dc.contributor.author | Chan, Jonathan | |
dc.contributor.author | Shiino, Kenji | |
dc.contributor.author | Obonyo, Nchafatso G | |
dc.contributor.author | Hanna, Joseph | |
dc.contributor.author | Chamberlain, Robert | |
dc.contributor.author | Small, Andrew | |
dc.contributor.author | Scalia, Isabel G | |
dc.contributor.author | Scalia, William | |
dc.contributor.author | Yamada, Akira | |
dc.contributor.author | Hamilton-Craig, Christian R | |
dc.contributor.author | Scalia, Gregory M | |
dc.contributor.author | Luis Zamorano, Jose | |
dc.date.accessioned | 2017-11-08T12:00:23Z | |
dc.date.available | 2017-11-08T12:00:23Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0894-7317 | |
dc.identifier.doi | 10.1016/j.echo.2017.06.010 | |
dc.identifier.uri | http://hdl.handle.net/10072/344134 | |
dc.description.abstract | Background: The application of left ventricular (LV) global strain by speckle-tracking is becoming more widespread,
with the potential for incorporation into routine clinical echocardiography in selected patients. There
are no guidelines or recommendations for the training requirements to achieve competency. The aim of this
study was to determine the learning curve for global strain analysis and determine the number of studies
that are required for independent reporting.
Methods: Three groups of novice observers (cardiology fellows, cardiac sonographers, medical students)
received the same standardized training module prior to undertaking retrospective global strain analysis on
100 patients over a period of 3 months. To assess the effect of learning, quartiles of 25 patients were read successively
by each blinded observer, and the results were compared to expert for correlation.
Results: Global longitudinal strain (GLS) had uniform learning curves and was the easiest to learn, requiring a
minimum of 50 patients to achieve expert competency (intraclass correlation coefficient > 0.9) in all three
groups over a period of 3 months. Prior background knowledge in echocardiography is an influential factor
affecting the learning for interobserver reproducibility and time efficiency. Short-axis strain analysis using
global circumferential stain and global radial strain did not yield a comprehensive learning curve, and expert
level was not achieved by the end of the study.
Conclusions: There is a significant learning curve associated with LV strain analysis. We recommend a minimum
of 50 studies for training to achieve competency in GLS analysis. | |
dc.description.peerreviewed | Yes | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | Mosby | |
dc.relation.ispartofpagefrom | 1081 | |
dc.relation.ispartofpageto | 1090 | |
dc.relation.ispartofissue | 11 | |
dc.relation.ispartofjournal | Journal of the American Society of Echocardiography | |
dc.relation.ispartofvolume | 30 | |
dc.subject.fieldofresearch | Cardiovascular medicine and haematology | |
dc.subject.fieldofresearch | Cardiology (incl. cardiovascular diseases) | |
dc.subject.fieldofresearchcode | 3201 | |
dc.subject.fieldofresearchcode | 320101 | |
dc.title | Left Ventricular Global Strain Analysis by Two-Dimensional Speckle-Tracking Echocardiography: The Learning Curve | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - Journal Articles | |
gro.faculty | Griffith Health, School of Medicine | |
gro.description.notepublic | This publication has been entered into Griffith Research Online as an Advanced Online Version. | |
gro.hasfulltext | No Full Text | |
gro.griffith.author | Chan, Jonathan H. | |