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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 and localization of left atrial (LA) ablation scars from Late gadolinium enhancement (LGE)-MRI is essential for assessing the lesion completeness and guiding ablation therapy. Incomplete or discontinuous lesions can…

图像与视频处理 · 电气工程与系统科学 2026-05-01 Bipasha Kundu , Cristian Linte

Cardiac MRI late gadolinium enhancement (LGE) enables non-invasive identification of left atrial (LA) scar, whose spatial distribution is strongly associated with atrial fibrillation (AF) severity and recurrence. However, automatic LA scar…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Jing Zhang , Bastien Bergere , Emilie Bollache , Jonas Leite , Mikaël Laredo , Alban Redheuil , Nadjia Kachenoura

Radiological imaging offers effective measurement of anatomy, which is useful in disease diagnosis and assessment. Previous study has shown that the left atrial wall remodeling can provide information to predict treatment outcome in atrial…

计算机视觉与模式识别 · 计算机科学 2018-12-07 Shuman Jia , Antoine Despinasse , Zihao Wang , Hervé Delingette , Xavier Pennec , Pierre Jaïs , Hubert Cochet , Maxime Sermesant

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

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

Accurate classification of laryngeal vascular as benign or malignant is crucial for early detection of laryngeal cancer. However, organizations with limited access to laryngeal vascular images face challenges due to the lack of large and…

计算机视觉与模式识别 · 计算机科学 2025-01-17 Xinyi Fang , Xu Yang , Chak Fong Chong , Kei Long Wong , Yapeng Wang , Tiankui Zhang , Sio-Kei Im

Developing an effective liver and liver tumor segmentation model from CT scans is very important for the success of liver cancer diagnosis, surgical planning and cancer treatment. In this work, we propose a two-stage framework for 2D liver…

图像与视频处理 · 电气工程与系统科学 2020-07-21 Youbao Tang , Yuxing Tang , Yingying Zhu , Jing Xiao , Ronald M. Summers

We propose an end-to-end deep neural network (DNN) which can simultaneously segment the left atrial (LA) cavity and quantify LA scars. The framework incorporates the continuous spatial information of the target by introducing a spatially…

图像与视频处理 · 电气工程与系统科学 2020-06-24 Lei Li , Xin Weng , Julia A. Schnabel , Xiahai Zhuang

Early-stage 3D brain tumor segmentation from magnetic resonance imaging (MRI) scans is crucial for prompt and effective treatment. However, this process faces the challenge of precise delineation due to the tumors' complex heterogeneity.…

图像与视频处理 · 电气工程与系统科学 2024-11-26 Ebtihal J. Alwadee , Xianfang Sun , Yipeng Qin , Frank C. Langbein

Objective: Vessel-wall-volume (VWV) and localized vessel-wall-thickness (VWT) measured from 3D ultrasound (US) carotid images are sensitive to anti-atherosclerotic effects of medical/dietary treatments. VWV and VWT measurements require the…

图像与视频处理 · 电气工程与系统科学 2021-11-17 Mingjie Jiang , Yuan Zhao , Bernard Chiu

While the existing deep learning-based room layout estimation techniques demonstrate good overall accuracy, they are less effective for distant floor-wall boundary. To tackle this problem, we propose a novel uncertainty-guided approach for…

计算机视觉与模式识别 · 计算机科学 2023-04-19 Pooya Fayyazsanavi , Zhiqiang Wan , Will Hutchcroft , Ivaylo Boyadzhiev , Yuguang Li , Jana Kosecka , Sing Bing Kang

Precise lens structure segmentation is essential for the design of intraocular lenses (IOLs) in cataract surgery. Existing deep segmentation networks typically weight all pixels equally under cross-entropy (CE) loss, overlooking the fact…

计算机视觉与模式识别 · 计算机科学 2025-08-13 Zunjie Xiao , Xiao Wu , Tianhang Liu , Lingxi Hu , Yinling Zhang , Xiaoqing Zhang , Risa Higashita , Jiang Liu

T2-weighted magnetic resonance imaging (MRI) and diffusion-weighted imaging (DWI) are essential components for cervical cancer diagnosis. However, combining these channels for training deep learning models are challenging due to…

图像与视频处理 · 电气工程与系统科学 2023-06-21 Reza Kalantar , Sebastian Curcean , Jessica M Winfield , Gigin Lin , Christina Messiou , Matthew D Blackledge , Dow-Mu Koh

Functional analysis of the left atrium (LA) plays an increasingly important role in the prognosis and diagnosis of cardiovascular diseases. Echocardiography-based measurements of LA dimensions and strains are useful biomarkers, but they…

图像与视频处理 · 电气工程与系统科学 2023-09-06 Christoforos Galazis , Anil Anthony Bharath , Marta Varela

Deep learning-based low-dose computed tomography reconstruction methods already achieve high performance on standard image quality metrics like peak signal-to-noise ratio and structural similarity index measure. Yet, they frequently fail to…

图像与视频处理 · 电气工程与系统科学 2025-11-11 Necati Sefercioglu , Mehmet Ozan Unal , Metin Ertas , Isa Yildirim

Segmentation of the left atrium (LA) is crucial for assessing its anatomy in both pre-operative atrial fibrillation (AF) ablation planning and post-operative follow-up studies. In this paper, we present a fully automated framework for left…

计算机视觉与模式识别 · 计算机科学 2019-02-28 Chen Chen , Wenjia Bai , Daniel Rueckert

Accurate assessment of left atrial fibrosis in patients with atrial fibrillation relies on high-quality 3D late gadolinium enhancement (LGE) MRI images. However, obtaining such images is challenging due to patient motion, changing breathing…

图像与视频处理 · 电气工程与系统科学 2024-07-11 K M Arefeen Sultan , Benjamin Orkild , Alan Morris , Eugene Kholmovski , Erik Bieging , Eugene Kwan , Ravi Ranjan , Ed DiBella , Shireen Elhabian

Reliable tumor segmentation in thoracic computed tomography (CT) remains challenging due to boundary ambiguity, class imbalance, and anatomical variability. We propose an uncertainty-guided, coarse-to-fine segmentation framework that…

计算机视觉与模式识别 · 计算机科学 2025-07-04 Ilkin Sevgi Isler , David Mohaisen , Curtis Lisle , Damla Turgut , Ulas Bagci

Annotating medical images demands significant time and expertise, often requiring pathologists to invest hundreds of hours in labeling mammary epithelial nuclei datasets. We address this critical challenge by achieving 95.5% Dice score…

人工智能 · 计算机科学 2025-12-03 Varun Kumar Dasoju , Qingsu Cheng , Zeyun Yu
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