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US 12,588,855 B2Granted
Determination method and determination apparatus for beginning of T-wave, storage medium and computer program product
AssigneeBoe Technology Group Co., Ltd.
InventorsXue Chen, Jinnv Liu, Yude Li, Zheng Wu, Li Zhou
Life of this patent
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Abstract
A determination method for a beginning of T-wave includes: obtaining an electrocardiogram (ECG) signal; identifying a form of each T-wave in the ECG signal; and recalling a preset algorithm corresponding to the form of the T-wave according to the form of the T-wave to determine a beginning of the T-wave.
Claims17
A determination method for a beginning of T-wave applied to an electrocardiogram (ECG), comprising:
- obtaining an ECG signal;
- identifying a form of each T-wave in the ECG signal;
- and
- recalling a preset algorithm corresponding to a form of an identified T-wave according to the form of the identified T-wave to determine a beginning of the identified T-wave automatically;
- wherein the ECG is analyzed according to the beginning of the identified T-wave;
- wherein identifying the form of each T-wave in the ECG signal, includes:
- dividing the ECG signal into a plurality of heartbeat segments, each heartbeat segment including a T-wave;
- performing a wavelet transform on each heartbeat segment;
- determining a number of valid extreme value points in each transformed heartbeat segment;
- determining that a form of the T-wave in the heartbeat segment is a unidirectional T-wave in a case where the number of valid extreme value points is less than or equal to 2;
- and
- determining that the form of the T-wave in the heartbeat segment is a bidirectional T-wave in a case where the number of valid extreme value points is greater than 2.
9 more elements
A determination apparatus for a beginning of T-wave applied to an electrocardiogram (ECG), comprising:
- a receiving circuit configured to obtain an ECG signal;
- an identification circuit coupled to the receiving circuit, the identification circuit being configured to identify a form of each T-wave in the ECG signal;
- and
- a determination circuit coupled to the identification circuit, the determination circuit being configured to, according to a form of an identified T-wave, recall a preset algorithm corresponding to the form of the identified T-wave to determine a beginning of the identified T-wave automatically;
- wherein the ECG is analyzed according to the beginning of the identified T-wave;
- the identification circuit is configured to:
- divide the ECG signal into a plurality of heartbeat segments, each heartbeat segment including a T-wave;
- perform a wavelet transform on each heartbeat segment;
- determine a number of valid extreme value points in each transformed heartbeat segment;
- determine that a form of the T-wave in the heartbeat segment is a unidirectional T-wave in a case where the number of valid extreme value points is less than or equal to 2;
- and
- determine that the form of the T-wave in the heartbeat segment is a bidirectional T-wave in a case where the number of valid extreme value points is greater than 2.
9 more elements
Dependencies are inferred from the claim text.