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Table 4.

Analysis of continuous variable measurements in echocardiography (mean±SD)

Variable Reader 1 Reader 2 Reader 3 Reader 0 P-value
Base right ventricle (mm) 41.0±9.7 46.2±8.3 43.4±9.2 43.9±9.1 <0.001
Mid right ventricle (mm) 34.7±9.8 34.4±7.1 34.9±9.1 35.4±9.2 <0.001
Right ventricle fractional area change (%) 32.6±12.1 30.9±9.5 36.2±11.0 33.5±10.2 <0.001
Right ventricle tricuspid annular plane systolic excursion (mm) 19.6±5.6 16.5±4.3 17.4±4.5 17.4±4.6 <0.001
Right ventricle S’ (m/sec) 0.14±0.04 0.1±0.02 0.17±0.2 0.14±0.2 <0.001
Mean pulmonary artery pressure (mmHg) 33.7±12.4 35.9±9.7 37.4±11.9 36.5±10.7 0.032
Right ventricle systolic pressure (mmHg) 57.3±29.1 61.3±30.5 60.5±27.7 60.6±27.8 0.462
Right atrium size (mm) 42.1±12.8 44.8±10.1 44.5±11.0 43.9±11.9 0.080
Right atrium end systolic area (cm2) 18.6±10.9 19.9±9.4 19.1±9.2 20.1±10.0 0.510
Inferior vena cava size (mm) 16.3±29.1 16.9±4.2 17.1±5.8 17.2±5.3 0.017

P-values were calculated by ANOVA.

Korean J Clin Lab Sci 2023;55:269-75 https://doi.org/10.15324/kjcls.2023.55.4.269
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