Doppler tissue imaging in the assessment of atrioventricular conduction time: Validation of a novel technique and comparison with electrophysiologic and pulsed wave doppler-derived equivalents in an animal model

M. Nii; M. Shimizu; K.S. Roman; Igor Konstantinov; J. Li; A.N. Redington; E.T. Jaeggi

doi:10.1016/j.echo.2005.09.010

Doppler tissue imaging in the assessment of atrioventricular conduction time: Validation of a novel technique and comparison with electrophysiologic and pulsed wave doppler-derived equivalents in an animal model

M. Nii, M. Shimizu, K.S. Roman, Igor Konstantinov, J. Li, A.N. Redington, E.T. Jaeggi

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Accurate assessment of atrioventricular conduction time (AVCT) is crucial for early detection of evolving fetal heart block. Simultaneous pulsed wave Doppler (PD) interrogation of left ventricular inflow and outflow is mainly used to study fetal AVCT. Limitations; of this modality include its dependency on loading conditions and merging early and late diastolic inflow waves at faster heart rate (HR). Sequential analysis of atrioventricular myocardial motion by Doppler tissue imaging (DTI) might be more useful in this regard. In 15 open-chest pigs, AVCT was measured by PD, DTI, and electrocardiogram at baseline HR and during incremental atrial pacing up to 200 beats/min. Electromechanical delay and pre-ejection period were assessed at baseline and maximal HR. DTI-derived AVCT correlated better with PR intervals and allowed measurements at faster HRs than did PD (P <.05). Pre-ejection period prolonged with faster HR (P <.001), unlike electromechanical delay. In conclusion, DTI allows more accurate measurement of AVCT over a wider HR range than does PD.

Original language	English
Pages (from-to)	314-321
Journal	Journal of the American Society of Echocardiography
Volume	19
Issue number	3
DOIs	https://doi.org/10.1016/j.echo.2005.09.010
Publication status	Published - 2006

Access to Document

10.1016/j.echo.2005.09.010

Fingerprint

Dive into the research topics of 'Doppler tissue imaging in the assessment of atrioventricular conduction time: Validation of a novel technique and comparison with electrophysiologic and pulsed wave doppler-derived equivalents in an animal model'. Together they form a unique fingerprint.

Cite this

Nii, M., Shimizu, M., Roman, K. S., Konstantinov, I., Li, J., Redington, A. N., & Jaeggi, E. T. (2006). Doppler tissue imaging in the assessment of atrioventricular conduction time: Validation of a novel technique and comparison with electrophysiologic and pulsed wave doppler-derived equivalents in an animal model. Journal of the American Society of Echocardiography, 19(3), 314-321. https://doi.org/10.1016/j.echo.2005.09.010

@article{bcf9c8538d76430b9d9aabedd6643ed6,

title = "Doppler tissue imaging in the assessment of atrioventricular conduction time: Validation of a novel technique and comparison with electrophysiologic and pulsed wave doppler-derived equivalents in an animal model",

abstract = "Accurate assessment of atrioventricular conduction time (AVCT) is crucial for early detection of evolving fetal heart block. Simultaneous pulsed wave Doppler (PD) interrogation of left ventricular inflow and outflow is mainly used to study fetal AVCT. Limitations; of this modality include its dependency on loading conditions and merging early and late diastolic inflow waves at faster heart rate (HR). Sequential analysis of atrioventricular myocardial motion by Doppler tissue imaging (DTI) might be more useful in this regard. In 15 open-chest pigs, AVCT was measured by PD, DTI, and electrocardiogram at baseline HR and during incremental atrial pacing up to 200 beats/min. Electromechanical delay and pre-ejection period were assessed at baseline and maximal HR. DTI-derived AVCT correlated better with PR intervals and allowed measurements at faster HRs than did PD (P <.05). Pre-ejection period prolonged with faster HR (P <.001), unlike electromechanical delay. In conclusion, DTI allows more accurate measurement of AVCT over a wider HR range than does PD.",

author = "M. Nii and M. Shimizu and K.S. Roman and Igor Konstantinov and J. Li and A.N. Redington and E.T. Jaeggi",

