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학술저널
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한국심초음파학회 Journal of Cardiovascular Imaging Journal of Cardiovascular Imaging 제24권 제3호
발행연도
2016.1
수록면
223 - 228 (6page)

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Background: The speckle tracking echocardiography can benefit to assess the regional myocardial deformations. Although,previous reports suggested no significant change in left ventricular (LV) torsion with aging, there are certain differences in LV rotationat the base and apex. The purpose of this study was to evaluate the change and relationship of LV rotation for torsion withaging in children. Methods: Forty healthy children were recruited and divided into two groups of twenty based on whether the children were preschool-age (2–6 years of age) or school-age (7–12 years of age). After obtaining conventional echocardiographic data, apical and basalshort axis rotation were assessed with speckle tracking echocardiography. LV rotation in the basal and apical short axis planes wasdetermined using six myocardial segments along the central axis. Results: Apical and basal LV rotation did not show the statistical difference with increased age between preschool- and schoolagechildren. Apical radial strain showed significant higher values in preschool-age children, especially at the anterior (52.8 ±17.4% vs. 34.7 ± 23.2%, p < 0.02), lateral (55.8 ± 20.4% vs. 36.1 ± 22.7%, p < 0.02), and posterior segments (57.1 ± 17.6% vs. 38.5 ± 21.7%, p < 0.01). The torsion values did not demonstrate the statistical difference between two groups. Conclusion: This study revealed the tendency of higher rotation values in preschool-age children than in school-age children. The lesser values of rotation and torsion with increased age during childhood warrant further investigation.

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