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Optical coherence tomography angiography (OCTA) can non-invasively image the eye's circulatory system. In order to reliably characterize the retinal vasculature, there is a need to automatically extract quantitative metrics from these…

Image and Video Processing · Electrical Eng. & Systems 2022-07-25 Martin J. Menten , Johannes C. Paetzold , Alina Dima , Bjoern H. Menze , Benjamin Knier , Daniel Rueckert

Optical coherence tomography angiography (OCTA) is a non-invasive imaging modality that can acquire high-resolution volumes of the retinal vasculature and aid the diagnosis of ocular, neurological and cardiac diseases. Segmenting the…

Blood vessel segmentation is a core task in medical image analysis for the care of vascular diseases and surgical planning, yet the challenges of providing expert vascular annotations pose a major obstacle for the progress of related deep…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Erin Rainville , Melissa Ananian , Tristan Mirolla , Hassan Rivaz , Yiming Xiao

In this study, we develop a novel methodology for annotating the brain vasculature using dynamic 4D-CTA head scans. By using multiple time points from dynamic CTA acquisitions, we subtract bone and soft tissue to enhance the visualization…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Alberto Mario Ceballos-Arroyo , Shrikanth M. Yadav , Chu-Hsuan Lin , Jisoo Kim , Geoffrey S. Young , Lei Qin , Huaizu Jiang

Optical Coherence Tomography Angiography (OCTA) has been increasingly used in the management of eye and systemic diseases in recent years. Manual or automatic analysis of blood vessel in 2D OCTA images (en face angiograms) is commonly used…

Image and Video Processing · Electrical Eng. & Systems 2021-03-01 Shuai Yu , Jianyang Xie , Jinkui Hao , Yalin Zheng , Jiong Zhang , Yan Hu , Jiang Liu , Yitian Zhao

Optical coherence tomography angiography (OCTA) is a novel non-invasive imaging modality for the visualisation of microvasculature in vivo that has encountered broad adoption in retinal research. OCTA potential in the assessment of…

Image and Video Processing · Electrical Eng. & Systems 2020-06-02 Ylenia Giarratano , Eleonora Bianchi , Calum Gray , Andrew Morris , Tom MacGillivray , Baljean Dhillon , Miguel O. Bernabeu

Optical coherence tomography angiography (OCTA) is a noninvasive imaging technique that can reveal high-resolution retinal vessels. In this work, we propose an accurate and efficient neural network for retinal vessel segmentation in OCTA…

Image and Video Processing · Electrical Eng. & Systems 2023-09-19 Haojian Ning , Chengliang Wang , Xinrun Chen , Shiying Li

Delineating 3D blood vessels is essential for clinical diagnosis and treatment, however, is challenging due to complex structure variations and varied imaging conditions. Supervised deep learning has demonstrated its superior capacity in…

Image and Video Processing · Electrical Eng. & Systems 2023-02-08 Huai Chen , Xiuying Wang , Lisheng Wang

Optical coherence tomography angiography (OCTA) is a novel noninvasive imaging modality for visualization of retinal blood flow in the human retina. Using specific OCTA imaging biomarkers for the identification of pathologies, automated…

Image and Video Processing · Electrical Eng. & Systems 2025-04-09 Anna Breger , Felix Goldbach , Bianca S. Gerendas , Ursula Schmidt-Erfurth , Martin Ehler

Optical coherence tomography angiography (OCTA) is an imaging technique that allows for non-invasive investigation of the microvasculature in the retina. OCTA uses laser light reflectance to measure moving blood cells. Hereby, it visualizes…

Tissues and Organs · Quantitative Biology 2020-02-11 Astrid M. E. Engberg , Vedrana A. Dahl , Anders B. Dahl

Accurate automated extraction of brain vessel centerlines from CTA images plays an important role in diagnosis and therapy of cerebrovascular diseases, such as stroke. However, this task remains challenging due to the complex…

Image and Video Processing · Electrical Eng. & Systems 2024-01-17 Sijie Liu , Ruisheng Su , Jianghang Su , Jingmin Xin , Jiayi Wu , Wim van Zwam , Pieter Jan van Doormaal , Aad van der Lugt , Wiro J. Niessen , Nanning Zheng , Theo van Walsum

Accurate analysis and modeling of renal functions require a precise segmentation of the renal blood vessels. Micro-CT scans provide image data at higher resolutions, making more small vessels near the renal cortex visible. Although…

Image and Video Processing · Electrical Eng. & Systems 2023-05-29 Peidi Xu , Olga Sosnovtseva , Charlotte Mehlin Sørensen , Kenny Erleben , Sune Darkner

Accurate segmentation of cerebral vasculature and a quantitative assessment of cerebrovascular morphology is critical to various diagnostic and therapeutic purposes and is pertinent to studying brain health and disease. However, this is…

Quantitative Methods · Quantitative Biology 2020-02-27 Aditi Deshpande , Nima Jamilpour , Bin Jiang , Chelsea Kidwell , Max Wintermark , Kaveh Laksari

Segmentation of the coronary artery is an important task for the quantitative analysis of coronary computed tomography angiography (CCTA) images and is being stimulated by the field of deep learning. However, the complex structures with…

Image and Video Processing · Electrical Eng. & Systems 2023-05-09 Xiaoyu Yang , Lijian Xu , Simon Yu , Qing Xia , Hongsheng Li , Shaoting Zhang

Microvascular anatomy is known to be involved in various neurological disorders. However, understanding these disorders is hindered by the lack of imaging modalities capable of capturing the comprehensive three-dimensional vascular network…

Image and Video Processing · Electrical Eng. & Systems 2024-07-02 Etienne Chollet , Yaël Balbastre , Chiara Mauri , Caroline Magnain , Bruce Fischl , Hui Wang

Optical coherence tomography angiography (OCTA) is a non-invasive imaging modality that extends the functionality of OCT by extracting moving red blood cell signals from surrounding static biological tissues. OCTA has emerged as a valuable…

Image and Video Processing · Electrical Eng. & Systems 2023-05-04 Jinpeng Liao , Tianyu Zhang , Yilong Zhang , Chunhui Li , Zhihong Huang

Optical coherence tomography angiography (OCTA) is a non-invasive imaging technique widely used to study vascular structures and micro-circulation dynamics in the retina and choroid. OCTA has been widely used in clinics for diagnosing…

Image and Video Processing · Electrical Eng. & Systems 2025-08-26 Kejie Chen , Guanbing Gao , Xiaochun Yang , Wenbo Wang , Jing Na

Deep learning techniques for 3D brain vessel image segmentation have not been as successful as in the segmentation of other organs and tissues. This can be explained by two factors. First, deep learning techniques tend to show poor…

Computer Vision and Pattern Recognition · Computer Science 2021-11-04 Vien Ngoc Dang , Francesco Galati , Rosa Cortese , Giuseppe Di Giacomo , Viola Marconetto , Prateek Mathur , Karim Lekadir , Marco Lorenzi , Ferran Prados , Maria A. Zuluaga

Recent studies suggest that early stages of diabetic retinopathy (DR) can be diagnosed by monitoring vascular changes in the deep vascular complex. In this work, we investigate a novel method for automated DR grading based on optical…

Image and Video Processing · Electrical Eng. & Systems 2022-12-22 Linus Kreitner , Ivan Ezhov , Daniel Rueckert , Johannes C. Paetzold , Martin J. Menten

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
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