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Open gantry C-arm systems that are placed within the interventional room enable 3-D imaging and guidance for stroke therapy without patient transfer. This can profit in drastically reduced time-totherapy, however, due to the interventional…

Machine learning can be used to analyse physiological data for several purposes. Detection of cerebral ischemia is an achievement that would have high impact on patient care. We attempted to study if collection of continous physiological…

Oscillometry is the standard method for non-invasive, cuff-based blood pressure (BP) measurement, but it introduces systematic errors that may impact clinical accuracy. This study investigates the sources of these errors--primarily the…

Signal Processing · Electrical Eng. & Systems 2025-08-22 Masoud Nateghi , Reza Sameni

It is still debated how breathing interacts with the CSF. New Phase contrast MRI sequence based on Echo Planar imaging (EPI-PC) can now produce continuously during minutes a velocity map, more or less every 100 ms. We did not found in the…

Signal Processing · Electrical Eng. & Systems 2022-07-29 Olivier Baledent , Pan Liu , Serge Metanbou , Cyrille Capel , Sidy Fall , Roger Bouzerar

Straight cylindrical stethoscopes serve as an important alternative to conventional stethoscopes whose application in the treatment of infectious diseases might be limited by the use of protective clothing. Yet their miniaturization is…

Applied Physics · Physics 2023-06-05 Zheng-Ji Chen , Jing-Jing Liu , Bin Liang , Jing Yang , Jian-Chun Cheng

Constructing stroke correspondences between keyframes is one of the most important processes in the production pipeline of hand-drawn inbetweening frames. This process requires time-consuming manual work imposing a tremendous burden on the…

Graphics · Computer Science 2021-09-02 Ryoma Miyauchi , Tsukasa Fukusato , Haoran Xie , Kazunori Miyata

Cardiac arrhythmias are a major cause of morbidity and mortality increasing the risk of stroke, heart failure, and sudden cardiac death. Imageless electrocardiographic imaging (ECGI) provides a non invasive alternative to electrical mapping…

The intrinsic volumes are measures of the content of a convex body. This paper uses probabilistic and information-theoretic methods to study the sequence of intrinsic volumes of a convex body. The main result states that the intrinsic…

Metric Geometry · Mathematics 2019-03-21 Martin Lotz , Michael B. McCoy , Ivan Nourdin , Giovanni Peccati , Joel A. Tropp

Timely treatment of stroke is critical to minimize brain damage. Therefore, efforts are being made to educate the public on detecting stroke symptoms, e.g., face, arms, and speech test (FAST). In this position paper, we propose to perform…

Neurons and Cognition · Quantitative Biology 2023-11-17 Vittorio Lippi , Isabelle Daniela Walz , Tobias Heimbach , Simone Meier , Jochen Brich , Christian Haverkamp , Christoph Maurer

A stroke is defined as a neurologic deficit arising from an interruption in blood supply to the brain. According to the World Health Organization, over 15 million people suffer from strokes annually, of which almost 70% die or are…

Quantitative Methods · Quantitative Biology 2022-03-29 Rohan Kalahasty , Lakshmi Sritan Motati

A practical way of detecting sleep stages has become more necessary as we begin to learn about the vast effects that sleep has on people's lives. The current methods of sleep stage detection are expensive, invasive to a person's sleep, and…

Human-Computer Interaction · Computer Science 2022-02-17 Jiebei Liu , Peter Morris , Krista Nelson , Mehdi Boukhechba

Asthma is one of the chronic inflammatory diseases of the airways, which causes chest tightness, wheezing, breathlessness, and cough. Spirometry is an effort-dependent test used to monitor and diagnose lung conditions like Asthma. Vocal…

Medical Physics · Physics 2023-05-02 Shivani Yadav , Dipanjan Gope , Uma Maheswari K. , Prasanta Kumar Ghosh

Strokes are still one of the leading causes for death after heart diseases and cancer in all over the world. Most strokes happen because an artery that carries blood uphill from the heart to the head gets clogged. Most of the time, as with…

Tissues and Organs · Quantitative Biology 2020-02-03 Nurullah Arslan , Kazim Besirli , Gurcan Comert , Omer F Beyca

Arterial pulse waves contain clinically useful information: their intensity varies with cardiac performance, their speed (pulse wave velocity; PWV) depends on arterial stiffness and their reflection is affected by conduit artery tone. Here…

Medical Physics · Physics 2022-05-31 Ethan M Rowland , Kai Riemer , Kevin Lichtenstein , Mengxing Tang , Peter Weinberg

Based on CT and MRI images acquired from normal pressure hydrocephalus (NPH) patients, using machine learning methods, we aim to establish a multi-modal and high-performance automatic ventricle segmentation method to achieve efficient and…

Medical Physics · Physics 2022-02-02 Xi Zhou , Qinghao Ye , Xiaolin Yang , Jiakuan Chen , Haiqin Ma , Jun Xia , Javier Del Ser , Guang Yang

Measures of erythrocytes volume and surface are helpful in several physiological studies, both for zoologists and veterinarians. Whilst diameter and volume are assessed with ease from observations of blood smears and complete blood count,…

Quantitative Methods · Quantitative Biology 2024-06-10 Ion Udroiu

We show that the recoils of the body caused by cardiac motion and blood circulation provide a noninvasive method capable to display the motions of the heart muscle and the propagation of the pulse wave along aorta and its branches. The…

Medical Physics · Physics 2007-05-23 J. Kriz , P. Seba

The size estimates approach for Electrical Impedance Tomography (EIT) allows for estimating the size (area or volume) of an unknown inclusion in an electrical conductor by means of one pair of boundary measurements of voltage and current.…

Analysis of PDEs · Mathematics 2012-02-27 Giovanni Alessandrini , Antonio Bilotta , Antonino Morassi , Edi Rosset , Emilio Turco

With stereoscopic displays, a depth sensation that is too strong could impede visual comfort and result in fatigue or pain. Electroencephalography (EEG) is a technology which records brain activity. We used it to develop a novel…

Human-Computer Interaction · Computer Science 2015-05-29 Jérémy Frey , Aurélien Appriou , Fabien Lotte , Martin Hachet

Volume is a natural geometric measure for comparing polyhedral relaxations of non-convex sets. Speakman and Lee gave volume formulae for comparing relaxations of trilinear monomials, quantifying the strength of various natural relaxations.…

Optimization and Control · Mathematics 2018-10-18 Emily Speakman , Han Yu , Jon Lee
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