Images obtained in a 76-year-old woman with a symptomatic stenosis of the carotid artery.
A, Left anterior oblique angiogram shows a 79% stenosis of the left ICA.
B, Left anterior oblique angiogram shows the result after stent implantation.
C, Lateral angiogram shows the intracranial circulation of the treated side after a procedure with a nonocclusive embolus in a branch of the MCA (arrow). The patient was symptomatic during the whole procedure. An angiogram of the intracranial circulation obtained after the infusion of 100,000 IU of urokinase into the ICA demonstrated complete disappearance of the embolus (not shown).
D, Postprocedural axial diffusion-weighted MR image (6000/103/1) shows eight new ipsilateral lesions (5–10 mm) in the cortical territory of the MCA (arrow).