12-Lead ECG Machine Learning for Cardiac Amyloidosis Detection

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Solution Overview

Problem

Conventional electrocardiogram (ECG) findings for cardiac amyloidosis are neither sensitive nor specific, and inconsistent, making it difficult to diagnose this condition accurately.

Innovation Solution

A machine learning model is trained on meticulously selected ECG parameters such as P wave duration, amplitude, R wave duration, amplitude, S wave amplitude, T wave duration, T wave amplitude, PR Interval, and QT value to identify cardiac amyloidosis with high sensitivity and specificity, using a database of annotated ECG signals from approximately 1 million patients.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional ECG patterns are used for detection, then the method is simple, but sensitivity and specificity are insufficient

Engineering Contradiction:
Improvedetection accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent transforms conventional ECG analysis by changing from qualitative pattern recognition to quantitative parameter measurement. It extracts specific numerical parameters (P wave duration, P wave amplitude, R wave duration, R wave amplitude, S wave amplitude, T wave duration, T wave amplitude, PR interval, QT interval) from ECG signals and feeds them into machine learning models, enabling precise detection through mathematical computation rather than subjective pattern matching

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the traditional mechanical/electronic ECG analysis system with a computational machine learning system. Instead of relying on conventional signal processing algorithms or visual interpretation, the system uses trained neural networks and classification models that process numerical parameters to automatically detect cardiac amyloidosis with high accuracy

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

2Reliability

If machine learning model with multiple ECG parameters is used, then sensitivity and specificity increase, but computational complexity increases

Engineering Contradiction:
Improvedetection reliabilityVSAvoidcomputational complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the ECG signal analysis into distinct parameter extraction components, separating the measurement of individual ECG features (P wave, QRS complex, T wave parameters) from the classification decision. This modular approach allows the system to process complex data systematically by breaking it down into manageable numerical features that can be independently extracted and then combined by the machine learning model

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary extraction and preprocessing of ECG parameters before they are input to the machine learning model. The system pre-processes the raw ECG signals to accurately measure durations, amplitudes, and intervals, preparing cleaned numerical data that the classification model can process efficiently, thereby reducing the computational burden during the actual detection phase

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12620488B2Machine learning algorithm for the detection of cardiac amyloidosis from 12 lead ECG data
Publication Date: 2026.05.05 ACCURKARDIA INC
  • US12620488B2 patent drawing
  • US12620488B2 patent drawing
  • US12620488B2 patent drawing

AI summary

The present disclosure provides systems and methods for detection of cardiac amyloidosis from electrocardiogram (ECG) signals. In particular, the present disclosure identified critical novel features that can be incorporated in systems and methods for the detection of cardiac amyloidosis from one or more ECG signals.