Time-frequency interpretation of ultra-high-frequency QRS components

Author

Jurak, P. ; Halamek, J. ; Leinveber, P. ; Reichlova, Tereza ; Plesinger, Filip ; Vesely, Petr ; Vondra, V. ; Klimes, Petr ; Sumbera, Josef ; Zeman, Karel ; Novak, Martin

Author_Institution

Inst. of Sci. Instrum., Brno, Czech Republic

fYear

2014

fDate

25-28 May 2014

Firstpage

75

Lastpage

76

Abstract

This paper presents a method for time-frequency representation of ultra-high-frequency components in the QRS complex in high-sensitivity and high-frequency electrocardiography signal measurement. Time-frequency interpretation forms shapes that look like fire - FLAMES. The width, intensity and position of FLAMES characterise the electrical properties of the human heart. FLAMES are able to differentiate electrical changes during asynchronous heart muscle activation and identify changes in electrical activation during heart ischemia, infarctions and structural changes of the myocardium. The difference in FLAMES is demonstrated in healthy young subject and heart-failure subject.

Keywords

bioelectric potentials; diseases; electrocardiography; medical signal processing; muscle; sensitivity; time-frequency analysis; FLAMES characteristics; asynchronous heart muscle activation; electrical activation; electrical changes; electrical properties; heart ischemia; heart-failure subject; high-frequency electrocardiography signal measurement; high-sensitivity electrocardiography signal measurement; human heart; infarctions; myocardium; structural changes; time-frequency interpretation; ultrahigh-frequency QRS components; Electrocardiography; Fires; Heart; Myocardium; Oscillators; Shape; Time-frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Cardiovascular Oscillations (ESGCO), 2014 8th Conference of the European Study Group on

Conference_Location

Trento

Type

conf

DOI

10.1109/ESGCO.2014.6847526

Filename

6847526