Results 161 to 170 of about 1,221,273 (380)

Global Aortic Pulse Wave Velocity is Unchanged in Bicuspid Aortopathy With Normal Valve Function but Elevated in Patients With Aortic Valve Stenosis: Insights From a 4D Flow MRI Study of 597 Subjects

open access: yesJournal of Magnetic Resonance Imaging, Volume 57, Issue 1, Page 126-136, January 2023., 2023
Background Aortopathy is common with bicuspid aortic valve (BAV), and underlying intrinsic tissue abnormalities are believed causative. Valve‐mediated hemodynamics are altered in BAV and may contribute to aortopathy and its progression. The contribution of intrinsic tissue defects versus altered hemodynamics to aortopathy progression is not known ...
Ethan M.I. Johnson   +10 more
wiley   +1 more source

Arterial Stiffness in Chronic Kidney Disease and End-Stage Renal Disease

open access: yesBlood Purification, 2018
Accelerated ageing is observed in patients with chronic kidney disease (CKD)/end-stage renal disease. Premature vascular aging and arterial stiffening are the most characteristic features of this “progeria” that is already observed in those with the ...
G. London
semanticscholar   +1 more source

Implantable Biophotonic Device for Wirelessly Cancer Real‐Time Monitoring and Modulable Treatment

open access: yesAdvanced Science, EarlyView.
A wirelessly implantable biophotonic device is capable of distinguishing tumors and evaluating their progression by monitoring sO2 levels indicative of the tumor hypoxic microenvironment. Additionally, this device is not only employed for in situ PDT but also for concurrent monitoring of chemotherapy and PDT progress, thereby enabling the evaluation ...
Renhao Nie   +8 more
wiley   +1 more source

Comparison of 2D and 4D Flow MRI in Neonates Without General Anesthesia

open access: yesJournal of Magnetic Resonance Imaging, Volume 57, Issue 1, Page 71-82, January 2023., 2023
Background Neonates with critical congenital heart disease require early intervention. Four‐dimensional (4D) flow may facilitate surgical planning and improve outcome, but accuracy and precision in neonates are unknown. Purpose To 1) validate two‐dimensional (2D) and 4D flow MRI in a phantom and investigate the effect of spatial and temporal resolution;
Pia Sjöberg   +7 more
wiley   +1 more source

Phase changes of the flow rate in the vertebral artery caused by debranching thoracic endovascular aortic repair: effects of flow path and local vessel stiffness on vertebral arterial pulsation [PDF]

open access: yesarXiv
Despite numerous studies on cerebral arterial blood flow, there has not yet been a comprehensive description of hemodynamics in patients undergoing debranching thoracic endovascular aortic repair (dTEVAR), a promising surgical option for aortic arch aneurysms.
arxiv  

Wearable PZT Piezoelectric Sensor Device for Accurate Arterial Pressure Pulse Waveform Measurement

open access: yesAdvanced Electronic Materials, EarlyView.
This work presents a wearable device for the non‐invasive measurement of radial arterial pressure pulse waveforms, incorporating a highly sensitive flexible Lead Zirconate Titanate (PZT) piezoelectric sensor and an optimized tightness‐free attachment method to maximize the sensitivity.
Minyu Li   +3 more
wiley   +1 more source

Pulse Pressure, Arterial Stiffness, and Drug Treatment of Hypertension [PDF]

open access: bronze, 2001
L.M.A.B. Van Bortel   +2 more
openalex   +1 more source

Designed Biomaterial‐Enhanced Cell Transplantation for Neural Tissue Engineering

open access: yesAggregate, EarlyView.
Biomaterials offer a promising solution for cell transplantation in the central nervous system by creating a protective environment that enhances cell survival, integration, and functional recovery in preclinical models of neurological disorders. ABSTRACT Cell transplantation therapy in the central nervous system is hindered by limited survival and ...
Yun Tang   +3 more
wiley   +1 more source

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