Mitral annular velocities generated by speckle tracking imaging: Reproducibility and correlation with tissue Doppler velocities

Smadar Kort, Purnema Madahar, Akash Ajmera, David L. Brown

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Background: Early diastolic mitral annular velocities (E′) are routinely generated by tissue Doppler imaging (TDI), an angle-dependent technique. Velocity vector imaging (VVI) lacks this limitation. Normal VVI E′ values and their correlation with TDI E′ are unknown. Methods: E′ by VVI and TDI were compared in 100 patients. Results: VVI velocities are lower and correlate moderately with TDI velocities for medial E′ (r = 0.405) and mildly for lateral E′ (r = 0.278) and are image quality dependent. In patients with diastolic or systolic dysfunction, no correlation was found. E′ < 0.06 m/s by VVI for the medial and lateral annulus can detect abnormal diastolic function with sensitivity of 90% and 77%, respectively, and with specificity of 56% and 52%, respectively. Conclusions: E′ by VVI is lower than by TDI with a poor agreement between the measurements, which are therefore not interchangeable. Although VVI can be performed offline, this method is dependent on image quality.

Original languageEnglish
Pages (from-to)637-643
Number of pages7
JournalEchocardiography
Volume27
Issue number6
DOIs
StatePublished - Jul 1 2010
Externally publishedYes

Keywords

  • diastolic function
  • mitral annular velocity
  • tissue Doppler imaging
  • velocity vector imaging

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