Retrospective Study
Copyright ©The Author(s) 2022.
World J Clin Cases. May 6, 2022; 10(13): 4050-4063
Published online May 6, 2022. doi: 10.12998/wjcc.v10.i13.4050
Table 1 Comparison of left ventricular volume and left ventricular ejection fraction measured by the different transthoracic echocardiographic methods in 4 groups (mean ± SD)
Parameter
3DQA
Teichholz
Biplane Simpson
3DQ
HM-NE
HM-RE
Group A (control group, n = 42)
LVEDV (mL)77.5 ± 13.782.5 ± 11.6a70.6 ± 10.9a77.1 ± 15.491.0 ± 17.5a86.3 ± 15.9a
LVESV (mL)25.7 ± 5.327.5 ± 4.924.2 ± 4.5a26.3 ± 6.731.5 ± 6.9a29.6 ± 6.4a
LVEF (%)66.6 ± 4.366.5 ± 4.265.6 ± 3.4a65.8 ± 4.0a65.2 ± 4.2a65.5 ± 3.9a
LAESV (mL)36.8 ± 9.6NS35.2 ± 9.9aNS41.2 ± 10.5a39.8 ± 10.6a
Group B (DCM, n = 35)
LVEDV (mL)147.4 ± 34.7205.7 ± 52.7a162.7 ± 46.6a154.3 ± 38.0a187.5 ± 52.3a186.1 ± 45.8a
LVESV (mL)96.6 ± 30.0132.4 ± 40.4a103.1 ± 36.199.7 ± 32.3a115.6 ± 39.0a119.6 ± 40.4a
LVEF (%)35.1 ± 9.536.2 ± 7.937.3 ± 8.835.9 ± 9.337.9 ± 11.135.9 ± 9.4
LAESV (mL)60.4 ± 26.5NS62.9 ± 33.0NS68.0 ± 34.6a69.4 ± 33.1a
Group C (SWMA, n = 41)
LVEDV (mL)121.4 ± 50.8183.8 ± 73.1a135.1 ± 51.7a124.7 ± 51.9a170.3 ± 57.7a162.5 ± 56.9a
LVESV (mL)74.2 ± 35.6111.6 ± 56.4a79.6 ± 37.275.4 ± 35.394.5 ± 40.4a95.5 ± 40.2a
LVEF (%)40.0 ± 10.241.5 ± 10.142.4 ± 10.240.6 ± 8.445.3 ± 11.8a42.5 ± 8.6a
LAESV (mL)73.2 ± 51.0NS74.4 ± 53.5NS84.9 ± 57.4a82.4 ± 57.8a
Group D (HCM, n = 32)
LVEDV (mL)80.0 ± 21.5104.8 ± 32.2a75.7 ± 21.680.6 ± 22.4112.6 ± 27.1a105.6 ± 31.6a
LVESV (mL)27.8 ± 8.732.3 ± 12.324.7 ± 9.5a28.3 ± 9.547.1 ± 14.8a40.1 ± 14.0a
LVEF (%)65.1 ± 5.669.4 ± 6.4a67.6 ± 7.1a65.0 ± 5.758.3 ± 7.5a62.1 ± 5.6a
LAESV (mL)70.4 ± 30.5NS71.5 ± 38.5NS89.3 ± 45.3a83.1 ± 42.1a
Table 2 Comparison of left ventricular volume and left ventricular ejection fraction measured by HeartModel with and without regional endocardial border editing (mean ± SD)
GroupHM-NE
HM-RE
LVEDV (mL)
LVESV (mL)
LVEF (%)
LAESV (mL)
LVEDV (mL)
LVESV (mL)
LVEF (%)
LAESV (mL)
Group A91.0 ± 17.5a31.5 ± 6.9a65.2 ± 4.241.2 ± 10.5a86.3 ± 15.929.6 ± 6.465.5 ± 3.939.8 ± 10.6
Group B187.5 ± 52.3115.6 ± 39.037.9 ± 11.168.0 ± 34.6186.1 ± 45.8119.6 ± 40.435.9 ± 9.469.4 ± 33.1
Group C170.3 ± 57.7a94.5 ± 40.445.3 ± 11.8a84.9 ± 57.4a162.5 ± 56.995.5 ± 40.242.5 ± 8.682.4 ± 57.8
Group D112.6 ± 27.1a47.1 ± 14.8a58.3 ± 7.5a89.3 ± 45.3105.6 ± 31.640.1 ± 14.062.1 ± 5.683.1 ± 42.1
Table 3 Comparison of left ventricular volume and left ventricular ejection fraction measured by M-mode echocardiography, Biplane Simpson, and HeartModel methods against advanced cardiac three-dimensional quantification
Parameter
rs
Bias ± LOA
Relative bias (%)
