https://www.jacc.org/doi/10.1016/j.jcmg.2023.08.011
The reference ranges for left ventricular (LV) global longitudinal strain and right ventricular free-wall strain were −24% to −16% and −35% to −17%, respectively.
Correspondingly, left atrial (LA) and right atrial (RA) reservoir strains were 17% to 49% and 17% to 59%.
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Participants were positioned in the left lateral decubital position and imaged using Vivid E95 scanners (GE HealthCare) equipped with 4Vc-D and M5S-D phased-array transducers
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Mean frame rate ranged from 71 to 85 frames per second for all 4CH-specific recordings.
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For the LV GLS measurements, a minimum of 10 of 18 segments had to be accepted to be judged as feasible. For the right ventricle, 2 of 3 FW segments had to be accepted to be judged as feasible
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