Noninvasive Estimation of the Electrohysterographic Action-Potential Conduction Velocity
نویسندگان
چکیده
منابع مشابه
Estimation of Peripheral Nerve Conduction Velocity Distributions
A complete and accurate description of the conduction properties of the entire population of nerve fibers within a peripheral nerve bundle has long been an important objective of clinical neuromuscular electrophysiology. Access to such information would increase the sensitivity and specificity of neuromuscular electrodiagnostics, and provide improved means of assessing nerve development, growth...
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A necessary prerequisite of malignant arrhythmias is the elevated repolarisation dispersion (RD) of the ventricular myocardium. In this study, by the use of numerical heart and thorax models the RD properties were analyzed as a function of realistic action potential duration (APD) and activation propagation velocity (CV) changes taken from recent experimental studies of normal and heart failure...
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Electromechanical wave imaging is a novel technique for the noninvasive mapping of conduction waves in the left ventricle through the combination of ECG gating, high frame rate ultrasound imaging and radio-frequency (RF)-based displacement estimation techniques. In this paper, we describe this new technique and characterize the origin and velocity of the wave under distinct pacing schemes. Firs...
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OBJECTIVE The initiation of treatment for women with threatening preterm labor requires effective distinction between true and false labor. The electrohysterogram (EHG) has shown great promise in estimating and classifying uterine activity. However, key issues remain unresolved and no clinically usable method has yet been presented using EHG. Recent studies have focused on the propagation veloc...
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The tubular heart of tunicates is composed of a single layer of myoendothelial cells. The direction of contraction reverses every few minutes. The conduction times in both directions are the same. Conduction velocity was greatest in the middle of the arms of the V-shaped heart and slowest in the apex. The greater the heart length, the greater was the conduction velocity. The Q(10) of conduction...
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ژورنال
عنوان ژورنال: IEEE Transactions on Biomedical Engineering
سال: 2010
ISSN: 0018-9294
DOI: 10.1109/tbme.2010.2049111