Epicardial potentials computed from the body surface potential map using inverse electrocardiography and an individualised torso model improve sensitivity for acute myocardial infarction diagnosis
نویسندگان
چکیده
منابع مشابه
Body Surface Distributions of Repolarization Potentials After Acute Myocardial Infarction
Isopotential body surface distributions derived from 14 subjects with acute anterior and 14 patients with acute inferior myocardial infarction were studied to examine three possible difficulties with STsegment summation methods as used for evaluation of infarction severity. First, recorded sums of potentials recorded from 150 electrodes placed on anterior and posterior thoracic surfaces and fro...
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To improve the specificity of biochemical markers of myocardial infarction (MI) a method to measure cardiac troponin-I (CTn-I) was developed. CTn-I is a protein unique to cardiac muscle and is released after MI. Consecutive 150 patients admitted to the coronary care unit was studied. Value of CTn-I was determined in all samples. CTn-I concentration in the MI patients group was increased com...
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This paper demonstrates quantitatively, using streamlined mathematics, how the transmembrane ionic currents in individual cardiac muscle cells act to produce the body surface potentials of the electrocardiogram (ECG). From fundamental principles of electrostatics, anatomy, and physiology, one can characterize the strength of apparent dipoles along a wavefront of depolarization in a local volume...
متن کاملDiagnostic Methods Coronary Artery Disease
We have developed computer algorithms that enable epicardial potential distributions to be calculated from electrocardiographic body surface data. To validate this inverse transformation we obtained body surface maps during the ST segment in 55 patients with acute infarction who subsequently underwent coronary arteriography and we constructed epicardial ST segment potential distributions for ea...
متن کاملSensitivity of the Electrocardiography Inverse Solution to the Torso Conductivity Uncertainties
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ژورنال
عنوان ژورنال: European Heart Journal: Acute Cardiovascular Care
سال: 2016
ISSN: 2048-8726,2048-8734
DOI: 10.1177/2048872616671010