Statistical Analysis
All data were statistically analyzed using SPSS version 27.0 software.
Continuous variables are presented as mean ± standard deviation (SD),
while categorical variables are expressed as frequencies (%). For
normally distributed continuous variables with homogeneity of variance,
one-way analysis of variance (ANOVA) was conducted for comparison among
multiple groups, with post hoc pairwise comparisons performed using the
LSD method. Non-parametric tests were employed for variables with
unequal variances. Group comparisons for categorical variables were
assessed using the chi-square test.When comparing RVFWLS and RVGLS,
absolute values were utilized to negate the influence of negative values
on magnitude. The reproducibility of right ventricular function
parameters was evaluated in a randomly selected subset of 30 patients
using the intraclass correlation coefficient (ICC). Statistical
significance was set at a two-tailed of P < 0.05.