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https://dx.doi.org/10.21542%2Fgcsp.2019.6
Comparison of vector velocity imaging and three-dimensional speckle tracking echocardiography for assessment of left ventricular longitudinal strain in hypertrophic cardiomyopathy
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Comparison between VVI and 3D longitudinal strain.
| Variable | 2D-VVI | 3D-STE | P-value |
|---|---|---|---|
| Analyzed segments (%) | 94.7% | 61.2% | <0.001 |
| Acquisition time (min) | 3.2 ± 1.3 | 1.6 ± 0.8 | <0.01 |
| Analysis time (min) | 3.3 ± 1.2 | 2.9 ± 0.7 | <0.01 |
| Total time (min) | 6.1 ± 1.4 | 4.3 ± 1.2 | <0.01 |
| Intra-observer variability (%) | 2.3 ± 0.22 | 5.7 ± 4.3 | <0.001 |
| Inter-class correlation (%) | 92% | 84% | <0.01 |
| Inter-observer variability (%) | 2.6 ± 0.25 | 6.2 ± 5.5 | <0.002 |
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Conclusão:
VVI is a feasible modality for assessing LV longitudinal strain. It agreed well with 3D-STE for most of regional and global LS. It provides more complete and reproducible tool in assessment of global LV long axis function
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Será que o Strain Vetorial reúne vantagens que o colocam como melhor opção no estudo da deformação ventricular?
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Isto seria um problema no momento pois a maioria dos fabricantes escolheu o Strain 2D.
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Você precisa saber disto antes de comprar um novo aparelho só para realizar o estudo da deformação?
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