Correlation of Automated Function Imaging (AFI) to Conventional Strain Analyses of Regional and Global Right Ventricular Function

Anna M. Calleja, Panupong Jiamsripong, Mohsen S. Alharthi, Stephen Cha, Eun Joo Cho, Eileen M. McMahon, Farouk Mookadam, Bijoy K. Khandheria, Marek Belohlavek

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Background: Automated function imaging is a software tool available to facilitate the efficiency of workflow when analyzing left ventricular strain. In this study, automated function imaging was compared with a conventional approach for the analysis of right ventricular strain in normal and pressure-overloaded right ventricles. Methods: Twelve pigs were subjected to graded acute right ventricular systolic pressure overload. Intraclass and interclass correlation coefficients (ICCs) with 95% confidence intervals were used for statistical evaluation, with grading based on the κ statistic as follows: ICC >0.75 = excellent, 0.4 to 0.75 = good, and <0.40 = poor. Results: Intraobserver and interobserver variability for both regional and global strains consistently ranged from good to excellent (ICC, 0.50-0.99), with good agreement between the conventional and automated methods. Conclusion: Automated function imaging correlates well with conventional strain analysis of the right ventricle. Automated function imaging is a practical tool for measuring regional and global longitudinal strain in both normal and pressure-overloaded right ventricles.

Original languageEnglish (US)
Pages (from-to)1031-1039
Number of pages9
JournalJournal of the American Society of Echocardiography
Volume22
Issue number9
DOIs
StatePublished - Sep 2009

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Right Ventricular Function
Heart Ventricles
Pressure
Observer Variation
Workflow
Ventricular Pressure
Swine
Software
Confidence Intervals
Blood Pressure

Keywords

  • Automated strain imaging
  • Longitudinal strain
  • Right ventricular function

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

Cite this

Correlation of Automated Function Imaging (AFI) to Conventional Strain Analyses of Regional and Global Right Ventricular Function. / Calleja, Anna M.; Jiamsripong, Panupong; Alharthi, Mohsen S.; Cha, Stephen; Cho, Eun Joo; McMahon, Eileen M.; Mookadam, Farouk; Khandheria, Bijoy K.; Belohlavek, Marek.

In: Journal of the American Society of Echocardiography, Vol. 22, No. 9, 09.2009, p. 1031-1039.

Research output: Contribution to journalArticle

Calleja, Anna M. ; Jiamsripong, Panupong ; Alharthi, Mohsen S. ; Cha, Stephen ; Cho, Eun Joo ; McMahon, Eileen M. ; Mookadam, Farouk ; Khandheria, Bijoy K. ; Belohlavek, Marek. / Correlation of Automated Function Imaging (AFI) to Conventional Strain Analyses of Regional and Global Right Ventricular Function. In: Journal of the American Society of Echocardiography. 2009 ; Vol. 22, No. 9. pp. 1031-1039.
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