[Retracted] Evaluation of Ischemic Penumbra in Stroke Patients Based on Deep Learning and Multimodal CT

Table 2

NIHSS scores at different time periods for different lateral circulation classifications .

NIHSS
Collateral classification	n
		Baseline	1 day	1 week	1 month	value
Level 0	5	16.9  7.6	16.1  7.2	15.9  7.1	15.2  5.1	0.673
Level 1	6	16.1  6.6	14.9  7.3	12.1  5.7	12.3  4.5	0.212
Level 2	16	13.9  7.1	11.6  4.8	11.2  5.1	9.6  5.3	0.091
Level 3	13	11.9  6.3	7.8  4.1	7.1  5.3	5.2  3.6	0.032
Level 4	7	10.2  5.1	5.2  5.1	4.6  3.7	3.2  2.1	0.001