Results 71 to 80 of about 265,980 (293)

In Vivo Pulse Wave Measurement Through a Multimode Fiber Diffuse Speckle Analysis System

Frontiers in Physics, 2021
Continuous monitoring of in vivo pulsatile blood flow and pulse wave velocity (PWV) is important for clinical applications. These parameters are correlated with physiological parameters, such as blood pressure and elasticity of blood vessels. A multimode
Zhongshuai Teng, Feng Gao, Feng Gao, Hua Xia, Wenliang Chen, Chenxi Li, Chenxi Li   +6 more
doaj   +1 more source

Aortic frequency response determination via bioimpedance plethysmography

, 2019
Objective: Arterial stiffness is an important marker to predict cardio vascular events. Common measurement techniques to determine the condition of the aorta are limited to the acquisition of the arterial pulse wave at the extremities.
Hauschild, Sebastian, Kusche, Roman, Lindenberg, Arthur-Vincent, Ryschka, Martin   +3 more
core   +1 more source

Selection Strategies for Flexible Pressure Sensor Electrode Materials Toward Ultrafast Response

Advanced Functional Materials, EarlyView.
This study reveals, for the first time, how the electrode–organic interface governs the temporal performance of flexible pressure sensors. By pairing high‐conductivity CVD PEDOT with commonly used metal electrodes, the authors demonstrate that interfacial energy alignment dictates microsecond‐scale response, providing a straightforward design strategy ...
Jinwook Baek, Yuxuan Zhang, Hyeondong Yang, Minyoung Kim, Pavlos P. Vlachos, Jeongok Choe, Bo‐Gyu Bok, Kejie Zhao, Han‐Wook Song, Min‐Seok Kim, Martin Byung‐Guk Jun, Sunghwan Lee   +11 more
wiley   +1 more source

Clinical Associations of Vascular Stiffness, Microvascular Dysfunction, and Prevalent Cardiovascular Disease in a Black Cohort: The Jackson Heart Study

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020
Background Measures of vascular dysfunction are related to adverse cardiovascular disease (CVD) outcomes in non‐Hispanic, White populations; however, data from Black individuals are limited.
Leroy L. Cooper, Solomon K. Musani, Josiah A. Moore, Victoria A. Clarke, Yuichiro Yano, Keith Cobbs, Connie W. Tsao, Javed Butler, Michael E. Hall, Naomi M. Hamburg, Emelia J. Benjamin, Ramachandran S. Vasan, Gary F. Mitchell, Ervin R. Fox   +13 more
doaj   +1 more source

The study of vascular wall stiffness in patients with arterial hypertension depending on some factors of risk and associated clinical conditions [PDF]

КардиоСоматика, 2019
Aim. To study the effect of gender, age, duration of disease and different forms of ischemic heart disease on the stiffness of the vascular wall in patients with arterial hypertension by determining the propagation velocity of the pulse wave.
Larisa A. Khaisheva, Sergey V. Shlyk, Azat S. Samakaev, Svetlana E. Glova, Anna A. Pirozhenko, Liudmila Yu. Samokhina   +5 more
doaj   +1 more source

Viscoelasticity‐Induced Controllable Periodic Meso‐Textures of Liquid Crystal Polymers in Additive Manufacturing

Advanced Functional Materials, EarlyView.
Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou, Jiongyi Yan, Dick F. Firdaus, Amy Jin, Jiaxuan Li, Shushan Wang, Ran Chen, Xudong Tao, Zehao Ji, Yi Liu, Zichen Wang, Christos Margadji, Mark Kotter, J. Axel Zeitler, George G. Malliaras, Ronan Daly, Andrew Gleadall, Sebastian W. Pattinson   +17 more
wiley   +1 more source

Validating tomographic model with broad-band waveform modelling: an example from the LA RISTRA transect in the southwestern United States [PDF]

, 2007
Traveltime tomographic models of the LA RISTRA transect produce excellent waveform fits if we amplify the damped images. We observe systematic waveform distortions across the western edge of the Great Plains from South American events, starting about 300
Helmberger, Don. V., Song, Teh-Ru Alex
core   +1 more source

Central Aortic Pressure Influences Pulse Wave Velocity [PDF]

Hypertension, 2002
To the Editor: The study reported by Lantelme and colleagues1 suggests that increasing heart rate is independently associated with higher aortic pulse wave velocity (PWV). We are concerned that the authors of this study have neither addressed the impact of central aortic pressure changes on PWV nor the presence of potential bias in their study.
Andrew, Zambanini, Simon A, McG Thom, Alun D, Hughes, Kim H, Parker   +3 more
openaire   +2 more sources

Adaptive 4D‐Printed Vascular Stents With Low‐Temperature‐Activated and Intelligent Deployment

Advanced Functional Materials, EarlyView.
Microarchitected coronary artery stents were fabricated using a polycaprolactone (PCL)‐based shape memory polymer (SMP) composite via projection micro‐stereolithography (PµSL) 4D printing. By incorporating diethyl phthalate (DEP) as a plasticizer, the thermal transition temperature (Ttran) was modulated to about 37°C, enabling rapid and autonomous ...
Yannan Li, Yifan Pan, Chikahiro Imashiro, Chaolun Xu, Jianxian He, Jingao Xu, Kewei Song, Ze Zhang, Chen Gao, Junbo Jiang, Runhuai Yang, Kayo Hirose, Shinjiro Umezu   +12 more
wiley   +1 more source

Abnormal wave reflections and left ventricular hypertrophy late after coarctation of the aorta repair [PDF]

, 2017
Patients with repaired coarctation of the aorta are thought to have increased afterload due to abnormalities in vessel structure and function. We have developed a novel cardiovascular magnetic resonance protocol that allows assessment of central ...
Khushnood, Abbas, Muthurangu, Vivek, Pandya, Bejal, Quail, Michael A, Segers, Patrick, Short, Rebekah, Steeden, Jennifer A, Taylor, Andrew M   +7 more
core   +2 more sources