INTERNET-BASED SYSTEM FOR EVALUATING T WAVES WITHIN ECG WAVEFORMS TO DETERMINE THE PRESENCE OF CARDIAC ABNORMALITIES
First Claim
1. A system for determining the presence of a patient'"'"'s cardiac abnormalities by evaluating T waves from their ECG waveform, comprising:
- a database comprising a set of data fields collected from a plurality of patients, with each data field in the set corresponding to an individual patient and including a T wave extracted from an ECG waveform and a parameter indicating the presence of a cardiac abnormality in the patient;
an ECG-analysis algorithm configured to process the ECG waveform in each data field to extract a set of parameters corresponding to the T wave, and correlate the set of parameters to the parameter indicating the presence of a cardiac abnormality in the patient;
an averaging algorithm configured to processes multiple data fields, with each data field corresponding to an individual patient, the averaging algorithm further configured to determine an average correlation factor mapping the set parameters corresponding to the T wave to the parameter indicating the presence of a cardiac abnormality in the patient;
an ECG-measuring system configured to measure an ECG waveform from a given patient and then transmit a numerical representation of the ECG waveform to the database; and
a correlation algorithm configured to evaluate the presence of a cardiac abnormality in the given patient by extracting a new set of parameters from the T wave in the ECG waveform measured by the ECG-measuring system, and then comparing the new set of parameters to the average correlation factor to estimate a new parameter indicating the presence of a cardiac abnormality in the patient.
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Abstract
The present invention provides an improved, Internet-based system that seamlessly collects cardiovascular data from a patient before, during, and after a procedure for EP or an ID. During an EP procedure, the system collects information describing the patient'"'"'s response to PES and the ablation process, ECG waveforms and their various features, HR and other vital signs, HR variability, cardiac arrhythmias, patient demographics, and patient outcomes. Once these data are collected, the system stores them on an Internet-accessible computer system that can deploy a collection of user-selected and custom-developed algorithms. Before and after the procedure, the system also integrates with body-worn and/or programmers that interrogate implanted devices to collect similar data while the patient is either ambulatory, or in a clinic associated with the hospital. A data-collection/storage module, featuring database interface, stores physiological and procedural information measured from the patient.
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Citations
15 Claims
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1. A system for determining the presence of a patient'"'"'s cardiac abnormalities by evaluating T waves from their ECG waveform, comprising:
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a database comprising a set of data fields collected from a plurality of patients, with each data field in the set corresponding to an individual patient and including a T wave extracted from an ECG waveform and a parameter indicating the presence of a cardiac abnormality in the patient; an ECG-analysis algorithm configured to process the ECG waveform in each data field to extract a set of parameters corresponding to the T wave, and correlate the set of parameters to the parameter indicating the presence of a cardiac abnormality in the patient; an averaging algorithm configured to processes multiple data fields, with each data field corresponding to an individual patient, the averaging algorithm further configured to determine an average correlation factor mapping the set parameters corresponding to the T wave to the parameter indicating the presence of a cardiac abnormality in the patient; an ECG-measuring system configured to measure an ECG waveform from a given patient and then transmit a numerical representation of the ECG waveform to the database; and a correlation algorithm configured to evaluate the presence of a cardiac abnormality in the given patient by extracting a new set of parameters from the T wave in the ECG waveform measured by the ECG-measuring system, and then comparing the new set of parameters to the average correlation factor to estimate a new parameter indicating the presence of a cardiac abnormality in the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for evaluating a presence of at least one of myocardial ischemia, myocardial infarction, pericarditis, ventricular enlargement, bundle branch block, and subarachnoid hemorrhage, comprising:
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a database comprising a set of data fields collected from a plurality of patients, with each data field in the set corresponding to an individual patient and including a T wave extracted from an ECG waveform and a parameter indicating at least one of myocardial ischemia, myocardial infarction, pericarditis, ventricular enlargement, bundle branch block, and subarachnoid hemorrhage; an ECG-analysis algorithm configured to process the ECG waveform in each data field to extract a set of parameters corresponding to the T wave, and correlate the set of parameters to the parameter indicating at least one of myocardial ischemia, myocardial infarction, pericarditis, ventricular enlargement, bundle branch block, and subarachnoid hemorrhage; an averaging algorithm configured to processes multiple data fields, with each data field corresponding to an individual patient, the averaging algorithm further configured to determine an average correlation factor mapping the set parameters corresponding to the T wave to the parameter indicating at least one of myocardial ischemia, myocardial infarction, pericarditis, ventricular enlargement, bundle branch block, and subarachnoid hemorrhage; an ECG-measuring system configured to measure an ECG waveform from a given patient and then transmit a numerical representation of the ECG waveform to the database; and a correlation algorithm configured to evaluate the presence of at least one of myocardial ischemia, myocardial infarction, pericarditis, ventricular enlargement, bundle branch block, and subarachnoid hemorrhage in the given patient by extracting a new set of parameters from the T wave in the ECG waveform measured by the ECG-measuring system, and then comparing the new set of parameters to the average correlation factor to estimate a new parameter indicating the presence of at least one of myocardial ischemia, myocardial infarction, pericarditis, ventricular enlargement, bundle branch block, and subarachnoid hemorrhage.
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Specification