Accuracy of QT Measurement in the EASI-derived 12-lead ECG
(2006) 1. p.3986-3989- 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... (More) - 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1136542
- author
- Martinez, J P ; Laguna, P ; Olmos, S ; Pahlm, Olle LU ; Petersson, J and Sörnmo, Leif LU
- organization
- publishing date
- 2006
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Conference proceedings (IEEE Engineering in Medicine and Biology Society. Conf.)
- volume
- 1
- pages
- 4 pages
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- pmid:17946593
- scopus:34047133353
- ISSN
- 1557-170X
- DOI
- 10.1109/IEMBS.2006.259718
- language
- English
- LU publication?
- yes
- id
- 35404dcc-b5dc-40ff-8adc-b921bcb3636e (old id 1136542)
- date added to LUP
- 2016-04-01 15:55:34
- date last changed
- 2022-01-28 08:06:01
@inproceedings{35404dcc-b5dc-40ff-8adc-b921bcb3636e,
abstract = {{The purpose of this study is to assess QT interval<br/><br>
measurements from the EASI 12-lead ECG as compared to the<br/><br>
standard 12-lead ECG. The QT interval was automatically<br/><br>
measured in simultaneously recorded standard and EASI 12-<br/><br>
lead ECGs, using a validated wavelet-based delineator. The<br/><br>
agreement between the two sets of measurements was<br/><br>
quantified both on a lead-by-lead basis and a multilead basis.<br/><br>
The results show an acceptable agreement between QT<br/><br>
measurements in the two lead systems, with correlation<br/><br>
coefficients (CC) 0.91-0.98 depending on the lead. Standard<br/><br>
deviations range from 9.2 ms to 26.4 ms depending on the<br/><br>
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.}},
author = {{Martinez, J P and Laguna, P and Olmos, S and Pahlm, Olle and Petersson, J and Sörnmo, Leif}},
booktitle = {{Conference proceedings (IEEE Engineering in Medicine and Biology Society. Conf.)}},
issn = {{1557-170X}},
language = {{eng}},
pages = {{3986--3989}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
title = {{Accuracy of QT Measurement in the EASI-derived 12-lead ECG}},
url = {{http://dx.doi.org/10.1109/IEMBS.2006.259718}},
doi = {{10.1109/IEMBS.2006.259718}},
volume = {{1}},
year = {{2006}},
}