Show simple item record

dc.contributor.authorTong, X
dc.contributor.authorPoon, J
dc.contributor.authorLi, A
dc.contributor.authorKit, C
dc.contributor.authorYamada, A
dc.contributor.authorShiino, K
dc.contributor.authorLing, LF
dc.contributor.authorChoe, YH
dc.contributor.authorChan, J
dc.contributor.authorLau, Y-K
dc.contributor.authorNg, M-Y
dc.description.abstractAIM: To investigate the accuracy of cardiac magnetic resonance (CMR) tissue tracking (CMRTT) and speckle tracking echocardiography (STE) against CMR determined right ventricular (RV) ejection fraction (RVEF) and to identify an optimal cut-off value for STE and CMR-TT to determine RVEF <45% and compare this to other conventional methods for estimating RVEF in dilated cardiomyopathy (DCM) patients. MATERIALS AND METHODS: Twenty-nine DCM patients were recruited prospectively. CMR and echocardiography were performed within 48 hours and four-chamber views were used for strain analysis. Contoured CMR short axis images provided RVEF. Intraclass correlation coefficient (ICC), bias, levels of agreement, and receiver operating characteristic (ROC) curve analyses were performed. RESULTS: CMR-TT RV free-wall longitudinal strain (FLS) and STE RV global longitudinal strain (GLS) showed the best correlation with RVEF (r¼e0.68, r¼e0.82, p<0.001 respectively). There was moderate correlation between echocardiography RV GLS and CMR RV FLS (r¼0.64, p<0.001). CMR-TT FLS showed excellent intra-observer and interobserver reliability (ICC¼0.980; ICC¼0.968 respectively). STE GLS correlated better with RVEF than with peak systolic annular velocity (S’; r¼0.45), tricuspid annular plane systolic excursion (TAPSE; r¼0.56), and fractional area change (FAC; r¼0.78). CMR-TT RV FLS had better correlation with RVEF than CMR TAPSE (r¼0.69 versus 0.40). ROC analysis demonstrated the optimal cut-off value for CMR-TT RV FLS and STE GLS in detection of RVEF <45% was e24.4% (area under the curve¼0.87, 100% sensitivity, 66.7% specificity) and e20.9% (area under the curve¼0.88, 100% sensitivity, 60% specificity) respectively. CONCLUSION: CMR-TT FLS and STE GLS showed potential to provide rapid assessment of RV function and had superior correlation with RVEF compared to conventional parameters.
dc.publisher.placeUnited Kingdom
dc.relation.ispartofjournalClinical Radiology
dc.subject.fieldofresearchClinical Sciences not elsewhere classified
dc.subject.fieldofresearchClinical Sciences
dc.titleValidation of cardiac magnetic resonance tissue tracking in the rapid assessment of RV function: A comparative study to echocardiography
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorLau, Kam
gro.griffith.authorYamada, Akira
gro.griffith.authorChan, Jonathan H.
gro.griffith.authorShiino, Kenji

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record