Results 51 to 60 of about 111,366 (373)

Effect of propranolol on regional myocardial function in anesthetized open-chest dogs with myocardial ischemia [PDF]

open access: yes, 1978
Effects of propranolol on ischemic segmental function were studied in anesthetized open-chest dogs. Two segment-length gauges were used for measuring the regional myocardial function: one was sutured on to the left ventricular surface perfused by the ...
Haraoka, Shoichi   +7 more
core   +1 more source

Systole (Systole) elongata Zerova 1970

open access: yes, 2019
Systole (Systole) elongata Zerova Material. Paratypes: 24 ♀, “Turkmenskaya SSR, Repetek, ex seeds Schurmannia kureli, coll. 31.05.1967 (V. A. Tryapitzin leg.)” (SIZK).
Zerova, M. D.   +5 more
openaire   +1 more source

Investigating the effect of trigger delay on cardiac 31P MRS signals

open access: yesScientific Reports, 2021
The heart’s geometry and its metabolic activity vary over the cardiac cycle. The effect of these fluctuations on phosphorus (31P) magnetic resonance spectroscopy (MRS) data quality and metabolite ratios was investigated.
Stefan Wampl   +6 more
doaj   +1 more source

Probing cardiomyocyte mobility with multi-phase cardiac diffusion tensor MRI.

open access: yesPLoS ONE, 2020
PurposeCardiomyocyte organization and performance underlie cardiac function, but the in vivo mobility of these cells during contraction and filling remains difficult to probe.
Kévin Moulin   +4 more
doaj   +1 more source

Free subgroups of $3$-manifold groups

open access: yes, 2020
We show that any closed hyperbolic $3$-manifold $M$ has a co-final tower of covers $M_i \to M$ of degrees $n_i$ such that any subgroup of $\pi_1(M_i)$ generated by $k_i$ elements is free, where $k_i \ge n_i^C$ and $C = C(M) > 0$.
Belolipetsky, Mikhail, Dória, Cayo
core   +1 more source

Quantitative three-dimensional cardiovascular magnetic resonance myocardial perfusion imaging in systole and diastole

open access: yesJournal of Cardiovascular Magnetic Resonance, 2014
BackgroundTwo-dimensional (2D) perfusion cardiovascular magnetic resonance (CMR) remains limited by a lack of complete myocardial coverage. Three-dimensional (3D) perfusion CMR addresses this limitation and has recently been shown to be clinically ...
M. Motwani   +7 more
semanticscholar   +1 more source

Systole (Systole) complanata Zerova 1972

open access: yes, 2019
Systole (Systole) complanata Zerova, 1972 (fig. 3, 1 –6) Zerova, 1972: 924; 1995: 285; Zerova, Seryogina, 1994: 139, 214. Material. 3 ♀, 1 Ơ, Iran, Lorestan, Zaghe region, June 2011 (Fateme Pirouzi leg.). Type material examined. Holotype: ♀, “ Tajikistan, Horog, ex seeds Heracleum lehnannianum Bng., coll.
Zerova, M. D.   +5 more
openaire   +1 more source

P46 Haemodynamics Determinants of Central Pressure during Systole

open access: yesArtery Research, 2020
The influence of arterial and ventricular parameters on the main fiducial pressure points and index during systole has been investigated using a mix of in silico and in vivo data.
Samuel Vennin   +6 more
doaj   +1 more source

Cardiac Electromechanical Activity in Healthy Cats and Cats with Cardiomyopathies

open access: yesSensors, 2023
Optimal heart function depends on perfect synchronization between electrical and mechanical activity. In this pilot study, we aimed to investigate the electromechanical activity of the heart in healthy cats and cats with cardiomyopathy with ...
Maja Brložnik   +4 more
doaj   +1 more source

Changes in left ventricular electromechanical relations during targeted hypothermia

open access: yesIntensive Care Medicine Experimental, 2020
Background Targeted hypothermia, as used after cardiac arrest, increases electrical and mechanical systolic duration. Differences in duration of electrical and mechanical systole are correlated to ventricular arrhythmias.
Kristin Wisløff-Aase   +5 more
doaj   +1 more source

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