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Presented are two techniques that are designed to help streamline the discretization of complex vascular geometries within the numerical modeling process. The first method integrates multiple software tools into a single pipeline which can…

Fluid Dynamics · Physics 2025-12-05 Kevin Garner , Fotis Drakopoulos , Chander Sadasivan , Nikos Chrisochoides

Computational fluid dynamics is intensively used to deepen the understanding of aneurysm growth and rupture in the attempt to support physicians during therapy planning. Numerous studies have assumed fully-rigid vessel walls in their…

Fluid Dynamics · Physics 2023-08-17 Aurèle Goetz , Pablo Jeken Rico , Yves Chau , Jacques Sédat , Aurélien Larcher , Elie Hachem

Purpose: Developing and testing a framework that integrates real-time catheter shape reconstruction, interactive simulations, and mixed reality visualization to enable accurate monitoring of catheter-vessel interactions during endovascular…

Non-invasive and cost effective in nature, the echocardiogram allows for a comprehensive assessment of the cardiac musculature and valves. Despite progressive improvements over the decades, the rich temporally resolved data in…

Accurate identification and quantification of unruptured intracranial aneurysms (UIAs) is crucial for the risk assessment and treatment of this cerebrovascular disorder. Current 2D manual assessment on 3D magnetic resonance angiography…

Image and Video Processing · Electrical Eng. & Systems 2024-03-21 Amirhossein Rasoulian , Arash Harirpoush , Soorena Salari , Yiming Xiao

During the diagnosis of ischemic strokes, the Circle of Willis and its surrounding vessels are the arteries of interest. Their visualization in case of an acute stroke is often enabled by Computed Tomography Angiography (CTA). Still, the…

Image and Video Processing · Electrical Eng. & Systems 2022-04-27 Florian Thamm , Markus Jürgens , Oliver Taubmann , Aleksandra Thamm , Leonhard Rist , Hendrik Ditt , Andreas Maier

The two most important aneurysm types are cerebral aneurysms (CA) and abdominal aortic aneurysms (AAA), accounting together for over 80\% of all fatal aneurysm incidences. To minimise aneurysm related deaths, clinicians require various…

Implicit Neural Representations (INRs), characterized by neural network-encoded signed distance fields, provide a powerful means to represent complex geometries continuously and efficiently. While successful in computer vision and…

Computational Engineering, Finance, and Science · Computer Science 2025-07-09 Samundra Karki , Ming-Chen Hsu , Adarsh Krishnamurthy , Baskar Ganapathysubramanian

Accurate real-time buoyancy modeling is essential for high-fidelity Autonomous Underwater Vehicle (AUV) simulations, yet NVIDIA Isaac Sim lacks a native buoyancy system, requiring external solutions for precise underwater physics. This…

Robotics · Computer Science 2025-09-05 Ad-Deen Mahbub , Md Ragib Shaharear

Intracranial aneurysms are a commonly occurring and life-threatening condition, affecting approximately 3.2% of the general population. Consequently, detecting these aneurysms plays a crucial role in their management. Lesion detection…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Maysam Orouskhani , Negar Firoozeh , Shaojun Xia , Mahmud Mossa-Basha , Chengcheng Zhu

Numerous studies suggest that disturbed shear, causing endothelium dysfunction, can be related to neighboring vortex structures. With this motivation, this study presents a methodology to characterize the vortex structures. Precisely, we…

Fluid Dynamics · Physics 2021-10-12 Pawan Kumar Pandey , Malay Kumar Das

In this contribution, a novel method for stent simulation in preoperative computed tomography angiography (CTA) acquisitions of patients is presented where the sealing zones are automatically calculated and visualized. The method is…

Computer Vision and Pattern Recognition · Computer Science 2013-10-23 Jan Egger , Miriam H. A. Bauer , Stefan Großkopf , Christina Biermann , Bernd Freisleben , Christopher Nimsky

Emerging technologies like hypersonic aircraft, space exploration vehicles, and batteries avail fluid circulation in embedded microvasculatures for efficient thermal regulation. Modeling is vital during these engineered systems' design and…

Numerical Analysis · Mathematics 2023-05-16 N. V. Jagtap , M. K. Mudunuru , K. B. Nakshatrala

Abstract. Purpose: This paper presents a scheme for generating virtual intraoperative CT scans in order to improve surgical completeness in Endoscopic Sinus Surgeries (ESS). Approach: The work presents three methods, the tip motion-based,…

Image and Video Processing · Electrical Eng. & Systems 2021-12-07 Yangming Li , Neeraja Konuthula , Ian M. Humphreys , Kris Moe , Blake Hannaford , Randall Bly

The minimal invasive procedure of vertebroplasty is a surgical technique to treat compression fractures of vertebral bodies. During the treatment, liquid bone cement gets injected into the affected vertebral body and therein cures to a…

Numerical Analysis · Mathematics 2015-02-10 Ralf Landgraf , Jörn Ihlemann , Sebastian Kolmeder , Alexander Lion , Helena Lebsack , Cornelia Kober

Advances in computational science offer a principled pipeline for predictive modeling of cardiovascular flows and aspire to provide a valuable tool for monitoring, diagnostics and surgical planning. Such models can be nowadays deployed on…

Machine Learning · Computer Science 2019-09-19 Georgios Kissas , Yibo Yang , Eileen Hwuang , Walter R. Witschey , John A. Detre , Paris Perdikaris

OBJECTIVE: To evaluate the efficacy of different forms of virtual reality (VR) treatments as either immersive virtual reality (IVR) or non-immersive virtual reality (NIVR) in comparison to conventional therapy (CT) in improving physical and…

Medical Physics · Physics 2024-10-01 Stanley Mugisha. Mirko Job. Matteo Zoppi , Marco Testa , Rezia Molfino

Purpose: Autonomous navigation of devices in endovascular interventions can decrease operation times, improve decision-making during surgery, and reduce operator radiation exposure while increasing access to treatment. This systematic…

In Angiographic Parametric Imaging (API), accurate estimation of parameters from Time Density Curves (TDC) is crucial. However, these estimations are often marred by errors arising from factors such as patient motion, procedural…

Endovascular procedures have revolutionized vascular disease treatment, yet their manual execution is challenged by the demands for high precision, operator fatigue, and radiation exposure. Robotic systems have emerged as transformative…