Machine Learning ECG Classification for VT and SWCT Differentiation

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Solution Overview

Problem

Existing manual methods for differentiating ventricular tachycardia (VT) and supraventricular wide complex tachycardia (SWCT) in electrocardiograms (ECGs) are dependent on clinician expertise, time-consuming, and prone to errors, especially in high-pressure clinical settings.

Innovation Solution

A computer device using machine learning models to analyze ECG data, transforming it into engineered features like QRS duration, polarity codes, and time-voltage areas, to automatically classify VT or SWCT, providing a probability of each condition for clinical decision-making.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual ECG interpretation methods are used, then diagnostic performance can be maintained by experienced clinicians, but the process is time-consuming and dependent on clinician expertise

Engineering Contradiction:
Improvediagnostic performanceVSAvoidtime-consuming
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical ECG interpretation with an automated computer-based system that uses machine learning algorithms to analyze ECG data, transform it into engineered features, and classify rhythms, thereby eliminating the time-consuming manual analysis process while maintaining diagnostic performance

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables self-service automated diagnosis where the computer autonomously performs ECG analysis without requiring clinician intervention for each specific case, allowing rapid independent diagnosis while experienced clinicians oversee the overall process

Inventive Principle:
Principle #25Self-service

2Measurement precision

If manual WCT differentiation algorithms are applied, then diagnostic accuracy can be achieved under ideal conditions, but error rates increase in high-pressure clinical settings

Engineering Contradiction:
Improvediagnostic accuracyVSAvoiderror rates
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent substitutes manual algorithm application with an automated computer system that consistently applies machine learning models to analyze ECG features, eliminating human error and variability in diagnosis while maintaining high diagnostic accuracy even in high-pressure clinical settings

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system incorporates feedback mechanisms where the computerized analysis provides diagnostic results that can be reviewed and validated, creating a feedback loop that maintains high accuracy while reducing errors through consistent, repeatable analysis

Inventive Principle:
Principle #23Feedback

3Productivity

If automated ECG interpretation systems are implemented, then diagnostic consistency and speed improve, but system complexity increases

Engineering Contradiction:
Improvediagnostic speedVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the complex ECG analysis process into distinct functional modules: data acquisition, feature extraction, machine learning classification, and diagnostic output, making the system more manageable and easier to implement while maintaining high productivity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system introduces an intermediary layer of computerized feature extraction and machine learning models that sits between raw ECG data and final diagnosis, simplifying the overall system architecture by breaking down complex analysis into standardized processing steps

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250228489A1Systems and methods for automated electrocardiogram (ECG) interpretation of wide complex rhythms
Publication Date: 2025.07.17 WASHINGTON UNIV IN SAINT LOUIS
  • US20250228489A1 patent drawing
  • US20250228489A1 patent drawing
  • US20250228489A1 patent drawing

AI summary

A computer device for classifying a wide complex tachycardia (WCT) pattern of a subject is provided. The computer device is programmed to: a) receive WCT electrocardiogram (ECG) data indicative of a WCT pattern; b) transform the WCT ECG data into at least one engineering feature; c) execute at least one machine learning model to analyze the at least one engineering feature and to output a classification of the WCT pattern; d) based upon the classification of the WCT pattern, determine whether the WCT pattern is indicative of at least one of a ventricular tachycardia (VT) and a supraventricular wide complex tachycardia (SWCT); and e) select a treatment for the subject based upon the determination.