2021 Volume 46 Issue 5 Pages 463-470
Purpose: Recently, the global longitudinal strain (GLS) has gained popularity as a parameter for evaluating left ventricular function besides evaluating left ventricular ejection fraction. However, its low interdevice reliability has been an issue. GE Healthcare LOGIQ E10, released in 2018, has been introduced in many institutions as a multipurpose ultrasound system and used for echocardiography and abdominal and breast ultrasounds. This study aimed to assess the interdevice reliability of LOGIQ E10 and Vivid E95, a dedicated cardiovascular ultrasound system, in measuring GLS.
Subjects and Methods: We enrolled 44 patients who underwent echocardiography at the Ultrasound Examination Center, Tokushima University Hospital. The mean age of the patients was 65±15 years, and 20 of them were male. Strain analysis was performed, and GLS was measured using LOGIQ E10 and Vivid E95. The correlation coefficients of GLS were calculated for the two devices, and the variability and error were evaluated by Bland–Altman analysis.
Results and Discussion: The correlation coefficient of GLS was r＝0.957 (p＜0.01), indicating a good correlation between the two devices. Bland–Altman analysis showed a bias of 0.0% and limits of agreement of −2.4% to 2.5%, indicating minimal measurement error and variability.
Conclusions: GLS measurements between LOGIQ E10 and Vivid E95 had a good correlation and high interdevice reliability. Therefore, we can say that LOGIQ E10 can evaluate GLS with the same precision as that of Vivid E95.
