2026-10-13T13:31:17Z https://www.scidb.cn/oai

10.57760/sciencedb.28323 2026-03-09T00:27:30Z

2026-03-09 The Combined Application Value of Renal Resistance Index and Renal Venous Impedance Index in Predicting Acute Kidney Injury After Cardiac Surgery doi:10.57760/sciencedb.28323 en Statistical analyses were performed using SPSS software (version 25.0, IBM Corp, Armonk, NY, USA).Normally distributed continuous data were expressed as mean ± standard deviation. Intergroup mean comparisons employed the independent samples t-test. For non-normally distributed quantitative data, median and interquartile range were used, assessed via the Mann-Whitney U test. Categorical data were presented as percentages (%), evaluated using the chi-square test. Logistic regression analysed the correlation between RRI and VII with AKI occurrence. Predictive performance was evaluated using ROC curves, p <0.05 was considered statistically significant. Renal resistance index; venous impedance index; acute kidney injury; cardiac surgery; color Doppler ultrasound 刘雨萌 PUBLIC https://opendatacommons.org/licenses/odbl/1-0/ dataset Science Data Bank