnn4cyt7fryu7m
Multi-view SA-LA Net: A framework for simultaneous segmentation of RV on multi-view cardiac MR Images
[article]
2021
arXiv
pre-print
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We proposed a multi-view SA-LA model for simultaneous segmentation of RV on the short-axis (SA) and long-axis (LA) cardiac MR images. ...
of 8.1 mm on long-axis images. ...
Conclusion In this study, we proposed a multi-view SA-LA model (with LV context) for simultaneous segmentation of RV on short-axis and long-axis views. ...
arXiv:2110.00682v1
fatcat:2oy7ytmuhjfvjazr4kn3mrpfz4
Myocardial Fibrosis in Hypertrophic Cardiomyopathy Demonstrated by Integrated Cardiac F-18 FDG PET/MR
2013
Nuclear medicine and molecular imaging
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Cardiac MR (CMR) imaging is a key modality for evaluation of HCM. ...
We presented here the case of a 25-year-old male patient referred for simultaneous F-18 FDG cardiac PET/MR for the evaluation of septal hypertrophy. ...
short-axis images MR perfusion after Gd-contrast infusion and post-contrast LGE studies (Fig. 1) . ...
doi:10.1007/s13139-013-0201-0
pmid:24900107
pmcid:PMC4035195
fatcat:qpg5eekw4vdofmfcwanu4ku3hq
Automatic Cardiac Motion Tracking Using Both Untagged and 3D Tagged MR Images
[chapter]
2012
Lecture Notes in Computer Science
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We then integrate a valve plane tracker into the framework which uses short-axis and long-axis untagged MR images as well as 3D tagged images to estimate a fully four-dimensional motion field of the left ...
We present a fully automatic framework for cardiac motion tracking based on non-rigid image registration for the analysis of myocardial motion using both untagged and 3D tagged MR images. ...
both 3D tagged as well as untagged image sequences from short-axis and long-axis views simultaneously. ...
doi:10.1007/978-3-642-28326-0_5
fatcat:hcpkx7c3dfdh3a3qdlpsmol4jm
Tracking Atria and Ventricles Simultaneously from Cardiac Short- and Long-Axis MR Images
[chapter]
2003
Lecture Notes in Computer Science
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We propose a new approach for tracking the cardiac motion by using simultaneously short-axis and long-axis MR images in non-rigid registration. ...
The fusion of two image orientations allows to track more precisely the basal and apical movement of the ventricles. In addition, the motion of the atria is tracked. ...
In this paper, the non-rigid registration algorithm [9] was extended to track simultaneously short-axis (SA) and long-axis (LA) images. ...
doi:10.1007/978-3-540-39899-8_58
fatcat:gqwpwbiiizelxkevbxyszl6cfe
Computational modelling of left ventricular haemodynamics based on magnetic resonance imaging data
[chapter]
2008
Repair and Redesign of Physiological Systems
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An improved interactive segmentation technique for the long-and short-axis anatomical slices is used. ...
The research continues from earlier experience in modelling the human left ventricle using timevarying anatomical MR scans. ...
The cardiac MRI data was acquired at the Cardiovascular Magnetic Resonance Unit of the Royal Brompton Hospital; the help of Drs. David Firmin and Nigel Wood is gratefully acknowledged. ...
doi:10.2495/978-1-84564-096-5/03
fatcat:3ovbbrb4bvcyhdxd2llkzf2n6i
Three-Dimensional Echocardiography: Current Status and Real-Life Applications
2017
Acta Cardiologica Sinica
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Several important advantages of 3DE include eliminating geometric assumptions, quantifying complex geometric shape volumes, viewing structures from any perspective, assessing lesion in simultaneous multiplanes ...
The use of cardiac ultrasound is fundamental to the understanding of normal heart function and crucial to pathophysiological diagnosis. ...
Figure 7 . 7 Simultaneous display of multiplane by 3D echocardiography. Top row, from left: parasternal long-axis, basal short-axis, mid short-axis views. ...
pmid:28344414
pmcid:PMC5364152
fatcat:dpolk33u5bedhhnk56rpjga4wq
Intradialytic Cardiac Magnetic Resonance Imaging to Assess Cardiovascular Responses in a Short-Term Trial of Hemodiafiltration and Hemodialysis
2016
Journal of the American Society of Nephrology
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We performed a fully comprehensive study of the cardiovascular effect of dialysis sessions using intradialytic cardiac magnetic resonance imaging (MRI) to examine the comparative acute effects of standard ...
All patients experienced some degree of segmental left ventricular dysfunction, with severity proportional to ultrafiltration rate and BP reduction. ...
