Computer modeling of depolarization changes induced by myocardial ischemia
| Autor: | Boris I. Gramatikov, Mahesh Shenai, Nitish V. Thakor |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Myocardial ischemia
Materials science medicine.diagnostic_test Wavelet transform Depolarization behavioral disciplines and activities Time–frequency analysis Nuclear magnetic resonance Frequency domain Ischemic depolarization mental disorders medicine Electrocardiography Continuous wavelet transform |
| Zdroj: | Computers in Cardiology 1998. Vol. 25 (Cat. No.98CH36292). |
| DOI: | 10.1109/cic.1998.731798 |
| Popis: | All modes of the grid were simulated. A 2D depolarization map allowed gross visualization of normal and ischemic propagation. For some significant nodes, unipolar lead signals were obtained, to simulate unipolar recordings. Maps of ischemic depolarization showed significant difference for non-ischemic map. Time-frequency decomposition using the continuous wavelet transform was performed on the unipolar signals to determine the frequency components of the superimposed irregularity. Myocardial ischemia was shown to cause frequency domain changes during depolarization. |
| Databáze: | OpenAIRE |
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