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Segmentation of Abdominal Aortic Aneurysms in CT Images Using a Radial Model Approach [chapter]

Iván Macía, Jon Haitz Legarreta, Céline Paloc, Manuel Graña, Josu Maiora, Guillermo García, Mariano de Blas
2009 Lecture Notes in Computer Science  
Here we describe the initial results of a novel model-based approach for the semiautomatic segmentation of both the lumen and the thrombus of AAAs, using radial functions constrained by a priori knowledge  ...  Abdominal Aortic Aneurysm (AAA) is a dangerous condition where the weakening of the aortic wall leads to its deformation and the generation of a thrombus.  ...  We also thank the companies Bilbomatica and eMedica for their participation in this work.  ... 
doi:10.1007/978-3-642-04394-9_81 fatcat:v4nxqzubr5a43lk7drbo75d4sq

Detection and visualization of endoleaks in CT data for monitoring of thoracic and abdominal aortic aneurysm stents

J. Lu, J. Egger, A. Wimmer, S. Großkopf, B. Freisleben, Michael I. Miga, Kevin R. Cleary
2008 Medical Imaging 2008: Visualization, Image-guided Procedures, and Modeling  
In this paper we present an efficient algorithm for the segmentation of the inner and outer boundary of thoratic and abdominal aortic aneurysms (TAA & AAA) in computed tomography angiography (CTA) acquisitions  ...  The aneurysm segmentation includes two steps: first, the inner boundary is segmented based on a grey level model with two thresholds; then, an adapted active contour model approach is applied to the more  ...  Among these diseases, abdominal aortic aneurysm (AAA) is the 13th leading cause of death in the western world.  ... 
doi:10.1117/12.769414 dblp:conf/miigp/LuEWGF08 fatcat:mmtvxjchvvdu7puru3kx2kzcly

Virtual Stent Grafting in Personalized Surgical Planning for Treatment of Aortic Aneurysms Using Image-Based Computational Fluid Dynamics [chapter]

Guanglei Xiong, Charles A. Taylor
2010 Lecture Notes in Computer Science  
Our approach enables prospective model construction and may help to increase its throughput required by routine clinical uses in the future.  ...  We demonstrate the application of our methods to quantify wall shear stresses and forces acting on stent grafts in personalized surgical planning for endovascular treatment of thoracic and abdominal aortic  ...  Virtual Stent Grafting for Abdominal Aortic Aneurysm In case of abdominal aortic aneurysm, the stent graft may be in Y shape as shown in Fig. 2(b) .  ... 
doi:10.1007/978-3-642-15711-0_47 fatcat:ghk4eucaqbgwpoqdnwy725ezpm

Contemporary Role of Computational Analysis in Endovascular Treatment for Thoracic Aortic Disease

Guido H.W. van Bogerijen, Jip L. Tolenaar, Michele Conti, Ferdinando Auricchio, Francesco Secchi, Francesco Sardanelli, Frans L. Moll, Joost A. van Herwaarden, Vincenzo Rampoldi, Santi Trimarchi
2013 Aorta  
Different techniques of medical imaging, like computed tomography or magnetic resonance imaging, can be used to evaluate dynamics in the thoracic aorta.  ...  In this context, a quantitative assessment of the biomechanical stress induced in the aortic wall due to the stent graft may support the planning of the procedure.  ...  [27] virtually deployed a bifurcated stent graft in an abdominal aortic aneurysm (AAA) model, using FEA, validating the simulation outcomes with respect to in vitro placement of the device in a silicone  ... 
doi:10.12945/j.aorta.2013.13-003 pmid:26798690 pmcid:PMC4682739 fatcat:trctgopdgfcgxe24pvaua4ph74

Semi-automatic abdominal aortic aneurysms geometry assessment based on 3D ultrasound

Laurence Rouet, Roberto Ardon, Jean-Michel Rouet, Benoit Mory, Cecile Dufour, Anne Long
2010 2010 IEEE International Ultrasonics Symposium  
This paper presents a new approach for improving the surveillance of the size of abdominal aortic aneurysms (AAA).  ...  Quantification parameters are defined to characterize the aneurysm with more accuracy. Volume imaging also provides 3D visualization of the AAA geometry and CT-like multi-planar reconstructions.  ...  INTRODUCTION Abdominal aortic aneurysm (AAA) is clinically defined as a local enlargement of the aorta of more than 50% with a loss of walls parallelism.  ... 
doi:10.1109/ultsym.2010.5935590 fatcat:znjgbbpqzfgixexutayclfianq

