Table 3:

Pre-CAS data compared with post-CAS data 30 days later and P values; early post-CAS data compared with post-CAS data, at 30 days and P value (statistical significance)

Doppler values	Pre-CAS	Early Post-CAS	Post-CAS, at 30 days
iMCA-MFV	50.3 ± 17.0	63.0 ± 21.7	52.8 ± 15.6**
iMCA-PI	0.84 ± 0.19**	1.02 ± 0.22	1.12 ± 0.23**
iCVR	26.0 ± 17.3**		37.0 ± 22.0
cMCA-MFV	51.5 ± 17.4	54.1 ± 16.9	49.6 ± 16.9*
cMCA-PI	0.98 ± 0.23	1.03 ± 0.23	1.02 ± 0.26
cCVR	30.1 ± 18.2		33.5 ± 17.4

Note:—CAS indicates carotid angioplasty stent placement; i, ipsilateral; MCA, middle cerebral artery; MFV, mean flow velocity; PI, pulsatility index; CVR, cerebrovascular reserve; c, contralateral.

^*P < .05.

^**P < .01.