Visualization of turn-back loops resulting in ventricular tachycardia via pseudo-activation map

• Main Authors: DECHY RODZULER, CYNTHIA, HOYLAND PAUL, AUDIERE FREDERIC
• Format: Patent
• Language: Chinese; English
• Published: 25.10.2022
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

The title of the invention is visualization of a turn-back loop resulting in ventricular tachycardia via a pseudo-activation map. Systems and methods for visualizing a turn-back loop in a heart via a pseudo-activation map are disclosed. The disclosed techniques include receiving an ECG data set and a corresponding pacing site. Each of the sets is generated by pacing cardiac tissue at a respective one of the pacing sites. The disclosed technique further includes calculating a correlation gradient representing a morphological change in a set of ECG data across respective adjacent ones of the pacing sites in the set of ECG data. A core region associated with the turn-back loop is identified based on the calculated correlation gradient. Then, one or more pseudo activation maps are generated relative to the identified core region. 本发明题为"经由伪激活映射图可视化导致室性心动过速的折返环路"。本发明公开了用于经由伪激活映射图可视化心脏中的折返环路的系统和方法。所公开的技术包括接收ECG数据集和相应起搏位点。所述集合中的每个集合通过在所述起搏位点中的相应位点处起搏心脏组织来生成。所公开的技术还包括计算表示跨所述ECG数据的所述集合中所述起搏位点中的相应相邻位点的ECG数据集的形态变化的相关性梯度。