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Atrial fibrillation (AF) is a cardiovascular disease identified as one of the main risk factors for stroke. The majority of strokes due to AF are caused by clots originating in the left atrial appendage (LAA). LAA occlusion is an effective…

图像与视频处理 · 电气工程与系统科学 2022-05-16 Hrvoje Leventić , Marin Benčević , Danilo Babin , Marija Habijan , Irena Galić

Late gadolinium enhancement magnetic resonance imaging (LGE-MRI) is used to visualise atrial fibrosis and scars, providing important information for personalised atrial fibrillation (AF) treatments. Since manual analysis and delineations of…

图像与视频处理 · 电气工程与系统科学 2025-04-04 Y. On , C. Galazis , C. Chiu , M. Varela

Accurately segmenting left atrium in MR volume can benefit the ablation procedure of atrial fibrillation. Traditional automated solutions often fail in relieving experts from the labor-intensive manual labeling. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2018-12-17 Cheng Bian , Xin Yang , Jianqiang Ma , Shen Zheng , Yu-An Liu , Reza Nezafat , Pheng-Ann Heng , Yefeng Zheng

Accurate segmentation of the left atrium (LA) from late gadolinium-enhanced magnetic resonance imaging plays a vital role in visualizing diseased atrial structures, enabling the diagnosis and management of cardiovascular diseases. It is…

计算机视觉与模式识别 · 计算机科学 2025-02-11 Bipasha Kundu , Zixin Yang , Richard Simon , Cristian Linte

Late Gadolinium Enhanced Cardiac MRI (LGE-CMRI) for detecting atrial scars in atrial fibrillation (AF) patients has recently emerged as a promising technique to stratify patients, guide ablation therapy and predict treatment success.…

计算机视觉与模式识别 · 计算机科学 2018-06-13 Jun Chen , Guang Yang , Zhifan Gao , Hao Ni , Elsa Angelini , Raad Mohiaddin , Tom Wong , Yanping Zhang , Xiuquan Du , Heye Zhang , Jennifer Keegan , David Firmin

Automatic segmentation of the left ventricle (LV) in late gadolinium enhanced (LGE) cardiac MR (CMR) images is difficult due to the intensity heterogeneity arising from accumulation of contrast agent in infarcted myocardium. In this paper,…

图像与视频处理 · 电气工程与系统科学 2022-05-24 Dong Wei , Ying Sun , Sim-Heng Ong , Ping Chai , Lynette L. Teo , Adrian F. Low

Accurate cardiac computing, analysis and modeling from multi-modality images are important for the diagnosis and treatment of cardiac disease. Late gadolinium enhancement magnetic resonance imaging (LGE MRI) is a promising technique to…

图像与视频处理 · 电气工程与系统科学 2021-11-10 Lei Li , Fuping Wu , Sihang Wang , Xiahai Zhuang

Segmentation of the left atrial (LA) wall and endocardium from late gadolinium-enhanced (LGE) MRI is essential for quantifying atrial fibrosis in patients with atrial fibrillation. The development of accurate machine learning-based…

计算机视觉与模式识别 · 计算机科学 2026-04-17 Yusri Al-Sanaani , Rebecca Thornhill , Sreeraman Rajan

Patients with atrial fibrillation have a 5-7 fold increased risk of having an ischemic stroke. In these cases, the most common site of thrombus localization is inside the left atrial appendage (LAA) and studies have shown a correlation…

计算机视觉与模式识别 · 计算机科学 2024-02-13 Kristine Aavild Juhl , Jakob Slipsager , Ole de Backer , Klaus Kofoed , Oscar Camara , Rasmus Paulsen

Segmenting the left atrial (LA) wall from late gadolinium enhancement magnetic resonance imaging (LGE-MRI) is challenging because of its thin geometry, low contrast, and limited expert annotations. We propose a model-agnostic meta-learning…

计算机视觉与模式识别 · 计算机科学 2026-05-25 Yusri Al-Sanaani , Rebecca Thornhill , Pablo Nery , Elena Pena , Robert deKemp , Calum Redpath , David Birnie , Sreeraman Rajan

