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Abstract #3141

Age-stratified normal left atrial deformation assessed by novel longitudinal strain parameters on a 3T MR scanner

Shuang Leng1, Xiaodan Zhao1, Angela Su-Mei Koh1,2, Ru San Tan1,2, and Liang Zhong1,2

1National Heart Centre Singapore, Singapore, Singapore, 2Duke-NUS Medical School Singapore, Singapore, Singapore

The aim of this study was to examine the age-related normal left atrial (LA) longitudinal deformation by a novel and fast assessable strain parameter with standard cardiac magnetic resonance (CMR) imaging. A total of 60 heathy subjects (30 males, age between 20 and 80 years) were categorized by age into young, middle-aged, and elderly adults. The LA longitudinal strain and strain rate measurements corresponding to reservoir and conduit phases were negatively related to age, while no significant age-dependency was observed for LA contraction strain and strain rate values. These strain parameters can be used to evaluate LA deformation and functionality.

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