Several insights into the preprocessing of electrograms in atrial fibrillation for dominant frequency analysis
详细信息 查看全文
- 作者：Wenhai Li ; Cuiwei Yang ; Yanlei Wang ; Dexi Wang ; Ying Chen…
- 关键词：Atrial fibrillation ; Dominant frequency ; Preprocessing ; Down ; sampling ; Electrograms
- 刊名：BioMedical Engineering OnLine
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：15
- 期：1
- 全文大小：3,745 KB
- 刊物类别：Engineering
- 出版者：BioMed Central
- ISSN：1475-925X
文摘
Background Dominant frequency (DF) analysis of atrial electrograms has become an important method in characterizing atrial fibrillation (AF). As a classic method, Botteron’s approach is widely used in the preprocessing of frequency analysis during AF. It includes three steps: (1) band-pass filtering at 40–250 Hz, (2) absolute value, and (3) low-pass filtering at 20 Hz. This paper aims to expound the necessity and adjustability of each step.