Haapalahti et al., 2000 - Google Patents

Magnetocardiographic QT dispersion during cardiovascular autonomic function tests

Haapalahti et al., 2000

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Document ID
11435209161338546535
Author
Haapalahti P
Mäkijärvi M
Korhonen P
Takala P
Montonen J
Salorinne Y
Oikarinen L
Viitasalo M
Toivonen L
Publication year
Publication venue
Basic research in cardiology

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QT dispersion is considered to reflect nonhomogeneity of ventricular repolarization. The autonomic nervous system modulates QT interval duration, but the effect may not be spatially homogenous. Magnetocardiography (MCG) registers the weak magnetik fields …
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    • A61B5/04Detecting, measuring or recording bioelectric signals of the body of parts thereof
    • A61B5/0402Electrocardiography, i.e. ECG
    • A61B5/0452Detecting specific parameters of the electrocardiograph cycle
    • A61B5/0456Detecting R peaks, e.g. for synchronising diagnostic apparatus
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    • A61B5/04Detecting, measuring or recording bioelectric signals of the body of parts thereof
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    • A61B5/0452Detecting specific parameters of the electrocardiograph cycle
    • A61B5/046Detecting fibrillation
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    • A61B5/72Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235Details of waveform analysis
    • A61B5/7239Details of waveform analysis using differentiation including higher order derivatives
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    • A61B5/7285Specific aspects of physiological measurement analysis for synchronising or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal
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    • A61B5/0535Measuring electrical impedance or conductance of a portion of the body impedance plethysmography
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    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY

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