n = 27
n = 26
|Subjects with new AIL||10||1|
|Incidence of new lesions, %||37.0||4.0|
|Total number of new AIL||83†||1|
|Average number of new AIL per patient‡||3.19 ± 10.33||0.04 ± 0.20|
|Average lesion volume, cm3||0.039 ± 0.08||0.08 ± 0.00|
|Maximum lesion volume, cm3||0.445||0.116|
|Permanent AIL at 30 days||—||1|
Values are counts or mean ± SD.
AIL = acute ischemic lesions; CAS = carotid artery stenting; DW-MRI = diffusion-weighted magnetic resonance imaging; MRI = magnetic resonance imaging.
↵∗ At baseline, 1 patient had significant MRI artifacts from a dental implant that disabled cerebral analysis. DW-MRI in another subject demonstrated middle cerebral artery ischemia whose extent was prohibitive for an analysis of any further lesions in relation to CAS (core lab exclusion). At 48 h, 1 patient did not have an MRI, but did have one at baseline and 30 days. Two additional patients did not agree to the 30-day MRI scan.
↵† One patient had 54 new lesions on the 48-h scan.
↵‡ For 48-h imaging in relation to the pre-CAS (baseline) scan; new lesions at 30 days are in relation to the scan at 48 h after CAS.