title: Construction of intracardiac vectorcardiogram from implantable cardioverter-defibrillator intracardiac electrograms.
abstract: We constructed an intracardiac vectorcardiogram from 3 configurations of intracardiac cardiovertor defibrilator (ICD) electrograms (EGMs). Six distinctive 3 lead combinations were selected out of five leads: can to right ventricular coil (RVC); RVC to superior vena cava coil (SVC); atrial lead tip (A-tip) to right ventricular (RV)-ring; can to RV-ring; RV-tip to RVC, in a patient with dual chamber ICD. Surface spatial QRS-T angle (119.8°) was similar to intracardiac spatial QRS-T angle derived from ICD EGMs combination A (101.3°), B (96.1°), C (92.8°), D (95.2), E (99.0), F (96.2) and median (101.5). Future validation of the novel method is needed.
authors.affiliation: Knight Cardiovascular Institute, Oregon Health and Science University, Portland, OR.
authors.forename: Elyar
authors.initials: E
authors.lastname: Ghafoori
authors.affiliation: Knight Cardiovascular Institute, Oregon Health and Science University, Portland, OR.
authors.forename: Muammar M
authors.initials: MM
authors.lastname: Kabir
authors.affiliation: Medtronic, Inc, Minneapolis, MN.
authors.forename: Jian
authors.initials: J
authors.lastname: Cao
authors.affiliation: Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.
authors.forename: Alexei
authors.initials: A
authors.lastname: Shvilkin
authors.affiliation: Knight Cardiovascular Institute, Oregon Health and Science University, Portland, OR. Electronic address: tereshch@ohsu.edu.
authors.forename: Larisa G
authors.initials: LG
authors.lastname: Tereshchenko
mesh_terms: D000465:Algorithms; D017147:Defibrillators, Implantable; D003936:Diagnosis, Computer-Assisted / Q000295:instrumentation / Q000379:methods*; D022062:Electrophysiologic Techniques, Cardiac / Q000295:instrumentation* / Q000379:methods*; D006801:Humans; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014672:Vectorcardiography / Q000295:instrumentation* / Q000379:methods*
keywords: Implantable cardioverter defibrillator; Intracardiac electrogram; Vectorcardiography