Results 71 to 80 of about 35,344 (280)
A computational study of viscoelastic blood flow in an arteriovenous fistula [PDF]
arXiv, 2020 A finite element analysis of flows of an Oldroyd-B fluid is developed, to simulate blood flow in an arteriovenous fistula. The model uses a combination of a standard conforming finite element approximation for the momentum equation, and the discontinuous Galerkin method, with upwinding, for the equation governing the evolution of the extra stress.
arxiv
Deep denoising autoencoder-based non-invasive blood flow detection for arteriovenous fistula [PDF]
arXiv, 2023 Clinical guidelines underscore the importance of regularly monitoring and surveilling arteriovenous fistula (AVF) access in hemodialysis patients to promptly detect any dysfunction. Although phono-angiography/sound analysis overcomes the limitations of standardized AVF stenosis diagnosis tool, prior studies have depended on conventional feature ...
arxiv
Epileptic Disorders, EarlyView.Abstract We performed a systematic review of the localizational value of disturbances of self‐integration, depersonalization and forced thinking in focal epilepsy with the aim to summarize the state‐of‐the‐art anatomo‐clinical correlations in the field and help guide interpretation of ictal semiology within the framework of pre‐surgical evaluation. The
Lars Etholm +5 more
wiley +1 more source
High fidelity blood flow in a patient-specific arteriovenous fistula [PDF]
arXiv, 2020 An arteriovenous fistula, created by artificially connecting segments of a patient's vasculature, is the preferred way to gain access to the bloodstream for kidney dialysis. The increasing power and availability of supercomputing infrastructure means that it is becoming more realistic to use simulations to help identify the best type and location of a ...
arxiv
Simultaneous self-organization of arterial and venous networks driven by the physics of global power optimization [PDF]
arXiv, 2023 Understanding of vascular organization is a long-standing problem in quantitative biology and biophysics and is essential for the growth of large cultured tissues. Approaches are needed that (1) make predictions of optimal arteriovenous networks in order to understand the natural vasculatures that originate from evolution (2) can design vasculature for
arxiv
Ictal scalp EEG patterns are shaped by seizure etiology in temporal lobe epilepsy
Epilepsia Open, EarlyView.Abstract Objective To investigate how etiology and seizure localization influence ictal scalp electroencephalographic (EEG) patterns in temporal lobe epilepsy (TLE). Methods We retrospectively analyzed ictal EEG features from 504 focal seizures recorded in 189 TLE patients with various etiologies who underwent resective surgery.
Sha Xu +13 more
wiley +1 more source
HandRefiner: Refining Malformed Hands in Generated Images by Diffusion-based Conditional Inpainting [PDF]
arXiv, 2023 Diffusion models have achieved remarkable success in generating realistic images but suffer from generating accurate human hands, such as incorrect finger counts or irregular shapes. This difficulty arises from the complex task of learning the physical structure and pose of hands from training images, which involves extensive deformations and ...
arxiv
Analysis of retinal and choroidal images measured by laser Doppler holography [PDF]
, 2019 Laser Doppler holography (LDH) is a full-field imaging technique that was recently used in the human eye to reveal blood flow contrasts in the retinal and choroidal vasculature non-invasively, and with high temporal resolution. We here demonstrate that the ability of LDH to perform quantitative flow measurements with high temporal resolution enables ...
arxiv +1 more source
Fraction‐variant beam orientation optimization for spatiotemporal fractionation schemes
Medical Physics, EarlyView.Abstract Background Spatiotemporal fractionation schemes aim at partial hypofractionation in the tumor along with more uniform fractionation in the normal tissue. This is achieved by delivering distinct dose distributions in different fractions, where each fraction contributes with high doses to complementary parts of target volume, while similar dose ...
Nathan Torelli, Jan Unkelbach
wiley +1 more source
Pulmonary arteriovenous malformations diagnosed through hemoptysis: A case report
Radiology Case Reports, 2021 There have been few reports of pulmonary arteriovenous malformations complicated by hemoptysis. Herein, we present our experience and provided a review of the literature.
Risako Minamikawa, M.D. +4 more
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