Evaluation of 2-D speckle tracking based Strain Rate Imaging (SRI) using a 3-D heart simulation model

X. Chen, X. Li, D. Sahn, K. Kim, H. Xie, M. O'Donnell

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations


Preliminary 2-D SRI results from a porcine heart model showed significant average residual accumulation error (RAE) in the total displacement, similar to widely reported baseline drift artifacts in SRI [1-2]. Therefore, to understand the performance of 2-D SRI methods in a controlled 3-D environment, a left-ventricle simulation model with physiological deformation was developed. Torsion was added to move tissue in and out of the image plane. A phasedarray imaging system was simulated to generate 2-D image sequences for typical cardiac scans. Results show the presence of RAE, which reaches a minimum at a frame rate (FR) of 75 frame/cycle corresponding to 2-3% peak frame-to-frame strain. RAE increases as torsion increases. In addition, the RAE map also spatially correlates well with both out-of-plane motion and cross-correlation coefficient maps. These results suggest that out-of-plane motion plays a significant role in RAE. To optimize SNR in displacement estimates, a retrospective processing strategy employing different frame intervals for different periods in a cardiac cycle is presented.

Original languageEnglish (US)
Title of host publicationProceedings - 2004 IEEE Ultrasonics Symposium
Subtitle of host publicationA Conference of the IEEE International Ultrasonics, Ferroelectrics, and Frequency Control Society, UFFC-S
EditorsM.P. Yuhas
Number of pages4
StatePublished - Dec 1 2004
Event2004 IEEE Ultrasonics Symposium - Montreal, Que., Canada
Duration: Aug 23 2004Aug 27 2004

Publication series

NameProceedings - IEEE Ultrasonics Symposium
ISSN (Print)1051-0117


Other2004 IEEE Ultrasonics Symposium
CityMontreal, Que.

ASJC Scopus subject areas

  • Acoustics and Ultrasonics


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