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. 2018 Aug 2;84(Suppl 1):30–45. doi: 10.1038/s41390-018-0080-2

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© The Author(s) 2018

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Fig. 9 — Segmental strain in the three apical planes of the LV and a summary in a “Bullseye” pattern. Global longitudinal strain (often referred to as GLS) is the peak value in a compound curve made from the region of interest from the three planes