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Items: 1 to 20 of 91

1.

Reader variability in QT measurement due to measurement error and variability in leads selection: a simulation study comparing 2-way vs. 3-way interaction ANOVA model.

Natekar M, Karnad DR, Salvi V, Ramasamy A, Kerkar V, Panicker GK, Kothari S.

J Electrocardiol. 2014 Mar-Apr;47(2):140-3. doi: 10.1016/j.jelectrocard.2013.09.035. Epub 2013 Oct 25.

PMID:
24209499
2.

Comparison of two methods of estimating reader variability in QT interval measurements in thorough QT/QTc studies.

Salvi V, Karnad DR, Kerkar V, Panicker GK, Natekar M, Kothari S.

Ann Noninvasive Electrocardiol. 2014 Mar;19(2):182-9. doi: 10.1111/anec.12136. Epub 2014 Feb 13.

PMID:
24521536
3.

Intra- and interreader variability in QT interval measurement by tangent and threshold methods in a central electrocardiogram laboratory.

Panicker GK, Karnad DR, Natekar M, Kothari S, Narula D, Lokhandwala Y.

J Electrocardiol. 2009 Jul-Aug;42(4):348-52. doi: 10.1016/j.jelectrocard.2009.01.003. Epub 2009 Mar 3.

PMID:
19261293
4.

Use of ANOVA to estimate inter- and intra-reader variability for a group of readers in thorough QT/QTc studies.

Natekar M, Mahajan V, Satra A, O'Kelly M, Karnad DR.

Clin Pharmacol Ther. 2008 Mar;83(3):489-91. doi: 10.1038/sj.clpt.6100481. Epub 2008 Jan 9. Review.

PMID:
18183035
5.

Z-score for benchmarking reader competence in a central ECG laboratory.

Panicker GK, Karnad DR, Joshi R, Shetty S, Vyas N, Kothari S, Narula D.

Ann Noninvasive Electrocardiol. 2009 Jan;14(1):19-25. doi: 10.1111/j.1542-474X.2008.00269.x.

PMID:
19149789
6.

Comparing methods of measurement for detecting drug-induced changes in the QT interval: implications for thoroughly conducted ECG studies.

Azie NE, Adams G, Darpo B, Francom SF, Polasek EC, Wisser JM, Fleishaker JC.

Ann Noninvasive Electrocardiol. 2004 Apr;9(2):166-74.

PMID:
15084215
7.

Inter- and intraday variability in major electrocardiogram intervals and amplitudes in healthy men and women.

Dota CD, Edvardsson N, Schützer KM, Olofsson EL, Malm A, Morsing T, Fager G.

Pacing Clin Electrophysiol. 2003 Jan;26(1 Pt 2):361-6.

PMID:
12687846
8.

[The automatic, beat-to-beat determination of the QT interval and analysis of its spontaneous variability under basal conditions].

Chorro Gascó FJ, Guerrero Martínez J, Martínez Sober M, Soria Olivas E, Sanchís Forés J, Ibáñez Candela M, Espí López J, López Merino V.

Rev Esp Cardiol. 1995 Nov;48(11):722-31. Spanish.

PMID:
8532941
9.

A Bayesian measurement error approach to QT interval correction and prolongation.

Chen J, Zhao X.

J Biopharm Stat. 2010 May;20(3):523-42. doi: 10.1080/10543400903581960.

PMID:
20358434
10.

Reader- and instrument-dependent variability in the electrocardiographic assessment of arrhythmogenic right ventricular dysplasia/cardiomyopathy.

Jain R, Tandri H, Daly A, Tichnell C, James C, Abraham T, Judge DP, Calkins H, Dalal D.

J Cardiovasc Electrophysiol. 2011 May;22(5):561-8. doi: 10.1111/j.1540-8167.2010.01961.x. Epub 2010 Nov 29.

PMID:
21114702
11.

Difference in QT interval measurement on ambulatory ECG compared with standard ECG.

Christiansen JL, Guccione P, Garson A Jr.

Pacing Clin Electrophysiol. 1996 Sep;19(9):1296-303.

PMID:
8880793
12.

Assessment of QT-measurement accuracy using the 12-lead electrocardiogram derived from EASI leads.

Martínez JP, Laguna P, Olmos S, Pahlm O, Pettersson J, Sörnmo L.

J Electrocardiol. 2007 Apr;40(2):172-9. Epub 2006 Oct 6.

PMID:
17027840
13.

Magnitude, mechanism, and reproducibility of QT interval differences between superimposed global and individual lead ECG complexes.

Kligfield P, Tyl B, Maarek M, Maison-Blanche P.

Ann Noninvasive Electrocardiol. 2007 Apr;12(2):145-52.

PMID:
17593183
14.

Short- and long-term reproducibility of QT, QTc, and QT dispersion measurement in healthy subjects.

Kautzner J, Yi G, Camm AJ, Malik M.

Pacing Clin Electrophysiol. 1994 May;17(5 Pt 1):928-37.

PMID:
8022705
15.

Accuracy of QT measurement in the EASI-derived 12-lead ECG.

Martínez JP, Laguna P, Olmos S, Pahlm O, Petersson J, Sörnmo L.

Conf Proc IEEE Eng Med Biol Soc. 2006;1:3986-9.

PMID:
17946593
18.

Automated measurement of QT interval dispersion from hard-copy ECGs.

Bhullar HK, Fothergill JC, Goddard WP, de Bono DP.

J Electrocardiol. 1993 Oct;26(4):321-31.

PMID:
8228721
19.

QT dispersion and RR variations on 12-lead ECGs in patients with congestive heart failure secondary to idiopathic dilated cardiomyopathy.

Fei L, Goldman JH, Prasad K, Keeling PJ, Reardon K, Camm AJ, McKenna WJ.

Eur Heart J. 1996 Feb;17(2):258-63.

PMID:
8732380
20.

Significant difference in beat-to-beat QT interval variability among different leads.

Yeragani VK, Tancer ME, Glitz D, Uhde T, Desai N.

Heart Dis. 2002 Nov-Dec;4(6):344-8.

PMID:
12441010

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