Can contrast dobutamine stress echocardiography be performed with standardized imaging settings for everybody?

Hélène Thibault, Jonathan Timperley, Alexander Ehlgen, Antoine Pariente, Dana Dawson, Harald Becher

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Objective. The objective was to assess a standardized imaging and contrast injection protocol for contrast-enhanced dobutamine stress echocardiography (DSE).
Methods: A total of 102 patients underwent DSE with tissue harmonic imaging and a standardized protocol with contrast power modulation. Contrast intensities in the left ventricular cavity and die myocardium were evaluated by a visual score and quantitative analysis.
Results: Of the contrast studies, 98% were diagnostic without modification of the settings. Excellent endocardial border definition was found in 93% of the segments with contrast versus 53% with tissue harmonic imaging (P <.05). The interobserver agreement in assessing segmental wall motion improved from 71.5% to 85.9%. There were no differences between the myocardial segments' video intensity in the four- and three-chamber views. in the two-chamber view video intensity was lower in the basal segments compared with the other segments.
Conclusion: Power modulation contrast imaging can be applied with a completely standardized protocol for DSE in the majority of patients with excellent endocardial border defnition.
Original languageEnglish
Pages (from-to)1194-1202
Number of pages9
JournalJournal of the American Society of Echocardiography
Volume18
Issue number11
DOIs
Publication statusPublished - 2005

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Stress Echocardiography
Myocardium
Injections

Keywords

  • albumins
  • contrast media
  • coronary artery disease
  • dobutamine
  • echocardiography
  • exercise testing
  • fluorocarbons
  • France
  • Great Britain
  • humans
  • image enhancement
  • image interpretation, computer-assisted
  • Phospholipids
  • physician's practice patterns
  • reference standards
  • reproducibility of results
  • sensitivity and specificity
  • sulfur hexafluoride
  • ventricular dysfunction, left

Cite this

Can contrast dobutamine stress echocardiography be performed with standardized imaging settings for everybody? / Thibault, Hélène; Timperley, Jonathan; Ehlgen, Alexander; Pariente, Antoine; Dawson, Dana; Becher, Harald.

In: Journal of the American Society of Echocardiography, Vol. 18, No. 11, 2005, p. 1194-1202.

Research output: Contribution to journalArticle

Thibault, Hélène ; Timperley, Jonathan ; Ehlgen, Alexander ; Pariente, Antoine ; Dawson, Dana ; Becher, Harald. / Can contrast dobutamine stress echocardiography be performed with standardized imaging settings for everybody?. In: Journal of the American Society of Echocardiography. 2005 ; Vol. 18, No. 11. pp. 1194-1202.
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abstract = "Objective. The objective was to assess a standardized imaging and contrast injection protocol for contrast-enhanced dobutamine stress echocardiography (DSE). Methods: A total of 102 patients underwent DSE with tissue harmonic imaging and a standardized protocol with contrast power modulation. Contrast intensities in the left ventricular cavity and die myocardium were evaluated by a visual score and quantitative analysis. Results: Of the contrast studies, 98{\%} were diagnostic without modification of the settings. Excellent endocardial border definition was found in 93{\%} of the segments with contrast versus 53{\%} with tissue harmonic imaging (P <.05). The interobserver agreement in assessing segmental wall motion improved from 71.5{\%} to 85.9{\%}. There were no differences between the myocardial segments' video intensity in the four- and three-chamber views. in the two-chamber view video intensity was lower in the basal segments compared with the other segments. Conclusion: Power modulation contrast imaging can be applied with a completely standardized protocol for DSE in the majority of patients with excellent endocardial border defnition.",
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AU - Ehlgen, Alexander

AU - Pariente, Antoine

AU - Dawson, Dana

AU - Becher, Harald

PY - 2005

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N2 - Objective. The objective was to assess a standardized imaging and contrast injection protocol for contrast-enhanced dobutamine stress echocardiography (DSE). Methods: A total of 102 patients underwent DSE with tissue harmonic imaging and a standardized protocol with contrast power modulation. Contrast intensities in the left ventricular cavity and die myocardium were evaluated by a visual score and quantitative analysis. Results: Of the contrast studies, 98% were diagnostic without modification of the settings. Excellent endocardial border definition was found in 93% of the segments with contrast versus 53% with tissue harmonic imaging (P <.05). The interobserver agreement in assessing segmental wall motion improved from 71.5% to 85.9%. There were no differences between the myocardial segments' video intensity in the four- and three-chamber views. in the two-chamber view video intensity was lower in the basal segments compared with the other segments. Conclusion: Power modulation contrast imaging can be applied with a completely standardized protocol for DSE in the majority of patients with excellent endocardial border defnition.

AB - Objective. The objective was to assess a standardized imaging and contrast injection protocol for contrast-enhanced dobutamine stress echocardiography (DSE). Methods: A total of 102 patients underwent DSE with tissue harmonic imaging and a standardized protocol with contrast power modulation. Contrast intensities in the left ventricular cavity and die myocardium were evaluated by a visual score and quantitative analysis. Results: Of the contrast studies, 98% were diagnostic without modification of the settings. Excellent endocardial border definition was found in 93% of the segments with contrast versus 53% with tissue harmonic imaging (P <.05). The interobserver agreement in assessing segmental wall motion improved from 71.5% to 85.9%. There were no differences between the myocardial segments' video intensity in the four- and three-chamber views. in the two-chamber view video intensity was lower in the basal segments compared with the other segments. Conclusion: Power modulation contrast imaging can be applied with a completely standardized protocol for DSE in the majority of patients with excellent endocardial border defnition.

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KW - exercise testing

KW - fluorocarbons

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KW - Great Britain

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KW - image enhancement

KW - image interpretation, computer-assisted

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KW - sensitivity and specificity

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