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We analyze left atrium haemodynamics, highlighting differences among healthy individuals and patients affected by atrial fibrillation. The computational study is based on patient-specific geometries of the left atria to simulate blood flow…

流体动力学 · 物理学 2022-10-06 Mattia Corti , Alberto Zingaro , Luca Dede' , Alfio Maria Quarteroni

Accurate cerebrovascular segmentation from Magnetic Resonance Angiography (MRA) and Computed Tomography Angiography (CTA) is of great significance in diagnosis and treatment of cerebrovascular pathology. Due to the complexity and topology…

图像与视频处理 · 电气工程与系统科学 2024-11-22 Zhanqiang Guo , Yao Luan , Jianjiang Feng , Wangsheng Lu , Yin Yin , Guangming Yang , Jie Zhou

This review describes the analytical calculation of lateral pressure profile in lipid membrane with finite curvature. The derivation is based on the previously developed microscopic model of flexible strings [1,2]. According to this theory…

软凝聚态物质 · 物理学 2016-07-08 Anna A. Drozdova

Arterial biomechanical indicators have long been recognized as fundamental contributors to the physiology and pathology of cardiovascular systems. Probing the multiple biomechanical parameters of arteries simultaneously at different time…

Cardiovascular diseases, particularly arrhythmias, remain a leading global cause of mortality, necessitating continuous monitoring via the Internet of Medical Things (IoMT). However, state-of-the-art deep learning approaches often impose…

机器学习 · 计算机科学 2026-01-05 Moirangthem Tiken Singh , Manibhushan Yaikhom

A model-based description of the scaling and radial location of turbulent fluctuations in turbulent pipe flow is presented and used to illuminate the scaling behaviour of the very large scale motions. The model is derived by treating the…

流体动力学 · 物理学 2010-12-06 B. J. McKeon , A. S. Sharma

- Modeling Human cardiovascular system is always an important issue. One of the most effective methods is using lumped model to reach to a complete model of human cardiovascular system. Such modeling with advanced considerations is used in…

The ability to map left ventricle (LV) myocardial motion using computed tomography angiography (CTA) is essential to diagnosing cardiovascular conditions and guiding interventional procedures. Due to their inherent locality, conventional…

图像与视频处理 · 电气工程与系统科学 2024-11-08 Shahar Zuler , Shai Tejman-Yarden , Dan Raviv

Acute Lymphoblastic Leukemia (ALL) is one of the most common types of childhood blood cancer. The quick start of the treatment process is critical to saving the patient's life, and for this reason, early diagnosis of this disease is…

计算机视觉与模式识别 · 计算机科学 2025-03-07 Amirhossein Askari Farsangi , Ali Sharifi-Zarchi , Mohammad Hossein Rohban

The focus of this paper is a proof of concept, machine learning (ML) pipeline that extracts heart rate from pressure sensor data acquired on low-power edge devices. The ML pipeline consists an upsampler neural network, a signal quality…

机器学习 · 计算机科学 2022-08-18 Preetam Anbukarasu , Shailesh Nanisetty , Ganesh Tata , Nilanjan Ray

A common practice in the medical industry is the use of clinical notes, which consist of detailed patient observations. However, electronic health record systems frequently do not contain these observations in a structured format, rendering…

计算与语言 · 计算机科学 2023-10-09 Neil Daniel

Background: We investigated clinical information underneath the beat-to-beat fluctuation of the arterial blood pressure (ABP) waveform morphology. We proposed the Dynamical Diffusion Map algorithm (DDMap) to quantify the variability of…

Coupling hemodynamics with vessel wall growth and remodeling (G&R) is crucial for understanding pathology at distal vasculature to study progression of incurable vascular diseases, such as pulmonary arterial hypertension. The present study…

生物物理 · 物理学 2020-01-15 Vasilina Filonova , Hamidreza Gharahi , Nitesh Nama , Seungik Baek , C. Alberto Figueroa

Purpose: Atrial fibrillation (AF) is the most common cardiac arrhythmia and is correlated with increased morbidity and mortality. It is associated with atrial fibrosis, which may be assessed non-invasively using late gadolinium-enhanced…

计算机视觉与模式识别 · 计算机科学 2018-07-04 Guang Yang , Xiahai Zhuang , Habib Khan , Shouvik Haldar , Eva Nyktari , Lei Li , Rick Wage , Xujiong Ye , Greg Slabaugh , Raad Mohiaddin , Tom Wong , Jennifer Keegan , David Firmin

Many studies regarding the vasculature of biological tissues involve the segmentation of the blood vessels in a sample followed by the creation of a graph structure to model the vasculature. The graph is then used to extract relevant…

计算机视觉与模式识别 · 计算机科学 2024-06-21 João Pedro Parella , Matheus Viana da Silva , Cesar Henrique Comin

Vascular tracking of angiographic image sequences is one of the most clinically important tasks in the diagnostic assessment and interventional guidance of cardiac disease. However, this task can be challenging to accomplish because of…

计算机视觉与模式识别 · 计算机科学 2018-05-28 Huihui Fang , Jian Yang , Jianjun Zhu , Danni Ai , Yong Huang , Yurong Jiang , Hong Song , Yongtian Wang

The heart is the central part of the cardiovascular network. Its role is to pump blood to various body organs. Many cardiovascular diseases occur due to an abnormal functioning of the heart. A diseased heart leads to severe complications…

医学物理 · 物理学 2024-11-19 Mahesh S. Nagargoje , Eneko Lazpita , Jesús Garicano-Mena , Soledad Le Clainche

Deviation of blood flow from an optimal range is known to be associated with the initiation and progression of vascular pathologies. Important open questions remain about how the abnormal flow drives specific wall changes in pathologies…

Assessing coronary artery plaque segments in coronary CT angiography scans is an important task to improve patient management and clinical outcomes, as it can help to decide whether invasive investigation and treatment are necessary. In…

A method is presented for the registration of MRA and 4D Flow images, with the goal of calculating blood flow properties using both modalities simultaneously. In particular, the method produces an alignment of segmentations of vessel…