The Harbinger ICD Patient (HIP) study culminated years of research into Wedensky Modulation, a spectral analysis of sub-threshold stimulation to alternating cardiac cycles
This increased ventricular interdependence is manifest as septal bounce on cine SSFP sequences where the interventricular septum variably bows from right to left during the cardiac cycle
as pressures in one ventricle transiently exceed the other (Figure 5).
Systolic strain (S) is defined as the change of the myocardial fiber length during the cardiac cycle
The condition occurs when the leaflets of the mitral valve do not close completely, causing blood to flow backward and leak into the left atrium of the heart during the cardiac cycle
1), (2) It has been available for some time, and been used in the past decade in the evaluation of cranial and spinal CSF flow, demonstrating a mechanical 'coupling between cerebral blood and CSF flows throughout the cardiac cycle
and the temporal coordinated succession of these flows' in normal people.
Over the next five minutes the AV ceased closing, remaining open throughout the cardiac cycle
with absent aortic regurgitation.
Here, an image of the heart at a particular time point in the cardiac cycle
is pieced together from data collected over several heart beats.
At the other end of the cardiac cycle
- systole - blood flows more rapidly, resulting in dispersion of blood components and decreased viscosity.
Richard Klabunde will explain the pressure and volume changes during the cardiac cycle
and the significance of major pressure volume relationships including end systolic (ESPVR), preload recruitable stroke work (PRSW), and end diastolic (EDPVR).
This technology images blood flow in multiple phases of the cardiac cycle
and then calculates volume, velocity, and direction.
The image-based surgical planning consisted of five major steps: acquiring magnetic resonance images of the child's heart at different times in the cardiac cycle
, modeling the preoperative heart anatomy and blood flow, performing virtual surgeries, using computational fluid dynamics to model the proposed postoperative flow, and measuring the distribution of liver-derived hormonal factors and other clinically relevant parameters as feedback to the surgeon.
A few examples of the diverse topics covered in the volumes include acorn worm, air masses and fronts, animal cancer tests, big bang theory, biophysics, buckwheat, cardiac cycle
, dentrification, dragonflies, geotropism, ice age refuges, irrational number, legumes, nuclear winter, oscillations, photocopying, quantum electrodynamics, restoration ecology, set theory, squirrel fish, tartaric acid, tumbleweed, ultraviolet astronomy, weather forecasting, xylotomy, and zodiacal light.
One of the initial findings from this research is that the flow pattern in any given aneurysm does not appear to change during the cardiac cycle
The animated cartoons of heart physiology, together with patient images, ECGs, cardiac cycle
pressure profiles, and, of course, sound are all integrated to give a wonderful tutorial experience.
Although TCE affected neither cardiac cycle
length (474 [+ or -] 18 msec vs.