Article Figures & Data
Figures
- Fig. 1.
A, Number of new diffusion-weighted imaging (DWI) lesions after filter-protected carotid stent placement and median lesion load of DWI positive cases in different vascular territories.
B, Individual numbers and vascular territory of DWI lesions. Note case 16, with severe aortic arch atherosclerosis exceeding the usual number of 1 to 4 lesions per positive case.
- Fig. 2.
Range of expression of diffusion-weighted imaging (DWI) lesions after filter-protected internal carotid artery (ICA) stent placement.
A and B, DWI the day before and the second day after stent placement of a right ICA stenosis. Upper limit of a small cortical infarct in the right middle cerebral artery (MCA) territory is visible on both images (arrow). Typical appearace of 2 new punctate lesions in the right parietal lobe (B).
C–E, Poststent DWI after endovascular treatment of a right ICA stenosis in the patient who showed the maximal number and extension of new lesions in this study. New hyperintensities are detected in the ipsilateral ICA as well as in the contralateral ICA (C and D) and vertebrobasilar territory (E). Note a pre-existing subacute infarct in the right MCA territory (arrowhead, D).
- Fig. 3.
Diagrams showing potential influence factors for the occurrence of diffusion-weighted imaging (DWI) lesions after carotid stent placement.
A, Dependence between different age groups and DWI lesions was statistically significant (P = .01).
B, Trend toward lower rates of lesions with increasing experience of operators (n.s.).
C, Trend toward more DWI lesions with the use of segmented nitinol stents (Acculink) compared with Wallstents (n.s.).
Tables
Filter types used in this study
Nitinol Filaments + Synthetic Membrane Material Design Concentric Eccentric Nitinol Basket Type Accunet AngioGuard EmboShield EPI FilterWire EX FilterWire EZ Spider Manufacturer Guidant Cordis Abbott Boston Scientific Boston Scientific ev3 Porus size 115 μm 100 μm 150 μm 80 μm 110 μm 110 μm Crossing profile 3.2F 3.2F 3.7F 3.9F 3.2F 3.2F Number used in this study 2 1 5 17 16 9
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