Prediction Efficiency of Postoperative Acute Kidney Injury in Acute Stanford Type A Aortic Dissection Patients with Renal Resistive Index and Semiquantitative Color Doppler

Table 4

Comparison of RRI and semiquantitative color Doppler grade between groups with PAKI and without PAKI.

	All subjects ()	Subjects without PAKI ()	Subjects with PAKI ()	value
RRI
	0.75 ± 0.08	0.72 ± 0.06	0.79 ± 0.09	0.002
Semiquantitative color Doppler grade
0	3 (4.4%)	0 (0%)	3 (14.3%)
1	6 (8.9%)	1 (2.2%)	5 (23.8%)
2	27 (40.3%)	20 (29.8%)	7 (33.3%)
3	31 (46.2%)	25 (54.3%)	6 (28.6%)
				0.007