year = "2006",

doi = "10.1016/j.echo.2005.09.010",

language = "English",

volume = "19",

pages = "314--321",

journal = "Journal of the American Society of Echocardiography",

issn = "0894-7317",

publisher = "Mosby International",

number = "3",

}

Nii, M, Shimizu, M, Roman, KS, Konstantinov, I, Li, J, Redington, AN & Jaeggi, ET 2006, 'Doppler tissue imaging in the assessment of atrioventricular conduction time: Validation of a novel technique and comparison with electrophysiologic and pulsed wave doppler-derived equivalents in an animal model', Journal of the American Society of Echocardiography, vol. 19, no. 3, pp. 314-321. https://doi.org/10.1016/j.echo.2005.09.010

Doppler tissue imaging in the assessment of atrioventricular conduction time: Validation of a novel technique and comparison with electrophysiologic and pulsed wave doppler-derived equivalents in an animal model. / Nii, M.; Shimizu, M.; Roman, K.S. et al.
In: Journal of the American Society of Echocardiography, Vol. 19, No. 3, 2006, p. 314-321.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Doppler tissue imaging in the assessment of atrioventricular conduction time: Validation of a novel technique and comparison with electrophysiologic and pulsed wave doppler-derived equivalents in an animal model

AU - Nii, M.

AU - Shimizu, M.

AU - Roman, K.S.

AU - Konstantinov, Igor

AU - Li, J.

AU - Redington, A.N.

AU - Jaeggi, E.T.

PY - 2006

Y1 - 2006

N2 - Accurate assessment of atrioventricular conduction time (AVCT) is crucial for early detection of evolving fetal heart block. Simultaneous pulsed wave Doppler (PD) interrogation of left ventricular inflow and outflow is mainly used to study fetal AVCT. Limitations; of this modality include its dependency on loading conditions and merging early and late diastolic inflow waves at faster heart rate (HR). Sequential analysis of atrioventricular myocardial motion by Doppler tissue imaging (DTI) might be more useful in this regard. In 15 open-chest pigs, AVCT was measured by PD, DTI, and electrocardiogram at baseline HR and during incremental atrial pacing up to 200 beats/min. Electromechanical delay and pre-ejection period were assessed at baseline and maximal HR. DTI-derived AVCT correlated better with PR intervals and allowed measurements at faster HRs than did PD (P <.05). Pre-ejection period prolonged with faster HR (P <.001), unlike electromechanical delay. In conclusion, DTI allows more accurate measurement of AVCT over a wider HR range than does PD.

AB - Accurate assessment of atrioventricular conduction time (AVCT) is crucial for early detection of evolving fetal heart block. Simultaneous pulsed wave Doppler (PD) interrogation of left ventricular inflow and outflow is mainly used to study fetal AVCT. Limitations; of this modality include its dependency on loading conditions and merging early and late diastolic inflow waves at faster heart rate (HR). Sequential analysis of atrioventricular myocardial motion by Doppler tissue imaging (DTI) might be more useful in this regard. In 15 open-chest pigs, AVCT was measured by PD, DTI, and electrocardiogram at baseline HR and during incremental atrial pacing up to 200 beats/min. Electromechanical delay and pre-ejection period were assessed at baseline and maximal HR. DTI-derived AVCT correlated better with PR intervals and allowed measurements at faster HRs than did PD (P <.05). Pre-ejection period prolonged with faster HR (P <.001), unlike electromechanical delay. In conclusion, DTI allows more accurate measurement of AVCT over a wider HR range than does PD.

U2 - 10.1016/j.echo.2005.09.010

DO - 10.1016/j.echo.2005.09.010

M3 - Article

SN - 0894-7317

VL - 19

SP - 314

EP - 321

JO - Journal of the American Society of Echocardiography

JF - Journal of the American Society of Echocardiography

IS - 3

ER -

Nii M, Shimizu M, Roman KS, Konstantinov I, Li J, Redington AN et al. Doppler tissue imaging in the assessment of atrioventricular conduction time: Validation of a novel technique and comparison with electrophysiologic and pulsed wave doppler-derived equivalents in an animal model. Journal of the American Society of Echocardiography. 2006;19(3):314-321. doi: 10.1016/j.echo.2005.09.010