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Segmentation of Cardiac Structures Simultaneously from Short- and Long-Axis MR Images [chapter]

Juha Koikkalainen, Mika Pollari, Jyrki Lötjönen, Sari Kivistö, Kirsi Lauerma
2004 Lecture Notes in Computer Science  
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

Yunliang Cai, Ali Islam, Mousumi Bhaduri, Ian Chan, Shuo Li
2016 IEEE Transactions on Medical Imaging  
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]

Sana Jabbar, Syed Talha Bukhari, Hassan Mohy-ud-Din
2021 arXiv   pre-print
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

Eun-jung Kong, Sang-hee Lee, Ihn-ho Cho
2013 Nuclear medicine and molecular imaging  
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]

Haiyan Wang, Wenzhe Shi, Xiahai Zhuang, Simon Duckett, KaiPin Tung, Philip Edwards, Reza Razavi, Sebastien Ourselin, Daniel Rueckert
2012 Lecture Notes in Computer Science  
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]

J. Lötjönen, D. Smutek, S. Kivistö, K. Lauerma
2003 Lecture Notes in Computer Science  
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]

Nikoo R. Saber, A. D. Gosman
2008 Repair and Redesign of Physiological Systems  
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

Victor Chien-Chia Wu, Masaaki Takeuchi
2017 Acta Cardiologica Sinica  
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

Charlotte Buchanan, Azharuddin Mohammed, Eleanor Cox, Katrin Köhler, Bernard Canaud, Maarten W. Taal, Nicholas M. Selby, Susan Francis, Chris W. McIntyre
2016 Journal of the American Society of Nephrology  
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]

Wufeng Xue, Ilanit Ben Nachum, Sachin Pandey, James Warrington, Stephanie Leung, Shuo Li
2017 Lecture Notes in Computer Science  
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]

Jyrki Lötjönen, Mika Pollari, Sari Kivistö, Kirsi Lauerma
2004 Lecture Notes in Computer Science  
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

Jun-ichi Suzuki, Ryozo Nagai, Jun-ichi Nishikawa, Kuni Ohotomo, Teruhiko Toyo-oka, Masao Omata
2000 Japanese Heart Journal  
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

O. Ratib, R. Nkoulou
2014 Journal of Nuclear Medicine  
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

Yinbo Li, Christopher D. Garson, Yaqin Xu, Brent A. French, John A. Hossack
2008 Ultrasound in Medicine and Biology  
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

David M. Naeger, Spencer C. Behr
2015 Magnetic Resonance Imaging Clinics of North America  
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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