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Article: Novel area strain based on three-dimensional wall motion analysis for assessment of global left ventricular performance after repair of tetralogy of Fallot

TitleNovel area strain based on three-dimensional wall motion analysis for assessment of global left ventricular performance after repair of tetralogy of Fallot
Authors
Issue Date2011
PublisherMosby, Inc. The Journal's web site is located at http://www.elsevier.com/locate/echo
Citation
Journal Of The American Society Of Echocardiography, 2011, v. 24 n. 8, p. 819-825 How to Cite?
AbstractObjective: This study aimed to determine the usefulness of novel parameters of left ventricular (LV) endocardial area strain (AS) in assessing global LV performance in patients with repaired tetralogy of Fallot (TOF). Methods: Thirty patients, aged 21.7 ± 5.8 years, with repaired TOF and 25 healthy subjects aged 19.9 ± 5.5 years were studied. Three-dimensional LV wall motion tracking was performed to determine global and regional peak AS, an AS-systolic dyssynchrony index (SDI), and LV volumes and ejection fraction. The AS-SDI was derived from the dispersion of time-to-minimum segmental endocardial areas, expressed as a percentage of RR interval, using a 16-segment model. The LV global performance plot was generated by plotting peak global AS against AS-SDI. Results: The coefficients of variations for intra- and interobserver measurement of LV global AS were 6.3% and 10.6%, respectively. Compared with controls, patients had significantly lower global AS (30.5% ± 4.5% vs. 40.9% ± 2.8%, P <.001) and greater AS-SDI (10.0% ± 2.9% vs. 4.1% ± 1.4%, P <.001). Global AS (r = 0.94, P <.001) and AS-SDI (r = -0.76, P <.001) correlated strongly with LV ejection fraction. The global performance plot identified 87% of patients (26/30) with both reduced LV global AS and LV systolic mechanical dyssynchrony. Conclusion: AS measurement of LV endocardium based on three-dimensional wall motion tracking is reproducible and enables convenient assessment of global LV performance using a composite representation of parameters, including global AS and an AS-derived index of mechanical dyssynchrony. © 2011 by the American Society of Echocardiography.
Persistent Identifierhttp://hdl.handle.net/10722/170454
ISSN
2015 Impact Factor: 4.254
2015 SCImago Journal Rankings: 2.808
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, SNen_US
dc.contributor.authorWong, SJen_US
dc.contributor.authorCheung, YFen_US
dc.date.accessioned2012-10-30T06:09:04Z-
dc.date.available2012-10-30T06:09:04Z-
dc.date.issued2011en_US
dc.identifier.citationJournal Of The American Society Of Echocardiography, 2011, v. 24 n. 8, p. 819-825en_US
dc.identifier.issn0894-7317en_US
dc.identifier.urihttp://hdl.handle.net/10722/170454-
dc.description.abstractObjective: This study aimed to determine the usefulness of novel parameters of left ventricular (LV) endocardial area strain (AS) in assessing global LV performance in patients with repaired tetralogy of Fallot (TOF). Methods: Thirty patients, aged 21.7 ± 5.8 years, with repaired TOF and 25 healthy subjects aged 19.9 ± 5.5 years were studied. Three-dimensional LV wall motion tracking was performed to determine global and regional peak AS, an AS-systolic dyssynchrony index (SDI), and LV volumes and ejection fraction. The AS-SDI was derived from the dispersion of time-to-minimum segmental endocardial areas, expressed as a percentage of RR interval, using a 16-segment model. The LV global performance plot was generated by plotting peak global AS against AS-SDI. Results: The coefficients of variations for intra- and interobserver measurement of LV global AS were 6.3% and 10.6%, respectively. Compared with controls, patients had significantly lower global AS (30.5% ± 4.5% vs. 40.9% ± 2.8%, P <.001) and greater AS-SDI (10.0% ± 2.9% vs. 4.1% ± 1.4%, P <.001). Global AS (r = 0.94, P <.001) and AS-SDI (r = -0.76, P <.001) correlated strongly with LV ejection fraction. The global performance plot identified 87% of patients (26/30) with both reduced LV global AS and LV systolic mechanical dyssynchrony. Conclusion: AS measurement of LV endocardium based on three-dimensional wall motion tracking is reproducible and enables convenient assessment of global LV performance using a composite representation of parameters, including global AS and an AS-derived index of mechanical dyssynchrony. © 2011 by the American Society of Echocardiography.en_US
dc.languageengen_US
dc.publisherMosby, Inc. The Journal's web site is located at http://www.elsevier.com/locate/echoen_US
dc.relation.ispartofJournal of the American Society of Echocardiographyen_US
dc.subject.meshAdolescenten_US
dc.subject.meshAdulten_US
dc.subject.meshAlgorithmsen_US
dc.subject.meshCardiac Surgical Proceduresen_US
dc.subject.meshCase-Control Studiesen_US
dc.subject.meshEchocardiography, Three-Dimensionalen_US
dc.subject.meshFemaleen_US
dc.subject.meshHeart Ventricles - Physiopathology - Ultrasonographyen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMyocardial Contractionen_US
dc.subject.meshRisk Assessmenten_US
dc.subject.meshStroke Volumeen_US
dc.subject.meshSystoleen_US
dc.subject.meshTetralogy Of Fallot - Physiopathology - Surgery - Ultrasonographyen_US
dc.subject.meshTreatment Outcomeen_US
dc.titleNovel area strain based on three-dimensional wall motion analysis for assessment of global left ventricular performance after repair of tetralogy of Falloten_US
dc.typeArticleen_US
dc.identifier.emailCheung, YF:xfcheung@hku.hken_US
dc.identifier.authorityCheung, YF=rp00382en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.echo.2011.03.020en_US
dc.identifier.pmid21570252-
dc.identifier.scopuseid_2-s2.0-79960838955en_US
dc.identifier.hkuros194351-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79960838955&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume24en_US
dc.identifier.issue8en_US
dc.identifier.spage819en_US
dc.identifier.epage825en_US
dc.identifier.isiWOS:000293070900002-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLi, SN=47161384100en_US
dc.identifier.scopusauthoridWong, SJ=25924109100en_US
dc.identifier.scopusauthoridCheung, YF=7202111067en_US

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