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TABLE 2: Quantitative results in patients
Patient Degree of Stenosis (%) ATD (msec)
CS CS, After Surgery MCA MCA, After Surgery
11 30 40 10 
12 30 20 −100 
13 30 100 110 
14 30 40 10 
15 30 30 −30 
16 50 40 40 
17 50 80 10 30 20
18 50 140 70 
19 50 100 80 20 0
20 60 70 50 
11–20^* 66 ± 39^† 21 ± 57^‡ 
21 70 100 90 
22 70 60 60 
23 70 160 50 
24 75 50 0 
25 80 300 160 
26 80 120 0 180 20
27 80 350 70 160 30
28 80 50 20 20 40
29 85 140 −40 50 −60
30 85 600 60 320 10
31 85 50 110 
32 85 380 ^§ 320 10
33 90 200 100 
34 90 90 180 
35 90 170 280 
36 90 510 800 
37 90 350 180 
21–37^* 216 ± 170^† 180 ± 187^‡ 
38 95 ^§ 70 
39 95 ^§ 0 130 4
40 95 220 40 80 20
38–40^* 220 93 ± 32 
* Data are the mean or the mean ± standard deviation.
† P < .05.
‡ P < .05.
§ No signal.

Patient	Degree of Stenosis (%)	ATD (msec)
Patient	Degree of Stenosis (%)	CS	CS, After Surgery	MCA	MCA, After Surgery
11	30	40		10
12	30	20		−100
13	30	100		110
14	30	40		10
15	30	30		−30
16	50	40		40
17	50	80	10	30	20
18	50	140		70
19	50	100	80	20	0
20	60	70		50
11–20^*		66 ± 39^†		21 ± 57^‡
21	70	100		90
22	70	60		60
23	70	160		50
24	75	50		0
25	80	300		160
26	80	120	0	180	20
27	80	350	70	160	30
28	80	50	20	20	40
29	85	140	−40	50	−60
30	85	600	60	320	10
31	85	50		110
32	85	380	^§	320	10
33	90	200		100
34	90	90		180
35	90	170		280
36	90	510	800
37	90	350		180
21–37^*		216 ± 170^†		180 ± 187^‡
38	95	^§		70
39	95	^§	0	130	4
40	95	220	40	80	20
38–40^*		220		93 ± 32