Paper Info
Title
Accuracy of QT Measurement in the EASI-derived 12-lead ECG
Abstract
Abstract—The purpose of this study is to assess QT interval measurements from the EASI 12-lead ECG as compared to the standard 12-lead ECG. The QT interval was automatically measured in simultaneously recorded standard and EASI 12- lead ECGs, using a validated wavelet-based delineator. The agreement between the two sets of ,measurements was quantified both on a lead-by-lead basis and a multilead basis. The results show an acceptable agreement between QT measurements in the two lead systems, with correlation coefficients (CC) 0.91-0.98 depending on the lead. Standard deviations range from 9.2 ms to ,26.4 ms depending on the selected lead. In a few patients large inter-system differences were found, mainly due to different T wave morphologies. Using a multilead delineation, QT intervals were considerably more stable than single-lead measurements and resulted in a much better agreement between the two lead systems (CC: 0.98, QT difference: 1.1 ms ± 9.8 ms). Thus, EASI-derived 12- lead ECG may be used for reliable QT monitoring when the multilead delineation approach is adopted.
Year
DOI
Venue
2006
10.1109/IEMBS.2006.4398323
international conference of the ieee engineering in medicine and biology society
DocType
Volume
Citations 
Conference
1
0
PageRank 
References 
Authors
0.34
1
6
Name
Order
Citations
PageRank
Juan Pablo Martínez146157.73
Pablo Laguna239463.39
Salvador Olmos312713.87
Olle Pahlm411.04
Jonas Petersson500.34
Leif Sörnmo636958.97