Results 121 to 130 of about 802,182 (218)

Identification of the individual cardiac contraction threshold during high‐frame‐rate stress echocardiography

Experimental Physiology, EarlyView.
Abstract The clinical assessment of cardiovascular function during exercise using stress echocardiography is essential for accurate cardiac diagnosis. However, normal limitations of cardiac deformation responses to increasing physical exertion remain poorly understood.
Fabian Spahiu, Max Hagemann, Michelle Ottlik, Moritz Lampkemeyer, Eric J. Stöhr   +4 more
wiley   +1 more source

The Reliability of Automated Three-Dimensional Echocardiography-HeartModel^A.I. Versus 2D Echocardiography Simpson Methods in Evaluation of Left Ventricle Volumes and Ejection Fraction in Patients With Left Ventricular Dysfunction. [PDF]

Med Arch, 2022
Naser N, Stankovic I, Neskovic A.
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

Accuracy of Routine 2D Echocardiography to Estimate Patent Ductus Arteriosus Type and Dimension and Predict Device Selection for Successful PDA Occlusion. [PDF]

J Saudi Heart Assoc, 2021
Galal MO, Ahmad Z, Hussain A, Sharfi M, El Mahdi Y, El Khattab F, Alkouatli A, Abou Zahr R.   +7 more
europepmc   +1 more source

Determinants of maximal oxygen uptake in highly trained females and males: a mechanistic study of sex differences using advanced invasive methods

The Journal of Physiology, EarlyView.
Abstract figure legend The results from this study show that maximal cardiac output, stroke volume and leg blood flow are similar between highly trained females and males after normalisation to lean body mass (LBM). However, the 10% higher haemoglobin concentration ([Hb]) and arterial O2 content in males result in higher systemic and leg O2 delivery ...
Øyvind Skattebo, Marcos Martin‐Rincon, Bjarne Rud, Joachim Nielsen, Lars Henrik N. Hegg, Andreas V. Kleive, Niels Ørtenblad, Øyvind Sandbakk, Robert Boushel, Hans‐Christer Holmberg, Jose A.L. Calbet, Jostein Hallén   +11 more
wiley   +1 more source

2D-echocardiography vs cardiac MRI strain: a prospective cohort study in patients with HER2-positive breast cancer undergoing trastuzumab. [PDF]

Cardiovasc Ultrasound, 2021
Bouwer NI, Liesting C, Kofflard MJM, Brugts JJ, Kock MCJ, Kitzen JJEM, Levin MD, Boersma E.   +7 more
europepmc   +1 more source

Three-dimensional color Doppler flow assessment of ischemic mitral regurgitation

, 2010
Purpose. Volume-rendered images of the mitral valve apparatus have enabled visualization of the MV leaflets, orifice, and submitral apparatus in a manner that is not possible using conventional 2-dimensional echocardiography.
VITARELLI, Antonino, IORIO G, PADELLA V, NGUYEN, BICH LIEN, CAPOTOSTO, LIDIA, D'ORAZIO, SIMONA, BARILLÀ F., CARANCI, FIORELLA, BATTAGLIA, DANIELA, ALESSANDRONI L   +9 more
core  

Contrast-enhanced echocardiography for the diagnosis of apical hypertrophic cardiomyopathy

, 2005
The echocardiographic diagnosis of apical hypertrophic cardiomyopathy can be difficult in patients with poor acoustic windows. However, contrast-enhanced echocardiography can provide better images in these patients and lead to the correct diagnosis.
Alam S.E., Abchee A.B., Moukarbel G.V.
core   +1 more source

4D ultrasound reveals regional left atrial strain remodelling in a murine model of reversible pressure overload

The Journal of Physiology, EarlyView.
Abstract figure legend Traditional planar imaging approaches of the left atrium do not capture complex geometry. Four‐dimensional imaging allows the acquisition of 3D data + time to visualize left atrial geometry and kinematics. We designed an advanced analysis technique to investigate left atrial biomechanics in a model of pressure overload and ...
John P. Salvas, Thomas Moore‐Morris, Craig J. Goergen, Pierre Sicard   +3 more
wiley   +1 more source

Presenting novel 2D echocardiographic views for pulmonary valve assessment in tetralogy of fallot patients

BMC Cardiovascular Disorders
Background Tetralogy of Fallot (TOF) is considered one of the most common surgically repaired congenital heart conditions. Continuous improvements in surgical techniques have aimed at preserving the pulmonary valve (PV).
Ehsan Aghaei Moghadam, Mohammad Reza Mirzaaghayan, Hani Milani, Hosein Ghasempour, Niloufar Torkan, Mohammadsadegh Talebi Kahdouei   +5 more
doaj   +1 more source