Electrocardiogram system for synthesizing leads and providing an accuracy measure
First Claim
1. An electrocardiogram (ECG) system, comprising:
- a source of an ECG lead signal;
a synthesizer, coupled to the ECG lead signal source, for generating a synthesized ECG lead signal corresponding to the ECG lead signal;
a controller for generating an indication of an anomalous signal if the ECG lead signal is not substantially the same as the synthesized ECG lead signal source.
3 Assignments
0 Petitions
Accused Products
Abstract
An electrocardiogram (ECG) system includes a database for containing a number of entries. Each entry contains data for synthesizing a 12 lead ECG from received ECG lead signals, and an accuracy measure of the synthesized 12 lead ECG signals. The received ECG lead signals may be missing one or more leads due to detachment of the corresponding electrode, or because the location on the patient is unavailable. The synthesized 12 lead ECG synthesizes the missing leads. Alternatively, the received 12 lead ECG may be derived from a patient in a different body position than a reference position. The synthesized 12 lead ECG translates the ECG to one for the patient in the reference body position. In addition, a synthesized lead signal may be compared to a received lead signal to detect anomalous signals.
-
Citations
33 Claims
-
1. An electrocardiogram (ECG) system, comprising:
-
a source of an ECG lead signal;
a synthesizer, coupled to the ECG lead signal source, for generating a synthesized ECG lead signal corresponding to the ECG lead signal;
a controller for generating an indication of an anomalous signal if the ECG lead signal is not substantially the same as the synthesized ECG lead signal source. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An electrocardiogram (ECG) system, comprising:
-
a source of ECG lead signals;
a database, comprising a plurality of entries, each entry containing data for translating a 12 lead ECG for a patient in a corresponding body position to a synthesized 12 lead ECG for the patient a reference body position;
a body position detector, for detecting the body position of the patient;
a controller, coupled to the body position detector and the database, and comprising circuitry for;
receiving information from the body position detector relating to body position of the patient; and
selecting the entry from the database most closely corresponding to the detected body position of the patient; and
a synthesizer, coupled to the ECG lead signal source, and the controller, for receiving the translating data in the selected entry, synthesizing a 12 lead ECG for the reference body position from the 12 lead ECG signals from the ECG lead signal source, and supplying data representing the synthesized 12 lead ECG to a user. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21)
-
-
15. An electrocardiogram (ECG) system, comprising:
-
a source of ECG lead signals, comprising electrodes intended to be attached to a patient;
a user interface, for supplying information to and receiving information from a user;
a database, comprising a plurality of entries, each entry containing data for synthesizing a 12 lead ECG from a subset of leads derived from a number of electrodes attached to the patient in a corresponding configuration and an accuracy measure for the synthesized 12 lead ECG;
a controller, coupled to the user interface and the database, and comprising circuitry for;
receiving information from the user interface relating to a number of available electrodes;
retrieving entries from the database for configurations in which the number of electrodes is the same as the number of available electrodes; and
selecting the entry having the highest accuracy measure, and supplying information to the user indicating the selected configuration for the available electrodes; and
a synthesizer, coupled to the ECG lead signal source, the controller, and the user interface, for receiving the synthesizing data in the selected entry, synthesizing a 12 lead ECG from the electrodes attached to the patient in the selected configuration, and supplying data representing the synthesized 12 lead ECG and the accuracy measure to the user interface.
-
-
22. An electrocardiogram (ECG) system, comprising:
-
a source of ECG lead signals, comprising electrodes intended to be attached to a patient;
a user interface, for supplying information to and receiving information from a user;
a database, comprising a plurality of entries, each entry containing data for synthesizing a 12 lead ECG from a subset of leads derived from a number of electrodes attached to the patient in a corresponding configuration and an accuracy measure for the synthesized 12 lead ECG;
a controller, coupled to the user interface and the database, and comprising circuitry for;
receiving information from the user interface relating to a number of available electrodes;
retrieving entries from the database for configurations in which the number of electrodes is the same as the number of available electrodes;
supplying data representing the retrieved entries, including the respective accuracy measures, to the user interface; and
receiving data from the user interface representing a selected one of the retrieved entries; and
a synthesizer, coupled to the ECG lead signal source, the controller, and the user interface, for receiving the synthesizing data in the selected entry, synthesizing a 12 lead ECG from the electrodes attached to the patient in the selected configuration, and supplying data representing the synthesized 12 lead ECG and the accuracy measure to the user interface. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
-
-
30. A method for operating an electrocardiogram (ECG) system, comprising the steps of:
-
detecting the body position of a patient;
retrieving from a database, an entry containing translation data for synthesizing a 12 lead ECG for a reference body position from a 12 lead ECG at a body position closest to the detected body position;
receiving a 12 lead ECG from the patient;
synthesizing a 12 lead ECG for the reference body position from the received 12 lead ECG.
-
-
31. A method for operating an electrocardiogram (ECG) system, comprising the steps of:
-
requesting information from a user representing a number of available electrodes;
retrieving from a database respective entries, each entry containing data for synthesizing a 12 lead ECG from the number available electrodes and an accuracy measure;
selecting the entry having the highest accuracy measure;
synthesizing a 12 lead ECG from the available electrodes in response to the synthesizing data in the selected entry; and
displaying the synthesized 12 lead ECG and the accuracy measure. - View Dependent Claims (32)
-
-
33. A method for operating an electrocardiogram (ECG) system, comprising the steps of:
-
requesting information from a user representing a number of available electrodes;
retrieving from a database respective entries, each entry containing data for synthesizing a 12 lead ECG from the number available electrodes and an accuracy measure;
displaying for a user information representing the retrieved entries, including the accuracy measure;
selecting by the user one of the displayed entries;
synthesizing a 12 lead ECG from the available electrodes in response to the synthesizing data in the selected entry; and
displaying the synthesized 12 lead ECG and the accuracy measure.
-
Specification