Experimental Study of Kinematic Activity of Left Ventricular Myocardium

A method of invasive and non-invasive examination of epicardial motion was tested on domestic pigs ( n =15). The invasive study employed a contact kinematic sensor of the epicardial wall motion, which determined the amplitude, velocity, and angular parameters of examined epicardial region. A non-inv...

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Bibliographic Details
Published in:Bulletin of experimental biology and medicine 2015-10, Vol.159 (6), p.805-808
Main Authors: Bokeriya, O. L., Averina, I. I., Potlovskii, K. G., Glushko, L. A., Mironenko, M. Yu, Donakanyan, S. A., Satyukova, A. S., Mishchenko, A. B., Bokeriya, L. A.
Format: Article
Language:English
Subjects:
Animal Experimentation
Animals
Biomechanical Phenomena
Biomedical and Life Sciences
Biomedicine
Cell Biology
Echocardiography
Electrocardiogram
Electrocardiography
Heart - physiology
Heart Ventricles - diagnostic imaging
Heart Ventricles - pathology
Internal Medicine
Laboratory Medicine
Methods
Myocardial Contraction - physiology
Myocardium - pathology
Pathology
Pericardium - diagnostic imaging
Pericardium - pathology
Pericardium - physiology
Sensors
Sus scrofa
Ventricular Function, Left - physiology
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Summary:A method of invasive and non-invasive examination of epicardial motion was tested on domestic pigs ( n =15). The invasive study employed a contact kinematic sensor of the epicardial wall motion, which determined the amplitude, velocity, and angular parameters of examined epicardial region. A non-invasive assessment of the epicardial kinematics based on echocardiographic 2D Velocity Vector Imaging and ECG recoding used to determine the heart electrical axis. The 4-chamber views were uses to analyze the longitudinal displacements of lateral wall of the left ventricle at the basal, mid, and apical segments. In addition, the radial displacements were determined in short axis projections at basal and apical segments as well as at the level of papillary muscles. The animals with normal or horizontal heart’s electrical axis demonstrated similar displacement of the epicardium along X-axis and in longitudinal direction, while displacement along Y-axis corresponded to that in radial direction. The combined invasive and non-invasive approach in measurement of epicardium motion makes it possible to quantify the kinematic epicardial activity.
ISSN:0007-4888
1573-8221
DOI:10.1007/s10517-015-3081-8