A hybrid wavelet and time plane based method for QT interval measurement in ECG signals
نویسندگان
چکیده
منابع مشابه
A Semi-Automated QT Interval Measurement Based on Wavelet and Energy Analysis
In this paper, a semi-automated multiscale algorithm based on rescaled continuous wavelet transform is presented in order to determine QT interval. According to our previous works, the relation between the duration of ECG waves and their wavelet transforms and dominant scales are used to determine QRS complex vicinity and to denoise ECG signal based on detected vicinity of QRS complex. Then, a ...
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An example of application of the wavelet transform to electrocardiography is described in the paper. The transform is exploited as a first stage of an ECG signal compression algorithm. The signal is decomposed into particular timefrequency components. Some of the components are removed because of their low influence to signal shape due to nonstationary character of ECG. Resulted components are ...
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BACKGROUND Assessment of repolarization duration is often recommended to avoid administration of QT-prolonging drugs in patients with prolonged QTc interval, a frequent situation in the postoperative period. Bazett QT correction inappropriately increases QTc when heart rate is increased, and the use of the Fridericia formula may avoid a falsely prolonged QTc interval. The authors assessed autom...
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The QT interval, apart from clinical implications is crucial for safety assessment of new drugs under development. A QTc prolongation of even 10 msec in a study group is a warning signal for a new drug. There are various issues involved in the measurement of the QT interval especially regarding the ending of the T wave and different morphological pattern of T-U complex. The other issue is signi...
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ژورنال
عنوان ژورنال: Journal of Biomedical Science and Engineering
سال: 2009
ISSN: 1937-6871,1937-688X
DOI: 10.4236/jbise.2009.24042