The Use of Electrocardiographic Imaging in Localising the Origin of Arrhythmias During Catheter Ablation of Ventricular Tachycardia
| Autor: | Adam J. Graham, Richard J. Schilling |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
Radiofrequency ablation medicine.medical_treatment Electrophysiology and Ablation Catheter ablation Ventricular tachycardia ablation Large target law.invention law Physiology (medical) Internal medicine Medical imaging medicine Diseases of the circulatory (Cardiovascular) system mapping business.industry Ablation medicine.disease RC666-701 Electrocardiographic imaging electrocardiographic imaging cardiovascular system Cardiology Cardiology and Cardiovascular Medicine business Beat (music) |
| Zdroj: | Arrhythmia & Electrophysiology Review, Vol 10, Iss 3, Pp 211-217 (2021) Arrhythmia & Electrophysiology Review |
| ISSN: | 2050-3377 2050-3369 |
| DOI: | 10.15420/aer.2021.27 |
| Popis: | Non-invasive electrocardiographic imaging (ECGI) is a novel clinical tool for mapping ventricular arrhythmia. Using multiple body surface electrodes to collect unipolar electrograms and conventional medical imaging of the heart, an epicardial shell can be created to display calculated electrograms. This calculation is achieved by solving the inverse problem and allows activation times to be calculated from a single beat. The technology was initially pioneered in the US using an experimental torso-shaped tank. Accuracy from studies in humans has varied. Early data was promising, with more recent work suggesting only moderate accuracy when reproducing cardiac activation. Despite these limitations, the system has been successfully used in pioneering work with non-invasive cardiac radioablation to treat ventricular arrhythmia. This suggests that the resolution may be sufficient for treatment of large target areas. Although untested in a well conducted clinical study it is likely that it would not be accurate enough to guide more discreet radiofrequency ablation. |
| Databáze: | OpenAIRE |
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