Patient Specific Wall Stress Analysis and Mechanical Characterization of Abdominal Aortic Aneurysms Using 4D Ultrasound

E.M.J. van Disseldorp, N.J. Petterson, M.C.M. Rutten, F.N. van de Vosse, M.R.H.M. van Sambeek, R.G.P. Lopata
2016 European Journal of Vascular and Endovascular Surgery  
WHAT THIS PAPER ADDS Wall stress analysis of abdominal aortic aneurysms (AAAs) using 4D ultrasound (US) is a promising technique to improve rupture risk stratification.  ...  Objectives: The aim of this study was to perform wall stress analysis (WSA) using 4D ultrasound (US) in 40 patients with an abdominal aortic aneurysm (AAA).  ...  A sagittal (A) and coronal (B) view of the automatically segmented wall (blue) of an abdominal aortic aneurysm (AAA) in computed tomography data.  ... 
doi:10.1016/j.ejvs.2016.07.088 pmid:27665991 fatcat:amt6mzyrf5fyrlexioveoev3fa

Outer Wall Segmentation of Abdominal Aortic Aneurysm by Variable Neighborhood Search Through Intensity and Gradient Spaces

Thanongchai Siriapisith, Worapan Kusakunniran, Peter Haddawy
2018 Journal of digital imaging  
However, automatic segmentation of aortic aneurysm is difficult due to high pixel similarity to adjacent tissue and a lack of color information in the medical image, preventing previous work from being  ...  Aortic aneurysm segmentation remains a challenge. Manual segmentation is a time-consuming process which is not practical for routine use.  ...  of Bremen.  ... 
doi:10.1007/s10278-018-0049-z pmid:29352385 fatcat:qgilr4q5czftplkkjivhpqgcui

Three-dimensional shape reconstruction of abdominal aortic aneurysm

Mun-Bo Shim, Murat Gunay, Kenji Shimada
2009 Computer-Aided Design  
This paper presents an effective computational technique for reconstructing a three-dimensional shape of an abdominal aortic aneurysm (AAA), from a limited number of computed tomography (CT) images.  ...  The geometric continuity of a deformed model is maintained by raising the order of the polynomial function used in EFFD.  ...  Problem statement and technical approach The problem of three-dimensional shape reconstruction of an abdominal aortic aneurysm (AAA) can be stated as follows: Given: • CT images of an abdominal aortic  ... 
doi:10.1016/j.cad.2007.10.006 fatcat:ftijx4pxnnd6bafcngl5rgex2y

Murine ultrasound imaging for circumferential strain analyses in the angiotensin II abdominal aortic aneurysm model

John T. Favreau, Binh T. Nguyen, Ian Gao, Peng Yu, Ming Tao, Jacob Schneiderman, Glenn R. Gaudette, C. Keith Ozaki
2012 Journal of Vascular Surgery  
The current work combines a commonly used mouse model of aortic aneurysms, sophisticated ultrasonography, and special mathematical analyses to improve the utility of these tools for dissection of the mechanisms  ...  Objective: The underlying causes of abdominal aortic aneurysms (AAAs) remain obscure, although research tools such as the angiotensin II (Ang II) apolipoprotein E-deficient (apoE ؊/؊ ) mouse model have  ...  AUTHOR CONTRIBUTIONS Conception Fig 1 . 1 Segments of interest analyzed in the thoracic and abdominal aorta. Celiac trunk (CT), superior mesenteric artery (SMA), and renal arteries (RAs).  ... 
doi:10.1016/j.jvs.2012.01.056 pmid:22503226 pmcid:PMC3581859 fatcat:g2quu3taxnfq3c4w2yatuno2la

2D FSI determination of mechanical stresses on aneurismal walls

Natalia Veshkina, Ireneusz Zbicinski, Ludomir Stefańczyk
2014 Bio-medical materials and engineering  
In this study, a fluid-structure interaction analysis based on the application of patient-specific mechanical parameters of the aneurismal walls was carried out to predict the rupture side during an abdominal  ...  aortic aneurysm (AAA).  ...  Fig. 1 . 1 The patient-specific abdominal aortic aneurysm model obtained from a CT image: (a) an oblique sagittal view; (b) a transaxial view; (c) and (d) the reconstructed geometry.  ... 
doi:10.3233/bme-141066 pmid:25226953 fatcat:julgucvuurasleatvgq77v7ch4

