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Article: New two-dimensional global longitudinal strain and strain rate imaging for assessment of systemic right ventricular function

TitleNew two-dimensional global longitudinal strain and strain rate imaging for assessment of systemic right ventricular function
Authors
Issue Date2008
PublisherB M J Publishing Group. The Journal's web site is located at http://heart.bmjjournals.com/
Citation
Heart, 2008, v. 94 n. 7, p. 855-859 How to Cite?
AbstractObjectives: To determine the usefulness of new two-dimensional strain indices, based on speckle tracking imaging, for assessment of systemic right ventricular (RV) function after an atrial switch operation for transposition of the great arteries. Design: Cross-sectional study. Setting: Tertiary paediatric cardiac centre. Methods: 26 patients, mean (SD) age 21.0 (3.6) years at 19.9 (3.2) years after an atrial switch operation, and 27 age-matched controls were studied. Two-dimensional imaging at the four-chamber view was obtained with tracing of the entire RV endocardial border. The RV global longitudinal strain (GLS) and GLS rate were derived using automated software (EchoPAC, GE Medical) and correlated with tissue Doppler-derived RV isovolumic acceleration (IVA), and, in the patient cohort, with cardiac magnetic resonance-derived RV ejection fraction. Results: Intra- and interobserver variability for measurement of GLS, as determined from the mean (SD) of differences in two consecutive results from 20 studies, were 0.06 (1.39)% and 0.24 (1.77)%, respectively. Compared with controls, patients had lower RV GLS (17.1 (1.9)% vs 26.3 (2.9)%, p<0.001), a reduced GLS rate (0.78 (0.11)/s vs 1.33 (0.23)/s, p<0.001), lower RV IVA (1.10 (0.36) m/s 2 vs 1.56 (0.53) m/s 2, p<0.001) and increased RV myocardial performance index (0.52 (0.09) vs 0.38 (0.09), p<0.001). Both RV GLS and GLS rate correlated positively with RV IVA (r = 0.43, p = 0.001 and r = 0.46, p<0.001, respectively), and negatively with RV myocardial performance index (r = -0.65, p<0.001 and r = -0.57, p<0.001, respectively). In patients, the GLS rate correlated positively with RV ejection fraction (r = 0.62, p = 0.001). Conclusions: Two-dimensional RV GLS and GLS rate are new, potentially useful indices for assessment of systemic RV function.
Persistent Identifierhttp://hdl.handle.net/10722/57393
ISSN
2015 Impact Factor: 5.693
2015 SCImago Journal Rankings: 2.647
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChow, PCen_HK
dc.contributor.authorLiang, XCen_HK
dc.contributor.authorCheung, EWYen_HK
dc.contributor.authorLam, WWMen_HK
dc.contributor.authorCheung, YFen_HK
dc.date.accessioned2010-04-12T01:35:08Z-
dc.date.available2010-04-12T01:35:08Z-
dc.date.issued2008en_HK
dc.identifier.citationHeart, 2008, v. 94 n. 7, p. 855-859en_HK
dc.identifier.issn1355-6037en_HK
dc.identifier.urihttp://hdl.handle.net/10722/57393-
dc.description.abstractObjectives: To determine the usefulness of new two-dimensional strain indices, based on speckle tracking imaging, for assessment of systemic right ventricular (RV) function after an atrial switch operation for transposition of the great arteries. Design: Cross-sectional study. Setting: Tertiary paediatric cardiac centre. Methods: 26 patients, mean (SD) age 21.0 (3.6) years at 19.9 (3.2) years after an atrial switch operation, and 27 age-matched controls were studied. Two-dimensional imaging at the four-chamber view was obtained with tracing of the entire RV endocardial border. The RV global longitudinal strain (GLS) and GLS rate were derived using automated software (EchoPAC, GE Medical) and correlated with tissue Doppler-derived RV isovolumic acceleration (IVA), and, in the patient cohort, with cardiac magnetic resonance-derived RV ejection fraction. Results: Intra- and interobserver variability for measurement of GLS, as determined from the mean (SD) of differences in two consecutive results from 20 studies, were 0.06 (1.39)% and 0.24 (1.77)%, respectively. Compared with controls, patients had lower RV GLS (17.1 (1.9)% vs 26.3 (2.9)%, p<0.001), a reduced GLS rate (0.78 (0.11)/s vs 1.33 (0.23)/s, p<0.001), lower RV IVA (1.10 (0.36) m/s 2 vs 1.56 (0.53) m/s 2, p<0.001) and increased RV myocardial performance index (0.52 (0.09) vs 0.38 (0.09), p<0.001). Both RV GLS and GLS rate correlated positively with RV IVA (r = 0.43, p = 0.001 and r = 0.46, p<0.001, respectively), and negatively with RV myocardial performance index (r = -0.65, p<0.001 and r = -0.57, p<0.001, respectively). In patients, the GLS rate correlated positively with RV ejection fraction (r = 0.62, p = 0.001). Conclusions: Two-dimensional RV GLS and GLS rate are new, potentially useful indices for assessment of systemic RV function.en_HK
dc.languageengen_HK
dc.publisherB M J Publishing Group. The Journal's web site is located at http://heart.bmjjournals.com/en_HK
dc.relation.ispartofHearten_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsHeart. Copyright © B M J Publishing Group.en_HK
dc.subject.meshTransposition of Great Vessels - surgeryen_HK
dc.subject.meshVentricular Dysfunction, Right - physiopathology - ultrasonographyen_HK
dc.subject.meshCase-Control Studiesen_HK
dc.subject.meshCross-Sectional Studiesen_HK
dc.subject.meshEchocardiography, Doppler, Color - methodsen_HK
dc.titleNew two-dimensional global longitudinal strain and strain rate imaging for assessment of systemic right ventricular functionen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1355-6037&volume=94&issue=7&spage=855&epage=859&date=2008&atitle=New+two-dimensional+global+longitudinal+strain+and+strain+rate+imaging+for+assessment+of+systemic+right+ventricular+functionen_HK
dc.identifier.emailCheung, YF:xfcheung@hku.hken_HK
dc.identifier.authorityCheung, YF=rp00382en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1136/hrt.2007.131862en_HK
dc.identifier.pmid18230639-
dc.identifier.scopuseid_2-s2.0-46249131647en_HK
dc.identifier.hkuros145871-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-46249131647&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume94en_HK
dc.identifier.issue7en_HK
dc.identifier.spage855en_HK
dc.identifier.epage859en_HK
dc.identifier.eissn1468-201X-
dc.identifier.isiWOS:000256721000011-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridChow, PC=23099233800en_HK
dc.identifier.scopusauthoridLiang, XC=12803290200en_HK
dc.identifier.scopusauthoridCheung, EWY=9432819700en_HK
dc.identifier.scopusauthoridLam, WWM=35292558200en_HK
dc.identifier.scopusauthoridCheung, YF=7202111067en_HK
dc.identifier.citeulike10077802-

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