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Segment-orientated analysis of two-dimensional strain and strain rate as assessed by velocity vector imaging in patients with acute myocardial infarction.

Butz T, Lang CN, van Bracht M, Prull MW, Yeni H, Maagh P, Plehn G, Meissner A, Trappe HJ - Int J Med Sci (2011)

Bottom Line: The study population consisted of 32 AMI patients with an LAD occlusion and successful reperfusion.The infarcted, adjacent and non-infarcted segments were revealed by late enhancement MRI (LE-MRI), which was used as reference for the comparison with 2DS.The infarcted segments showed a significant decrease of tissue velocities, 2DS and SR in comparison to the non-affected segments. 2DS and SR as assessed by VVI seem to be a suitable approach for echocardiographic quantification of global and regional myocardial function as well as a promising tool for multimodal risk stratification after anterior AMI.

View Article: PubMed Central - PubMed

Affiliation: Department of Cardiology and Angiology, Marienhospital Herne, Ruhr University Bochum, Herne, Germany. Thomas.Butz@Marienhospital-Herne.de

ABSTRACT

Aims: Strain rate imaging techniques have been proposed for the detection of ischemic or viable myocardium in coronary artery disease, which is still a challenge in clinical cardiology. This retrospective comparative study analyzed regional left ventricular function and scaring with two-dimensional strain (2DS) in the first 4 to 10 days after acute anterior myocardial infarction (AMI).

Methods and results: The study population consisted of 32 AMI patients with an LAD occlusion and successful reperfusion. The assessment of peak systolic 2DS and peak systolic strain rate (SR) was performed segment-oriented with the angle-independent speckle tracking algorithm Velocity Vector Imaging (VVI). The infarcted, adjacent and non-infarcted segments were revealed by late enhancement MRI (LE-MRI), which was used as reference for the comparison with 2DS. The infarcted segments showed a significant decrease of tissue velocities, 2DS and SR in comparison to the non-affected segments.

Conclusion: 2DS and SR as assessed by VVI seem to be a suitable approach for echocardiographic quantification of global and regional myocardial function as well as a promising tool for multimodal risk stratification after anterior AMI.

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Related in: MedlinePlus

Significant difference of Strain (A; ANOVA: p < 0.05) and S´ (right) between infarcted, adjacent and non-infarcted segments (B; ANOVA: p<0.01)
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Figure 2: Significant difference of Strain (A; ANOVA: p < 0.05) and S´ (right) between infarcted, adjacent and non-infarcted segments (B; ANOVA: p<0.01)

Mentions: The comparison of infarcted and non-infarcted segments showed a significant difference (p < 0.05) according to 2DS, dSR and tissue velocities, which is depicted in Table 4 and Figures 2, 3. Infarcted segments demonstrated significantly decreased 2DS as well as tissue velocities in comparison to adjacent and non-infarcted segments.


Segment-orientated analysis of two-dimensional strain and strain rate as assessed by velocity vector imaging in patients with acute myocardial infarction.

Butz T, Lang CN, van Bracht M, Prull MW, Yeni H, Maagh P, Plehn G, Meissner A, Trappe HJ - Int J Med Sci (2011)

Significant difference of Strain (A; ANOVA: p < 0.05) and S´ (right) between infarcted, adjacent and non-infarcted segments (B; ANOVA: p<0.01)
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3039226&req=5

Figure 2: Significant difference of Strain (A; ANOVA: p < 0.05) and S´ (right) between infarcted, adjacent and non-infarcted segments (B; ANOVA: p<0.01)
Mentions: The comparison of infarcted and non-infarcted segments showed a significant difference (p < 0.05) according to 2DS, dSR and tissue velocities, which is depicted in Table 4 and Figures 2, 3. Infarcted segments demonstrated significantly decreased 2DS as well as tissue velocities in comparison to adjacent and non-infarcted segments.

Bottom Line: The study population consisted of 32 AMI patients with an LAD occlusion and successful reperfusion.The infarcted, adjacent and non-infarcted segments were revealed by late enhancement MRI (LE-MRI), which was used as reference for the comparison with 2DS.The infarcted segments showed a significant decrease of tissue velocities, 2DS and SR in comparison to the non-affected segments. 2DS and SR as assessed by VVI seem to be a suitable approach for echocardiographic quantification of global and regional myocardial function as well as a promising tool for multimodal risk stratification after anterior AMI.

View Article: PubMed Central - PubMed

Affiliation: Department of Cardiology and Angiology, Marienhospital Herne, Ruhr University Bochum, Herne, Germany. Thomas.Butz@Marienhospital-Herne.de

ABSTRACT

Aims: Strain rate imaging techniques have been proposed for the detection of ischemic or viable myocardium in coronary artery disease, which is still a challenge in clinical cardiology. This retrospective comparative study analyzed regional left ventricular function and scaring with two-dimensional strain (2DS) in the first 4 to 10 days after acute anterior myocardial infarction (AMI).

Methods and results: The study population consisted of 32 AMI patients with an LAD occlusion and successful reperfusion. The assessment of peak systolic 2DS and peak systolic strain rate (SR) was performed segment-oriented with the angle-independent speckle tracking algorithm Velocity Vector Imaging (VVI). The infarcted, adjacent and non-infarcted segments were revealed by late enhancement MRI (LE-MRI), which was used as reference for the comparison with 2DS. The infarcted segments showed a significant decrease of tissue velocities, 2DS and SR in comparison to the non-affected segments.

Conclusion: 2DS and SR as assessed by VVI seem to be a suitable approach for echocardiographic quantification of global and regional myocardial function as well as a promising tool for multimodal risk stratification after anterior AMI.

Show MeSH
Related in: MedlinePlus