Results 111 to 120 of about 42,793 (247)

Prediction of Post-stenting Lumen Dimensions Using High-Definition Intravascular Ultrasound. [PDF]

JACC Adv
Wu W, Zhao S, Trivedi YV, Vijayarao SS, Patel P, Singh PV, Miriyala V, Alam MF, Chikatimalla R, Shaar A, Issa Y, Lee C, Brilakis ES, Dangas G, Chatzizisis YS.   +14 more
europepmc   +1 more source

Uncovering the impact of the cardiovascular system on cerebrovascular health using MRI

Experimental Physiology, EarlyView.
Abstract Human cerebrovasculature is finely tuned to enable local changes in blood flow to meet the brain's demands, whilst protecting the brain from systemic changes in blood pressure, both acutely during a heartbeat and chronically over time. This review summarises cerebrovascular structure and function, their role in disease and neurodegeneration ...
Ian D. Driver, Kevin Murphy
wiley   +1 more source

Intravascular Ultrasound-Guided "Move the Cap" Technique for Heavily Calcified Ostial Chronic Total Occlusion. [PDF]

JACC Case Rep
Sudo K, Yasuda M, Tanaka K, Yamasaki T, Tsutsui Y, Nishimura Y, Watanabe S, Iwamoto M, Watanabe H, Okamura A.   +9 more
europepmc   +1 more source

Increases in skin perfusion and blood oxygen in the non‐exercising human limbs during exercise in the heat: Implications for control of circulation

Experimental Physiology, EarlyView.
Abstract Blood flow in the inactive limb tissues and skin is widely thought to decline during incremental exercise to exhaustion due to augmented sympathoadrenal vasoconstrictor activity, but direct evidence to support this view is lacking. Here, we investigated the inactive‐forearm haemodynamic (Q̇forearm${\dot{Q}}_{\mathrm{forearm}}$) and oxygenation
Steven J. Trangmar, José González‐Alonso   +1 more
wiley   +1 more source

High-speed multimodal intravascular ultrasound and photoacoustic imaging system for atherosclerosis characterization. [PDF]

Biomed Opt Express
Jiang Y, Liu B, Qiu S, Zeng Y, Jin W, Li Y, Lu G, He W, Zhou Q, Chen Z.   +9 more
europepmc   +1 more source

Pulmonary arterial mechanoreceptors mediate sustained sympathoexcitation during high altitude hypoxia in humans

Experimental Physiology, EarlyView.
Abstract Sympathetic nervous system activation is a hallmark of high‐altitude hypoxia, yet the afferent mechanisms remain incompletely defined. We examined the relative contributions of pulmonary arterial mechanoreceptors and carotid chemoreceptors – two excitatory pathways co‐activated by hypoxia – to sustained sympathoexcitation at altitude.
Michiel T. Ewalts, Lydia L. Simpson, Jack S. Talbot, Elliott J. Jenkins, Travis D. Gibbons, Connor A. Howe, Lauren E. Maier, Emily R. Vanden Berg, Alex M. Williams, Philip N. Ainslie, Samuel J. Oliver, Craig D. Steinback, Mike Stembridge, Jonathan P. Moore   +13 more
wiley   +1 more source

Digital Ischemia Following Radial Access Unmasking Systemic Sclerosis: Characteristic Intravascular Ultrasound Findings. [PDF]

JACC Case Rep
Yamamoto S, Nakajima A, Nakamura S.
europepmc   +1 more source

Daily hot‐water immersion preserves altitude‐induced haemoglobin mass expansion following descent independent of erythropoietin

Experimental Physiology, EarlyView.
Abstract High‐altitude exposure increases haemoglobin mass (Hbmass), a key determinant of arterial oxygen‐carrying capacity, but following descent this adaptation can regress toward baseline within 7 days. Long‐term heat acclimation has emerged as an alternative stimulus for Hbmass expansion; however, whether post‐altitude passive‐heat exposure can ...
Elliott J. Jenkins, Jodie L. Koep, Andrew J. M. Douglas, Lauren E. Maier, Connor A. Howe, Sarah Sheitelman, Liam D. Corr, Christoph Siebenmann, Michael G. Hughes, Joshua C. Tremblay, Philip N. Ainslie, Travis D. Gibbons, Mike Stembridge   +12 more
wiley   +1 more source

Intravascular ultrasound wall shear stress imaging in stented coronary arteries with ultrafast Doppler. [PDF]

Sci Rep
Singh TC, Strassle Rojas S, Shah I, Martín Tempestti J, Veneziani A, Lindsey BD.   +5 more
europepmc   +1 more source

Pulmonary arterial mechanoreceptors modulate exercise‐induced sympathetic activation in healthy humans during moderate‐intensity hypoxic exercise

The Journal of Physiology, EarlyView.
Abstract figure legend This randomized cross‐over trial (N = 12) addressed the hypothesis that selective reduction of pulmonary arterial pressure (i.e. manipulation of pulmonary arterial mechanoreceptor activation) during hypoxic exercise would reduce sympathetic outflow (muscle sympathetic nerve activity (MSNA)) in healthy humans.
Michiel T. Ewalts, Thomas D. Griffiths, Andrew J. M. Douglas, Elliott J. Jenkins, Guto Wyn Hughes, Craig D. Steinback, Lydia L. Simpson, Samuel J. Oliver, Mike Stembridge, Jonathan P. Moore   +9 more
wiley   +1 more source