Percentage error (%)
Teichholz (n = 150)
LVEDV (mL)0.8237.3 ± 82.735.166.1
LVESV (mL)0.9120.0 ± 56.235.885.2
LVEF (%)0.891.5 ± 12.33.023.5
Biplane Simpson (n = 150)
LVEDV (mL)0.874.6 ± 46.84.343.0
LVESV (mL)0.941.9 ± 26.93.447.2
LVEF (%)0.911.4 ± 11.82.722.6
LAESV (mL)0.930.7 ± 23.71.239.6
3DQ (n = 150)
LVEDV (mL)0.962.4 ± 21.32.319.8
LVESV (mL)0.981.3 ± 11.22.319.8
LVEF (%)0.980.1 ± 5.20.210.1
HM-NE (n = 150)
LVEDV (mL)0.8533.4 ± 56.431.445.8
LVESV (mL)0.9015.7 ± 33.028.051.6
LVEF (%)0.85-0.2 ± 16.8-0.4-32.5
LAESV (mL)0.9310.2 ± 30.317.247.0
HM-RE (n = 150)
LVEDV (mL)0.9128.1 ± 47.626.439.5
LVESV (mL)0.9314.92 ± 30.926.648.7
LVEF (%)0.95-0.0 ± 9.8-0.0-19.0
LAESV (mL)0.958.1 ± 23.713.737.4
Table 4 Comparison of left ventricular volume and left ventricular ejection fraction measured by HeartModel with regional endocardial border editing and advanced cardiac three-dimensional quantification in 4 groups (mean ± SD)
Parameter
HM-RE
3DQA
rs
Bias ± LOA
Relative bias (%)
Percentage error (%)
Group A (control group, n = 42)
LVEDV (mL)86.3 ± 15.9a77.5 ± 13.70.828.8 ± 16.111.310.7
LVESV (mL)29.6 ± 6.4a25.7 ± 5.30.853.8 ± 5.515.114.0
LVEF (%)65.5 ± 3.9a66.6 ± 4.30.96-1.0 ± 2.4-1.5-1.5
LAESV (mL)39.8 ± 10.6a36.8 ± 9.60.972.9 ± 3.98.17.7
Group B (DCM, n = 35)
LVEDV (mL)186.1 ± 45.8a147.4 ± 34.70.8338.6 ± 45.726.223.1
LVESV (mL)119.6 ± 40.4a96.6 ± 30.00.8623.0 ± 39.623.821.3
LVEF (%)35.9 ± 9.435.1 ± 9.50.710.7 ± 12.82.22.2
LAESV (mL)69.4 ± 33.1a60.4 ± 26.50.927.5 ± 27.712.511.8
Group C (SWMA, n = 41)
LVEDV (mL)162.5 ± 56.9a121.4 ± 50.80.9041.0 ± 46.733.828.9
LVESV (mL)95.5 ± 40.2a74.2 ± 35.60.9021.3 ± 31.028.725.1
LVEF (%)42.5 ± 8.6a40.0 ± 10.20.802.5 ± 11.06.26.0
LAESV (mL)82.4 ± 57.8a73.2 ± 51.00.899.2 ± 25.712.611.9
Group D (HCM, n = 32)
LVEDV (mL)105.6 ± 31.6a80.0 ± 21.50.5425.5 ± 46.431.927.5
LVESV (mL)40.1 ± 14.0a27.8 ± 8.70.4812.3 ± 20.926.136.2
LVEF (%)62.1 ± 5.6a65.1 ± 5.60.78-2.9 ± 6.5-5.0-4.6
LAESV (mL)83.1 ± 42.1a70.4 ± 30.50.9812.7 ± 31.118.116.6
Table 5 Intraobserver, and interobserver variability (coefficient of variation) for the HeartModel with regional endocardial border editing in 4 Groups (mean ± SD)
GroupIntraobserver (%)
Interobserver (%)
LVEDV (mL)
LVESV (mL)
LVEF (%)
LAESV (mL)
LVEDV (mL)
LVESV (mL)
LVEF (%)
LAESV (mL)
Group A6.6 ± 5.611.1 ± 10.44.2 ± 3.85.8 ± 5.56.7 ± 3.811.3 ± 7.44.2 ± 2.17.2 ± 6.0
Group B6.6 ± 5.110.2 ± 4.98.4 ± 9.48.4 ± 5.17.8 ± 3.210.4 ± 5.28.7 ± 6.38.5 ± 4.8
Group C9.1 ± 7.510.2 ± 7.37.9 ± 11.97.2 ± 7.39.4 ± 5.810.2 ± 7.18.2 ± 6.28.1 ± 6.0
Group D10.3 ± 4.614.9 ± 5.27.1 ± 1.77.5 ± 5.717.1 ± 7.620.1 ± 7.47.8 ± 5.17.7 ± 5.1