MR and Clinical Follow-Up of Diffusion-Weighted Cerebral Lesions after Carotid Artery Stenting
Elke A.M. Hautha,
Christian Jansena,
Robert Dreschera,
Michael Schwartzb,
Michael Forstingc,
Horst J. Jaegera and
Klaus D. Mathiasa
a Department of Radiology, Klinikum Dormund, Dormund, Federal Republic of Germany
b Department of Neurology, Klinikum Dormund, Dormund, Federal Republic of Germany
c Department of Radiology and Interventional Radiology, University Hospital Essen, Essen, Federal Republic of Germany

View larger version (114K):
[in a new window]
|
FIG 1. Symptomatic stenosis of the right CA in a 62-year-old man.
A, Preprocedural DW MR image (6000/103/1) shows a preprocedural lesion in the cortical territory of the MCA (white arrow).
B, Preprocedural T2-weighted MR image (5700/119/1) shows no lesions in the cerebellar hemisphere in C.
C, Postprocedural DW MR image (6000/103/1) shows the preprocedural lesion in the cortical territory of the MCA and a new ipsilateral lesion (<10 mm) in the right cerebellar hemisphere (white arrow).
D, Postprocedural T2-weighted MR image (5700/119/1) obtained at a corresponding level shows the lesion in the cerebellar hemisphere in C (white arrow).
E, T2-weighted MR image 6 months after the procedures shows the persistent area of hyperintensity (white arrow).
| |

View larger version (102K):
[in a new window]
|
FIG 2. Stent implantation of the left CA in a 64-year-old woman.
A, Postprocedural T2-weighted image shows no lesion.
B, T2-weighted MR image 6 months after the procedures shows a new area of hyperintensitiy in the territory of the contralateral MCA (white arrow).
| |