Method and system to detect premature ventricular contractions in cardiac activity signals

US10874322B2 · kind B2 · utility

Assignee

• PACESETTER, INC. · US

Inventors

• Jong Gill · Valencia, US
• Fujian Qu · San Jose, US
• Neha Malhotra · Los Angeles, US
• Stuart Rosenberg · Santa Clarita, US
• Gene A. Bornzin · Simi Valley, US
• Fady Dawoud · Santa Monica, US

Key dates

• Filing date: May 7, 2018
• Grant date: Dec 29, 2020
• Expiry date: Dec 29, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B5/361
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A computer implemented method and system are provided for detecting premature ventricular contractions (PVCs) in cardiac activity. The method and system obtain cardiac activity (CA) signals for a series of beats, and, for at least a portion of the series of beats, calculate QRS scores for corresponding QRS complex segments from the CA signals. The method and system calculate a variability metric for QRS scores across the series of beats, calculate a QRS complex template using QRS segments from the series of beats, calculate correlation coefficients between the QRS complex template and the QRS complex segments, compare the variability metric to a variability threshold and the correlation coefficients to a correlation threshold, and designate the CA signals to include a predetermined level of PVC burden based on the comparing.