Transformation of Vectorcardiogram Due to Gravitation Alteration

Topics:
Pharmeceuticals
Tags:
Aerospace & Defense,
Alteration,
Manufacturing,
Rotation,
Transformation
Source:
Slovak Academy of Sciences

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Overview: A set of vectorcardiograms recorded during the parabolic flights of a laboratory aircraft was analyzed. It was found that alteration of the gravitation resulted in a linear transformation (rotation and dilatation) of the QRS loop, and only in few cases with disturbances of the heart function the changes of the ECG shape were nonlinear and more complicated. Abrupt changes in the depolarization process may be detected by the nonlinearity of the QRS loop transformation. Characteristics of the transformation (eigenvalues, angles of rotation) can be used as indicators of the heart state changes.

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Format: PDF | Size: 201KB | Date: Aug 2003 | Pages: 4

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