Table 4. Cutoff values, sensitivities, specificities and accuracy of RRI and serum creatinine in predicting the need for renal replacement therapy based on the ROC curve.

RRI: Renal resistive index

Statistical parameter	RRI	Sr creatinine
Cutoff value	0.73	2.33 mg/dl
Sensitivity	35.1%	86.0%
Specificity	80.4%	57.7%
Accuracy	69.1%	89.7%