Article Figures & Data
Figures
- Figure.
A 77-year-old man with a left acute embolic infarction due to severe stenosis of the left proximal internal carotid artery. A, Axial DWI at admission shows multiple areas of diffusion restriction in the left centrum semiovale (arrow). B, MPRAGE image shows isointensity of the left carotid plaque (arrows). This finding indicates a necrotic core without IPH. C, Lateral projection of left carotid angiography shows moderate stenosis in the proximal cervical portion of the left internal carotid artery (arrows). D, Carotid artery angiogram after protected CAS shows complete recanalization without residual stenosis. E, Axial DWI after CAS shows the new embolic lesions in the left frontal lobe (arrows).
Tables
- Table 1:
Baseline data for patients with MR-positive IPH or without IPH after carotid stenosis
MR-Positive IPH (n = 43) No IPH (n = 51) P Mean age, y 74.3 ± 6.5 72.9 ± 6.8 .324 Men, no. (%) 34 (79.1) 31 (60.8) .074 Right side, no. (%) 15 (34.9) 23 (45.1) .400 Symptomatic event, no. (%) 22 (51.2) 19 (37.3) .213 Mean degree of stenosis, % 78.9 ± 12.4 75.9 ± 12.3 .247 Cerebrovascular history, no. (%) Previous stroke 8 (18.6) 17 (33.3) .159 Previous cardiac disease 10 (23.3) 8 (9.8) .433 Cerebrovascular risk factors, no. (%) Hypertension 26 (60.5) 32 (62.7) .835 Diabetes mellitus 22 (51.2) 22 (41.5) .535 Hyperlipidemia 9 (20.9) 8 (15.7) .595 Current smoking 16 (37.2) 20 (39.2) 1.000 MR-Positive IPH, no. (%) (n = 43) No IPH, no. (%) (n = 51) P Hyperperfusion syndrome 3 (7.0) 8 (15.7) .218 Ipsilateral ischemic lesions 9 (20.9) 16 (31.4) .349 Minor stroke 0 0 Major stroke 2 (4.7) 0 .207 MI or death 0 0 Note:—MI indicates myocardial infarction.
- Table 3:
Characteristics of symptomatic and asymptomatic groups in patients with carotid stenosis
Symptomatic (n = 41) Asymptomatic (n = 53) P Mean age, y 74.5 ± 5.5 72.8 ± 7.5 .214 Mean degree of stenosis, % 79.0 ± 13.9 76.0 ± 10.9 .258 MR-positive IPH, no. (%) 22 (53.7) 19 (35.8) .213 Ipsilateral ischemic lesions, no. (%) 17 (41.5) 8 (15.1) .005a Hyperperfusion syndrome, no. (%) 5 (12.2) 6 (11.3) 1.000 Major stroke, no. (%) 1 (2.4) 1 (1.9) .685 ↵a Fisher exact test.
