System for cardiac arrhythmia detection and characterization

摘要

A system for heart performance characterization and abnormality detection comprises an input processor and at least one signal processor. The input processor receives, sampled data representing a patient blood pressure signal and a concurrently acquired electrocardiogram (ECG) signal representing heart electrical activity of the patient. The at least one signal processor, synchronizes the patient blood pressure signal and the heart electrical activity signal, identifies at least two points of a heart electrical activity signal cycle, integrates signal data values representing the amplitude of the patient blood pressure signal of a segment between the identified two points to derive an integral value over time duration of the segment representing an area under the blood pressure signal waveform between the identified two points and in response to the derived integral value, initiates generation of a message associated with a medical condition of the patient.

主权项

1. A system for heart performance characterization and cardiac arrhythmia detection, comprising:
an input processor configured to receive:
sampled data representing a patient blood pressure signal associated with a patient, anda concurrently acquired electrocardiogram (ECG) signal representing heart electrical activity of said patient; and at least one signal processor configured to:
synchronize said patient blood pressure signal and the ECG signal,identify a first set of points of the ECG signal based on one or more morphological characteristics of the ECG signal,define a first segment of the patient blood pressure signal based on the first set of points,derive a first integral value representing an area under a first signal amplitude waveform associated with the first segment,identify a second set of points of the ECG signal based on the one or more morphological characteristics of the ECG signal,define a second segment of the patient blood pressure signal based on the second set of points,derive a second integral value representing an area under a second signal amplitude waveform associated with the second segment,calculating a ratio of the first integral value and the second integral value;identify a potential cardiac arrhythmia based on said ratio of the first integral value and the second integral value, andgenerate an alert message indicating the potential cardiac arrhythmia.