PROPAGATION MAP OF CARDIAC CHAMBER WITH AREAS DEMONSTRATING FRACTIONATED ELECTROGRAMS

To provide a method for characterizing cardiac arrhythmia.SOLUTION: A method includes storing an anatomical map of at least a portion of a surface of a heart. Respective electrogram (EGM) signal amplitudes measured at respective positions on the surface of the heart are stored. Based on the EGM sign...

Full description

Saved in:
Bibliographic Details
Main Authors LIOR BOTZER, ELIYAHU RAVUNA, GUY WEKSELMAN, SIMON RIVRON, NETTA DOV
Format Patent
LanguageEnglish
Japanese
Published 11.10.2021
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:To provide a method for characterizing cardiac arrhythmia.SOLUTION: A method includes storing an anatomical map of at least a portion of a surface of a heart. Respective electrogram (EGM) signal amplitudes measured at respective positions on the surface of the heart are stored. Based on the EGM signal amplitudes, defined are: one or more first regions of the surface in which the EGM signal amplitudes are fractionated, and one or more second regions of the surface in which the EGM signal amplitudes are non-fractionated. A first surface representation is generated for the fractionated EGM signal amplitudes in the first regions. Propagation times are extracted from the non-fractionated EGM signal amplitudes in the second regions, and a second surface representation of the propagation times is derived. The first and second surface representations of the respective first and second regions of the surface, overlaid on the anatomical map, are simultaneously presented.SELECTED DRAWING: Figure 1 【課題】心不整脈を特徴付けるための方法を提供すること。【解決手段】心臓の表面の少なくとも一部分の解剖学的マップを記憶することを含む方法が開示される。心臓の表面上のそれぞれの位置で測定されたそれぞれの電位図(EGM)信号振幅が記憶される。EGM信号振幅に基づいて、表面のうちのEGM信号振幅が細分化されている1つ以上の第1の領域と、表面のうちのEGM信号振幅が細分化されていない1つ以上の第2の領域と、が規定される。第1の領域における細分化されたEGM信号振幅に対する第1の表面表現が生成される。第2の領域における細分化されていないEGM信号振幅から伝播時間が抽出され、伝播時間の第2の表面表現が導出される。解剖学的マップ上に重ね合わされた、表面のそれぞれの第1の領域及び第2の領域の第1の表面表現及び第2の表面表現が同時に提示される。【選択図】図1
Bibliography:Application Number: JP20210051291