cardiac cycle


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Related to cardiac cycle: cardiac output, blood pressure, Heart sounds
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Noun1.cardiac cycle - the complete cycle of events in the heart from the beginning of one heart beat to the beginning of the next; an electrical impulse conducted through the heart muscle that constricts the atria which is followed by constriction of the ventricles; "the cardiac cycle can be shown on an electrocardiogram"
oscillation, cycle - a single complete execution of a periodically repeated phenomenon; "a year constitutes a cycle of the seasons"
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References in periodicals archive ?
Unlike FFR, which requires administration of the drug adenosine to maximally vasodilate the heart muscle and then measure the differences in a pressure along a blocked or narrowed artery, iFR relies on measuring the pressure during a specific point in the cardiac cycle.
New technology to identify blockages in heart patients
The ECG trace is used to synchronize the cardiac cycle with cine image acquisition.
MRI in the assessment of congenital heart disease
Engineered to restore natural valve performance, the Perceval valve features a super-elastic stent, which is able to adapt to the movement of the aorta during the cardiac cycle.
United Kingdom : LivaNova Announces Publication of Literature Review Highlighting the Clinical Value and Safety of the Perceval Sutureless Valve for Aortic Valve Replacement
The characteristic findings were reductions in the P wave intensity, increase in QRS amplitude, QT interval and prolongation of cardiac cycle along with ST segment elevation.
SALBUTAMOL: A SUBSTITUENT OF ISOPROTERENOL TO ESTABLISH AN EXPERIMENTAL ANIMAL MODEL TO INDUCE MYOCARDIAL INFARCTION
Method: A total of 20 patients underwent technetium-99m-MIBI SPECT myocardial perfusion imaging using 16-frame per cardiac cycle acquisition.
A COMPARITIVE STUDY OF 16-FRAME AND 8-FRAME GATED SPECT IMAGING FOR DETERMINATION OF LEFT VENTRICULAR VOLUMES AND EJECTION FRACTION
The study will use the Inca PV system, which allows visualization of the complete cardiac cycle in real-time, to monitor ESPVR, EDPVR, Tau and cardiac output.
Millar sells Inca Pressure-Volume (PV) Loop System to the University of Colorado for LVAD heart failure research programme
He then discussed in detail cardiac cycle and ECG, coronary artery system, approach to read ECG, pattern of reading ECG so that one does not miss anything.
Today we can predict, prevent, postpone and treat CVD-Prof. Sheharyar Sheikh
Heart rate variability (HRV) is the beat to beat variation in the cardiac cycle which occurs due to the periodic alterations in the parasympathetic and sympathetic inputs to the heart.
Heart rate variability is reduced in sedentary young females with higher body mass index
This assumption is based upon the fact that at rest the proportion between systolic and diastolic periods of the cardiac cycle is approximately 1/3 and 2/3 for the systole and the diastole respectively.
Mean blood pressure assessment during post-exercise: result from two different methods of calculation
HRV, 24 hour RR intermediate stage standard deviation (SDNN), five minutes average normal cardiac cycle standard deviation in 24 hour (SDANN), 24 hour close together normal cardiac cycle difference value mean square root (rMSSD), the percentage of difference of close together RR intermediate > 50 ms account total RR intermediate (PNN50), high frequency (HF) and low frequency (LF) parameters of patients were observed before and after treatment.
Effect of trimetazidine on heart rate variability in elderly patients with acute coronary syndrome
The velocities recorded upstream of the lesion are displayed for one cardiac cycle in Figures 2 and 3.
The effect of plaque removal on pressure drop and flow rate through an idealized stenotic lesion
A region of interest was placed semiautomatically on the phase-contrast images over a cardiac cycle.
Computational Hemodynamic Analysis for the Diagnosis of Atherosclerotic Changes in Intracranial Aneurysms: A Proof-of-Concept Study Using 3 Cases Harboring Atherosclerotic and Nonatherosclerotic Aneurysms Simultaneously

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