COMPUTING LOCAL PROPAGATION VELOCITIES IN REAL TIME

To perform cardiac mapping.SOLUTION: A method includes, based on respective signals acquired by a plurality of electrodes on an anatomical surface of a heart, computing respective local activation times (LATs) at respective locations of the electrodes. The method further includes, based on the LATs,...

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Main Authors LIOR ZAR, FADY MASSARWI, YOAV BENAROYA, ELAD NAKAR, ELIYAHU RAVUNA, JONATHAN YARNITSKY, LIOR GREENBAUM, LEONID ZAIDES
Format Patent
LanguageEnglish
Japanese
Published 06.12.2022
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Summary:To perform cardiac mapping.SOLUTION: A method includes, based on respective signals acquired by a plurality of electrodes on an anatomical surface of a heart, computing respective local activation times (LATs) at respective locations of the electrodes. The method further includes, based on the LATs, computing respective directions of electrical propagation at the locations. The method further includes selecting pairs of adjacent ones of the electrodes such that, for each of the pairs, a vector joining the pair is aligned, within a predefined threshold degree of alignment, with the direction of electrical propagation at the location of one of the electrodes belonging to the pair. The method further includes associating respective bipolar voltages measured by the pairs of electrodes with a digital model of the anatomical surface. Other examples are also described.SELECTED DRAWING: Figure 1 【課題】心臓マッピングを行うこと。【解決手段】方法は、心臓の解剖学的表面上の複数の電極によって獲得されたそれぞれの信号に基づいて、電極のそれぞれの位置におけるそれぞれの局所興奮時間(LAT)を計算することを含む。この方法は、LATに基づいて、これらの位置における電気伝播のそれぞれの方向を計算することを更に含む。この方法は、電極のうちの隣接するもののペアを、ペアの各々について、ペアを結合するベクトルが、所定の閾値整列度内で、ペアに属する電極のうちの1つの位置における電気伝播の方向と整列されるように選択することを更に含む。この方法は、電極のペアによって測定されたそれぞれのバイポーラ電圧を解剖学的表面のデジタルモデルと関連付けることを更に含む。他の実施形態も、記載されている。【選択図】図1
Bibliography:Application Number: JP20220083634