Table 1.
KDIGO AKI classification.
Fig 1.
Flowchart diagram of inclusion.
Table 2.
Comparison between baseline characteristics of patients with AKI and without AKI.
Table 3.
Study parameters.
Fig 2.
Renal resistive index (mean, 95% CI) for patients without AKI and patients developing AKI (A) renal resistive index (mean, 95% CI) for the different stages of AKI (B).
Fig 3.
ROC curve of RRI for AKI stage 1,2 and 3 (A) ROC curve for AKI stage 2 and 3: RRI and RRI combined with APACHE III and fluid balance.
(A): RRI; AUC 0.662, (95% CI 0.556–0.769), SE 0.055, p = 0.005 (B), green line: RRI; AUC 0.720, (95% CI 0.612–0.831), SE 0.056, p = <0.001 (B), blue line: RRI plus Fluid balance plus APACHE III; AUC 0.825, (95% CI 0.732–0.921), SE 0.048, p = <0.001.
Table 4.
Univariate regression analysis for AKI stage 2 and 3.
Table 5.
Multivariate regression analysis for AKI stage 2 and 3.