Table 4.
Summary of echocardiography parameters NR – Not reported; SD – Standard Deviation; LVEDV – Left ventricular end diastolic volume; LVESV – Left ventricular end systolic volume; LVEF - left ventricular ejection fraction; GLS – Global longitudinal strain (presented in whole numbers as opposed to negatives); MR – Mitral regurgitation.
| Study | Echocardiography Machines | Software for GLS analysis | LVEDV (mL) (SD) (range = IQR) |
LVESV (mL) (SD) (range = IQR) |
LVESV Index (mL/m2) (SD) |
LVEF (%) (SD) |
GLS (%) (SD) |
GLS Interobserver correlation Coefficient | GLS Intraobserver correlation Coefficient |
MR Grades (%) |
|---|---|---|---|---|---|---|---|---|---|---|
| Khidir et al. (2018) [13] | GE Vivid 5 or 7, E9 | EchoPAC v.113 GE Healthcare, Horten, Norway | 210 (78) | 156 (68) | NR | 27 (8) | −7.9 (2.7) | 0.95 | 0.99 | 0–2: 710 (86) 3–4: 118 (14) |
| Bax et al. (2017) [15] | GE Vivid 7, E9 | EchoPAC version BT 11–12 GE Heathcare, Horten, Norway | 188 (59) | 139 (50) | NR | 27 (5.5) | −8.2 (2.8) | 0.92 | 0.97 | 0–2: 670 (83) 3–4: 77 (10) |
| Hasselberg et al. (2016) [14] | GE Vivid 7, E9 | EchoPAC GE Healthcare, Horten, Norway | NR | NR | 70 (30) | 26 (9) | −8.2 (3.9) | 0.92 | 0.94 | NR |
| Delgado-Montero et al. (2016) [16] | GE Vivid 7 | EchoPAC BT11 or BT12, GE Vingmed, Horten, Norway |
198 (72) | 152 (62) | NR | 24 (6) | −8.9 (3.1) | 0.92 | 0.97 | NR |
| Van Der Bijl et al. (2019) [21] | GE Vivid 7 or E9 | EchoPAC v.113, GE Healthcare, Horten, Norway | 204 (76) | 151 (66) | NR | 27 (8) | −7.3 (3.4) | 0.92 | 0.97 | NR |
| Knappe et al. (2011) [18] | NR (110 hospital sites) | TomTec Imaging Systems, Unterschleissheim, Germany | 219 (39) − 284 (74) | 151 (31) – 207 (60) | NR | 28.8 (3.4) – 31.1 (3.3) | −8.5 (2.9) to −9.5 (3) | Correlation coefficient NR. Coefficient of variation = 8% | Correlation coefficient NR. Coefficient of variation = 7.7% | NR |
| Menet et al. (2016) [19] | GE Vivid E9 | EchoPAC BT12, GE Vingmed, Horten, Norway |
250 (68) | NR | NR | 26 (5) | −8 (2.8) | 0.9 | NR | NR |
| Kalogeropoulos et al. (2011) [17] | NR | 2D Cardiac Performance Analysis Image Arena TomTec Imaging systems (version not specified) | 209 (171–301) | 180 (112–253) | NR | 22 (17–25) | −6.5 (5–8.4) | NR | NR | NR |
| Park et al. (2013) [20]) | NR | Velocity Vector Imaging (Axius, Siemens Medical Solutions, Mountain View, CA) | NR | NR | 74 (33) | 24 (7) | −7.2 (2.6) | 0.97 (95% CI, 0.9–0.99) | 0.97 (95% CI, 0.88–0.99) | 2–4: 62 (39) |