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Detection and monitoring of patients with pulmonary hypertension, defined as mean blood pressure in the main pulmonary artery above 25 mmHg, requires a combination of imaging and hemodynamic measurements. This study demonstrates how to…

Quantitative Methods · Quantitative Biology 2020-02-21 Megan J. Chambers , Mitchel J. Colebank , M Umar Qureshi , Rachel Clipp , Mette S. Olufsen

Segmenting deep brain structures from magnetic resonance images is important for patient diagnosis, surgical planning, and research. Most current state-of-the-art solutions follow a segmentation-by-registration approach, where subject MRIs…

Image and Video Processing · Electrical Eng. & Systems 2022-05-20 Mehri Baniasadi , Mikkel V. Petersen , Jorge Goncalves , Andreas Horn , Vanja Vlasov , Frank Hertel , Andreas Husch

We present a semi-supervised domain adaptation framework for brain vessel segmentation from different image modalities. Existing state-of-the-art methods focus on a single modality, despite the wide range of available cerebrovascular…

Image and Video Processing · Electrical Eng. & Systems 2024-03-28 Francesco Galati , Daniele Falcetta , Rosa Cortese , Barbara Casolla , Ferran Prados , Ninon Burgos , Maria A. Zuluaga

Temporal volume images with 3D+t (4D) information are often used in medical imaging to statistically analyze temporal dynamics or capture disease progression. Although deep-learning-based generative models for natural images have been…

Image and Video Processing · Electrical Eng. & Systems 2022-06-28 Boah Kim , Jong Chul Ye

Defaults in vascular (VN) and neuronal networks of spinal cord are responsible for serious neurodegenerative pathologies. Because of inadequate investigation tools, the lacking knowledge of the complete fine structure of VN and neuronal…

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

Currently, it is challenging to investigate aneurismal hemodynamics based on current in-vivo data such as Magnetic Resonance Imaging or Computed Tomography due to the limitations in both spatial and temporal resolutions. In this work, we…

Fluid Dynamics · Physics 2024-10-17 Thien-Tam Nguyen , Davina Kasperski , Phat Kim Huynh , Trung Quoc Le , Trung Bao Le

Brain MR image segmentation is a key task in neuroimaging studies. It is commonly conducted using standard computational tools, such as FSL, SPM, multi-atlas segmentation etc, which are often registration-based and suffer from expensive…

Image and Video Processing · Electrical Eng. & Systems 2019-08-29 Chengliang Dai , Yuanhan Mo , Elsa Angelini , Yike Guo , Wenjia Bai

Generating realistic MRIs to accurately predict future changes in the structure of brain is an invaluable tool for clinicians in assessing clinical outcomes and analysing the disease progression at the patient level. However, current…

Computer Vision and Pattern Recognition · Computer Science 2025-09-04 Mattia Litrico , Francesco Guarnera , Mario Valerio Giuffrida , Daniele Ravì , Sebastiano Battiato

The volume of a brain lesion (e.g. infarct or tumor) is a powerful indicator of patient prognosis and can be used to guide the therapeutic strategy. Lesional volume estimation is usually performed by segmentation with deep convolutional…

Image and Video Processing · Electrical Eng. & Systems 2023-07-31 Benjamin Lambert , Florence Forbes , Senan Doyle , Michel Dojat

Typical approaches to patient-specific hemodynamic studies of cerebral aneurysms use image based computational fluid dynamics (CFD) and seek to statistically correlate parameters such as wall shear stress (WSS) and oscillatory shear index…

Extracting long tracks and lineages from videomicroscopy requires an extremely low error rate, which is challenging on complex datasets of dense or deforming cells. Leveraging temporal context is key to overcoming this challenge. We propose…

Computer Vision and Pattern Recognition · Computer Science 2023-11-22 Jean Ollion , Martin Maliet , Caroline Giuglaris , Elise Vacher , Maxime Deforet

Longitudinal image registration enables studying temporal changes in brain morphology which is useful in applications where monitoring the growth or atrophy of specific structures is important. However this task is challenging due to;…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Aisha L. Shuaibu , Kieran A. Gibb , Peter A. Wijeratne , Ivor J. A. Simpson

Vascular remodelling is inherent to the pathogenesis of many diseases including cancer, neurodegeneration, fibrosis, hypertension, and diabetes. In this paper, a new susceptibility-contrast based MRI approach is established to analyse…

Current state-of-the-art deep learning segmentation methods have not yet made a broad entrance into the clinical setting in spite of high demand for such automatic methods. One important reason is the lack of reliability caused by models…

Computer Vision and Pattern Recognition · Computer Science 2019-06-18 Jörg Sander , Bob D. de Vos , Jelmer M. Wolterink , Ivana Išgum

In this paper, we adopt 3D Convolutional Neural Networks to segment volumetric medical images. Although deep neural networks have been proven to be very effective on many 2D vision tasks, it is still challenging to apply them to 3D tasks…

Computer Vision and Pattern Recognition · Computer Science 2018-08-03 Zhuotun Zhu , Yingda Xia , Wei Shen , Elliot K. Fishman , Alan L. Yuille

Accurate MR signal simulation, including microvascular structures and water diffusion, is crucial for MRI techniques like fMRI BOLD modeling and MR vascular Fingerprinting (MRF), which use susceptibility effects on MR signals for tissue…

Automated detection of curvilinear structures, e.g., blood vessels or nerve fibres, from medical and biomedical images is a crucial early step in automatic image interpretation associated to the management of many diseases. Precise…

Image and Video Processing · Electrical Eng. & Systems 2020-10-20 Lei Mou , Yitian Zhao , Huazhu Fu , Yonghuai Liu , Jun Cheng , Yalin Zheng , Pan Su , Jianlong Yang , Li Chen , Alejandro F Frang , Masahiro Akiba , Jiang Liu

In this study, we have tailored a pixel tracking method for temporal extrapolation of the ventricular segmentation masks in cardiac magnetic resonance images. The pixel tracking process starts from the end-diastolic frame of the heart cycle…

Image and Video Processing · Electrical Eng. & Systems 2022-08-02 Arash Rabbani , Hao Gao , Dirk Husmeier

In recent years, deep convolutional neural networks (CNNs) have shown record-shattering performance in a variety of computer vision problems, such as visual object recognition, detection and segmentation. These methods have also been…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Jose Bernal , Kaisar Kushibar , Daniel S. Asfaw , Sergi Valverde , Arnau Oliver , Robert Martí , Xavier Lladó
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