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1. (WO2017040581) METHODS AND SYSTEMS FOR IDENTIFYING AND MAPPING CARDIAC ACTIVATION WAVEFRONTS

Pub. No.:    WO/2017/040581    International Application No.:    PCT/US2016/049580
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Thu Sep 01 01:59:59 CEST 2016
IPC: A61B 5/00
A61B 5/042
Applicants: ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC.
Inventors: HAN, Dongfeng
AFONSO, Valtino X.
YANG, Chin-Ann
MORGAN, Dennis J.
PAPPONE, Carlo
Title: METHODS AND SYSTEMS FOR IDENTIFYING AND MAPPING CARDIAC ACTIVATION WAVEFRONTS
Abstract:
A map of cardiac activation wavefronts can be created from a plurality of mesh nodes, each of which is assigned a conduction velocity vector. Directed edges are defined to interconnect the mesh nodes, and weights are assigned to the directed edges, thereby creating a weighted directed conduction velocity graph. A user can select one or more points within the weighted directed conduction velocity graph (which do not necessarily correspond to nodes), and one or more cardiac activation wavefronts passing through these points can be identified using the weighted directed conduction velocity graph. The cardiac activation wavefronts can then be displayed on a graphical representation of the cardiac geometry.