Accurate segmentation of the cardiac boundaries in late gadolinium enhancement magnetic resonance images (LGE-MRI) is a fundamental step for accurate quantification of scar tissue. However, while there are many solutions for automatic…

图像与视频处理 · 电气工程与系统科学 2020-01-14 Víctor M. Campello , Carlos Martín-Isla , Cristian Izquierdo , Steffen E. Petersen , Miguel A. González Ballester , Karim Lekadir

Visualizing disease-induced scarring and fibrosis in the heart on cardiac magnetic resonance (CMR) imaging with contrast enhancement (LGE) is paramount in characterizing disease progression and quantifying pathophysiological substrates of…

图像与视频处理 · 电气工程与系统科学 2021-01-12 Haley G. Abramson , Dan M. Popescu , Rebecca Yu , Changxin Lai , Julie K. Shade , Katherine C. Wu , Mauro Maggioni , Natalia A. Trayanova

Left atrial (LA) segmentation is a crucial technique for irregular heartbeat (i.e., atrial fibrillation) diagnosis. Most current methods for LA segmentation strictly assume that the input data is acquired using object-oriented center…

图像与视频处理 · 电气工程与系统科学 2024-07-09 Fangqiang Xu , Wenxuan Tu , Fan Feng , Malitha Gunawardhana , Jiayuan Yang , Yun Gu , Jichao Zhao

Multi-atlas segmentation approach is one of the most widely-used image segmentation techniques in biomedical applications. There are two major challenges in this category of methods, i.e., atlas selection and label fusion. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2018-08-03 Heran Yang , Jian Sun , Huibin Li , Lisheng Wang , Zongben Xu

Identification and quantification of myocardial scar is important for diagnosis and prognosis of cardiovascular diseases. However, reliable scar segmentation from Late Gadolinium Enhancement Cardiac Magnetic Resonance (LGE-CMR) images…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Nivetha Jayakumar , Jonathan Pan , Shuo Wang , Bishow Paudel , Nisha Hosadurg , Cristiane C. Singulane , Sivam Bhatt , Amit R. Patel , Miaomiao Zhang

Segmentation of cardiac fibrosis and scar are essential for clinical diagnosis and can provide invaluable guidance for the treatment of cardiac diseases. Late Gadolinium enhancement (LGE) cardiovascular magnetic resonance (CMR) has been…

图像与视频处理 · 电气工程与系统科学 2021-07-01 Yinzhe Wu , Zeyu Tang , Binghuan Li , David Firmin , Guang Yang

Atrial fibrillation (AFib) is the prominent cardiac arrhythmia in the world. It affects mostly the elderly population, with potential consequences such as stroke and heart failure in the absence of necessary treatments as soon as possible.…

图像与视频处理 · 电气工程与系统科学 2025-01-07 Malitha Gunawardhana , Anuradha Kulathilaka , Jichao Zhao

Automated segmentation of left ventricular cavity (LVC) in temporal cardiac image sequences (multiple time points) is a fundamental requirement for quantitative analysis of its structural and functional changes. Deep learning based methods…

图像与视频处理 · 电气工程与系统科学 2024-12-18 Yuyu Guo , Lei Bi , Zhengbin Zhu , David Dagan Feng , Ruiyan Zhang , Qian Wang , Jinman Kim

Accurate left atrium (LA) segmentation from pre-operative scans is crucial for diagnosing atrial fibrillation, treatment planning, and supporting surgical interventions. While deep learning models are key in medical image segmentation, they…

图像与视频处理 · 电气工程与系统科学 2024-11-15 Bipasha Kundu , Bidur Khanal , Richard Simon , Cristian A. Linte

Thanks to the capacity for long-range dependencies and robustness to irregular shapes, vision transformers and deformable convolutions are emerging as powerful vision techniques of segmentation.Meanwhile, Graph Convolution Networks (GCN)…

计算机视觉与模式识别 · 计算机科学 2022-10-12 Tianyi Liu , Size Hou , Jiayuan Zhu , Zilong Zhao , Haochuan Jiang