The Role of Geometric and Biomechanical Factors in Abdominal Aortic Aneurysm Rupture Risk Assessment

Samarth S. Raut, Santanu Chandra, Judy Shum, Ender A. Finol
2013 Annals of Biomedical Engineering  
The current clinical management of abdominal aortic aneurysm (AAA) disease is based to a great extent on measuring the aneurysm maximum diameter to decide when timely intervention is required.  ...  group in aneurysm modeling and rupture risk assessment.  ...  The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. We are also thankful to Dr.  ... 
doi:10.1007/s10439-013-0786-6 pmid:23508633 pmcid:PMC3679219 fatcat:qr6cmxqedveo5krpwen65jbnpq

Partial Aortic Occlusion using Resuscitative Endovascular Balloon Occlusion of the Aorta (P-REBOA) in Ruptured Abdominal Aortic Aneurysm

Fareed Cheema, Aksim Rivera, Amit Shah, Sheldon Teperman, Melvin E. Stone, Edward Chao
2019 Journal of Endovascular Resuscitation and Trauma Management  
We report a case of a ruptured abdominal aortic aneurysm managed with partially occlusive resuscitative endovascular balloon occlusion of the aorta (P-REBOA) as a means to gain proximal control, tailor  ...  Ruptured abdominal aortic aneurysm is often a fatal event without immediate intervention for the associated hemorrhagic shock and impending cardiovascular collapse.  ...  Computed tomography (CT) imaging confirmed a 9.6 cm ruptured aortic aneurysm with active bleeding into the retroperitoneum (Figure 1 ).  ... 
doi:10.26676/jevtm.v3i2.87 fatcat:6bzkl5rqk5a7nonwohdfix2hma

Predictive Numerical Simulations of Double Branch Stent-Graft Deployment in an Aortic Arch Aneurysm [article]

L. Derycke, D. Perrin, F. Cochennec, J.-N. Albertini, S. Avril
2019 arXiv   pre-print
A patient-specific case is performed with complete deployment of the DB and its bridging stents in an aneurysmal aortic arch.  ...  Total endovascular repair of the aortic arch represents a promising option for patients ineligible to open surgery.  ...  Acknowledgement The authors would like to thank Samuel Arbefeuille, Scott Rush and Christian Fletcher from Terumo Aortic® (formerly Bolton Medical®) for their help and support in this study.  ... 
arXiv:1902.03007v1 fatcat:j7v6eggt7ra2xaysapexifmuwa

MRI using ultrasmall superparamagnetic particles of iron oxide in patients under surveillance for abdominal aortic aneurysms to predict rupture or surgical repair: MRI for abdominal aortic aneurysms to predict rupture or surgery—the MA3RS study

Olivia M B McBride, Colin Berry, Paul Burns, Roderick T A Chalmers, Barry Doyle, Rachael Forsythe, O James Garden, Kirsteen Goodman, Catriona Graham, Peter Hoskins, Richard Holdsworth, Thomas J MacGillivray (+10 others)
2015 Open Heart  
Ethics approval East of Scotland Research Ethics Committee (A). Provenance and peer review Not commissioned; externally peer reviewed. Data sharing statement No additional data are available.  ...  upon this work noncommercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.  ...  To detect the thrombus and complete the segmentation, we will use a 3D deformable model approach that utilises the level set algorithm as well as modelling the thrombus contour as a radial function starting  ... 
doi:10.1136/openhrt-2014-000190 pmid:25932334 pmcid:PMC4410138 fatcat:mnw2phzq4rakxbtz7ees5f6oeq

AN iterative model-constrained graph-cut algorithm for Abdominal Aortic Aneurysm thrombus segmentation

Moti Freiman, Steven J. Esses, Leo Joskowicz, Jacob Sosna
2010 2010 IEEE International Symposium on Biomedical Imaging: From Nano to Macro  
We present an iterative model-constrained graph-cut algorithm for the segmentation of Abdominal Aortic Aneurysm (AAA) thrombus.  ...  Experimental results on 8 AAA CTA datasets yield robust segmentations of the AAA thrombus in 2 mins computer time with a mean absolute volume difference of 8.0% and mean volumetric overlap error of 12.9%  ...  INTRODUCTION Abdominal Aortic Aneurysms (AAA) are a common and dangerous condition of the endovascular system.  ... 
doi:10.1109/isbi.2010.5490085 dblp:conf/isbi/FreimanEJS10 fatcat:rxaqix6akndqbig7r7k44oeaq4
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