ACKNOWLEDGMENTS The authors dedicate this study to the memory of our recently deceased friend and Chief Renal Technician, Paul Roome. ...
doi:10.1681/asn.2016060686
pmid:28122851
pmcid:PMC5373461
fatcat:luf27gio6jdhlfrgilk65v56oe
Direct Estimation of Regional Wall Thicknesses via Residual Recurrent Neural Network
[chapter]
2017
Lecture Notes in Computer Science
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No work has been devoted into direct estimation of RWT from cardiac MR images due to the diverse shapes and structures for various subjects and cardiac diseases, as well as the complex regional deformation ...
Accurate estimation of regional wall thicknesses (RWT) of left ventricular (LV) myocardium from cardiac MR sequences is of significant importance for identification and diagnosis of cardiac disease. ...
Fig. 1 : 1 require strong prior information and user interaction to obtain arXiv:1705.09728v1 [cs.CV] Illustration of RWT for short-axis view cardiac MR image. ...
doi:10.1007/978-3-319-59050-9_40
fatcat:slqjgqzohnfbxit4qooxvtfzwu
Correction of Movement Artifacts from 4-D Cardiac Short- and Long-Axis MR Data
[chapter]
2004
Lecture Notes in Computer Science
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In this study, an algorithm was developed to correct movement artifacts simultaneously from short-and long-axis MR cine series. ...
Typically a cardiac MR cine series consists of images over several time points but only from one spatial location. ...
This study was partly financed by a grant from Helsinki University Central Hospital Research Fund (T181032, TYH 2242), the Radiology Society of Finland, Pehr Oscar Klingendahl Foundation, BIOMEDICUM Helsinki ...
doi:10.1007/978-3-540-30136-3_50
fatcat:dnbokal6a5gx3ccpvsyhxtizee
Evaluation of the Heart with Magnetic Resonance Imaging
2000
Japanese Heart Journal
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After compensating for two kinds of motion artifacts caused by cardiac beating and respiration, cardiac magnetic resonance (MR) imaging is now feasible for the diagnosis of various cardiac diseases. ...
Taking cost-effectiveness into consideration, this paper reviews the experiences of preferable indications of cardiac MR imaging by demonstrating the characteristic preciseness and uniqueness that play ...
Figure 1B represents a cross sectional MR angiogram of the right coronary artery (segment 1) on imaging plane B. White arrowhead indicates short-axis image of coronary artery. ...
doi:10.1536/jhj.41.417
pmid:11041092
fatcat:6dcad5d4zzeixn4pduyowmnjba
Potential Applications of PET/MR Imaging in Cardiology
2014
Journal of Nuclear Medicine
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Although cardiac MR imaging has gained wider adoption for routine clinical applications, PET images remain the reference in many applications for which objective analysis of metabolic and physiologic parameters ...
Functional MR images and dynamic assessment of myocardial perfusion from transit of intravascular contrast medium can provide useful criteria for identifying areas of decreased myocardial perfusion or ...
HLA 5 horizontal long axis; VLA 5 vertical long axis; SA 5 short axis; RV 5 right ventricle. ...
doi:10.2967/jnumed.113.129262
pmid:24762626
fatcat:ykty6xjokrfcvhnyr5c3znn3py
High Frequency Ultrasound Imaging Detects Cardiac Dyssynchrony in Noninfarcted Regions of the Murine Left Ventricle Late After Reperfused Myocardial Infarction
2008
Ultrasound in Medicine and Biology
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Nine post-MI and six normal C57Bl/6 mice were studied in both short-and long-axis views. ...
Cardiac dyssynchrony in the left ventricles of murine hearts late (>= 28 days) after reperfused myocardial infarction (post-MI) was assessed using high frequency 30 MHz B-mode ultrasound imaging. ...
Acknowledgements This work is supported by NIH grants from NIBIB (EB001826), NCRR (RR022582) and NIH (HL058582). ...
doi:10.1016/j.ultrasmedbio.2007.12.009
pmid:18313202
pmcid:PMC2587444
fatcat:i647qsnakng6dhm25cb5s2gmyu
PET/MR Imaging
2015
Magnetic Resonance Imaging Clinics of North America
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PET and magnetic resonance (MR) imaging have each become essential tools in the workup and management of cardiac patients. ...
Cardiac indications are potentially a fruitful area for this new technology, given how important PET and MR imaging each are in the workup and management of various cardiac diseases. ...
Fig. 3 . 3 Viable myocardium: Short-axis (A) and vertical long-axis (B) images from resting Rb-82 PET (top rows) and [ 18 F] fluorodeoxyglucose (FDG) PET viability study (bottom rows) in a 56-year-old ...
doi:10.1016/j.mric.2014.09.006
pmid:25476678
fatcat:2cgkshzlnvdafmva5kfyowhtnu
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