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Detection of atrial fibrillation (AF), a type of cardiac arrhythmia, is difficult since many cases of AF are usually clinically silent and undiagnosed. In particular paroxysmal AF is a form of AF that occurs occasionally, and has a higher…

神经元与认知 · 定量生物学 2018-05-24 Supreeth P. Shashikumar , Amit J. Shah , Gari D. Clifford , Shamim Nemati

We consider the total variation (TV) minimization problem used for compressive sensing and solve it using the generalized alternating projection (GAP) algorithm. Extensive results demonstrate the high performance of proposed algorithm on…

信息论 · 计算机科学 2015-11-13 Xin Yuan

Cardiac segmentation of atriums, ventricles, and myocardium in computed tomography (CT) images is an important first-line task for presymptomatic cardiovascular disease diagnosis. In several recent studies, deep learning models have shown…

图像与视频处理 · 电气工程与系统科学 2024-10-01 Sanguk Park , Minyoung Chung

Echocardiogram (echo) is the earliest and the primary tool for identifying regional wall motion abnormalities (RWMA) in order to diagnose myocardial infarction (MI) or commonly known as heart attack. This paper proposes a novel approach,…

图像与视频处理 · 电气工程与系统科学 2025-01-27 Serkan Kiranyaz , Aysen Degerli , Tahir Hamid , Rashid Mazhar , Rayyan Ahmed , Rayaan Abouhasera , Morteza Zabihi , Junaid Malik , Ridha Hamila , Moncef Gabbouj

Late gadolinium enhancement MRI (LGE MRI) is the gold standard for the detection of myocardial scars for post myocardial infarction (MI). LGE MRI requires the injection of a contrast agent, which carries potential side effects and increases…

图像与视频处理 · 电气工程与系统科学 2025-01-10 Guang Yang , Jingkun Chen , Xicheng Sheng , Shan Yang , Xiahai Zhuang , Betty Raman , Lei Li , Vicente Grau

Diffusion-weighted magnetic resonance imaging (DW-MRI) is a powerful, non-invasive tool for detecting and characterizing abdominal lesions to facilitate early diagnosis, but respiratory motion during a scan reduces image quality and…

图像与视频处理 · 电气工程与系统科学 2024-11-19 Michelle Su , Cemre Ariyurek , Serge Vasylechko , Onur Afacan , Sila Kurugol

We demonstrate a new technique in velocity map imaging (VMI) that allows spatial gating of the laser focal overlap region in time resolved pump-probe experiments. This significantly enhances signal-to-noise ratio by eliminating background…

In nuclear imaging, limited resolution causes partial volume effects (PVEs) that affect image sharpness and quantitative accuracy. Partial volume correction (PVC) methods incorporating high-resolution anatomical information from CT or MRI…

Accurate segmentation of pulmonary vessels plays a very critical role in diagnosing and assessing various lung diseases. Currently, many automated algorithms are primarily targeted at CTPA (Computed Tomography Pulmonary Angiography) types…

图像与视频处理 · 电气工程与系统科学 2025-05-20 Ying Ming , Shaoze Luo , Longfei Zhao , Ruijie Zhao , Bing Li , Qiqi Xu , Wei Song

Atrial fibrillation is a cardiac arrhythmia that affects an estimated 33.5 million people globally and is the potential cause of 1 in 3 strokes in people over the age of 60. Detection and diagnosis of atrial fibrillation (AFIB) is done…

机器学习 · 计算机科学 2019-03-29 Sara Ross-Howe , H. R. Tizhoosh

Accurate segmentation of myocardial scar from late gadolinium enhanced (LGE) cardiac MRI is essential for evaluating tissue viability, yet remains challenging due to variable contrast and imaging artifacts. Electrocardiogram (ECG) signals…

计算机视觉与模式识别 · 计算机科学 2026-04-02 Farheen Ramzan , Yusuf Kiberu , Nikesh Jathanna , Meryem Jabrane , Vicente Grau , Shahnaz Jamil-Copley , Richard H. Clayton , Chen , Chen

Atrial fibrillation (AF) is the most common type of cardiac arrhythmia. It is associated with an increased risk of stroke, heart failure, and other cardiovascular complications, but can be clinically silent. Passive AF monitoring with…

机器学习 · 计算机科学 2024-03-12 Zhicheng Guo , Cheng Ding , Duc H. Do , Amit Shah , Randall J. Lee , Xiao Hu , Cynthia Rudin

In the United States, heart disease is the leading cause of death for both men and women, accounting for 610,000 deaths each year [1]. Physicians use Magnetic Resonance Imaging (MRI) scans to take images of the heart in order to…

计算机视觉与模式识别 · 计算机科学 2018-11-22 Ehab Abdelmaguid , Jolene Huang , Sanjay Kenchareddy , Disha Singla , Laura Wilke , Mai H. Nguyen , Ilkay Altintas

Segmentation of small and irregularly shaped abdominal organs, such as the adrenal glands in CT imaging, remains a persistent challenge due to severe class imbalance, poor spatial context, and limited annotated data. In this work, we…

图像与视频处理 · 电气工程与系统科学 2025-09-04 Hania Ghouse , Muzammil Behzad

In this work, self-mixing interferometry (SMI) is implemented inline to a laser microdrilling system to monitor the machining process by probing the ablation-induced plume. An analytical model based on the Sedov-Taylor blast wave equation…

应用物理 · 物理学 2018-12-03 Simone Donadello , Ali Gökhan Demir , Barbara Previtali

In this tutorial we explain the inference procedures developed for the sparse Gaussian process (GP) regression and Gaussian process latent variable model (GPLVM). Due to page limit the derivation given in Titsias (2009) and Titsias &…

机器学习 · 统计学 2014-10-01 Yarin Gal , Mark van der Wilk

Coronary angiography is the main tool for assessing coronary artery disease, but visual grading of stenosis is variable and only moderately related to ischaemia. Wire based fractional flow reserve (FFR) improves lesion selection but is not…

计算机视觉与模式识别 · 计算机科学 2025-12-11 Georgy Kopanitsa , Oleg Metsker , Alexey Yakovlev

In a probabilistic latent variable model, factorized (or mean-field) variational inference (F-VI) fits a separate parametric distribution for each latent variable. Amortized variational inference (A-VI) instead learns a common inference…

机器学习 · 统计学 2024-05-27 Charles C. Margossian , David M. Blei

Lung magnetic resonance imaging (MRI) with ultrashort echo-time (UTE) represents a recent breakthrough in lung structure imaging, providing image resolution and quality comparable to computed tomography (CT). Due to the absence of ionising…

图像与视频处理 · 电气工程与系统科学 2025-07-01 Bowen Xin , Rohan Hickey , Tamara Blake , Jin Jin , Claire E Wainwright , Thomas Benkert , Alto Stemmer , Peter Sly , David Coman , Jason Dowling

The increasing reliance on Computed Tomography Pulmonary Angiography (CTPA) for Pulmonary Embolism (PE) diagnosis presents challenges and a pressing need for improved diagnostic solutions. The primary objective of this study is to leverage…