NON-INVASIVE METHODS AND SYSTEMS FOR PRODUCING CARDIAC ELECTROGRAM CHARACTERISTIC MAPS FOR USE WITH CATHETER ABLATION OF VENTRICULAR TACHYCARDIA

Title:

NON-INVASIVE METHODS AND SYSTEMS FOR PRODUCING CARDIAC ELECTROGRAM CHARACTERISTIC MAPS FOR USE WITH CATHETER ABLATION OF VENTRICULAR TACHYCARDIA

Document Type and Number:

WIPO Patent Application WO/2012/139116

Kind Code:

A3

Abstract:

A non-invasive method of producing a three-dimensional cardiac electrogram characteristic map for use in catheter ablation of ventricular tachycardia includes receiving left ventricle three-dimensional image data of a patient's heart; segmenting a left ventricle image of the patient's heart based on the left ventricle three-dimensional image data into scar tissue, normal myocardium tissue and left ventricle cavity regions; determining scar tissue thickness and normal myocardium tissue thickness for a plurality of portions of the left ventricle image of the patient's heart; receiving predetermined data that associate a value of at least one electrogram characteristic to each scar tissue thickness and each normal myocardium tissue thickness for the plurality of portions of said left ventricle image of said patient's heart; and generating the three-dimensional cardiac electrogram characteristic map of the at least one electrogram characteristic corresponding to the left ventricle image of the patient's heart based on the predetermined data

Inventors:

NAZARIAN SAMAN (US)
MILLER CHRISTOPHER (US)
SASAKI TAKESHI (US)

Application Number:

PCT/US2012/032768

Publication Date:

March 14, 2013

Filing Date:

April 09, 2012

Export Citation:

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Assignee:

UNIV JOHNS HOPKINS (US)
NAZARIAN SAMAN (US)
MILLER CHRISTOPHER (US)
SASAKI TAKESHI (US)

International Classes:

A61B5/02; A61B5/055

Foreign References:

US20100312096A1	2010-12-09
US20090161938A1	2009-06-25
US20060253030A1	2006-11-09
US20020087089A1	2002-07-04