Effects of Carotid or Vertebrobasilar Stent Placement on Cerebral Perfusion and Cognition
Roham Moftakharb,
Aquilla S. Turka,b,
David B. Niemanna,b,
Sayed Hussainc,
Sharad Rajpalb,
Thomas Cookd,
Madeleine Geraghtyc,
Beverly Aagaard-Kienitza,b,
Patrick A. Turskia,b and
George C. Newmana,b,c
a Department of Radiology, University of Wisconsin Hospital and Clinics, Madison, WI
b Department of Neurosurgery, University of Wisconsin Hospital and Clinics, Madison, WI
c Department of Neurology, University of Wisconsin Hospital and Clinics, Madison, WI
d Department of Biostatistics, University of Wisconsin Hospital and Clinics, Madison, WI
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FIG 1. Sample patient with cervical internal carotid artery stenosis.
A, CTA 2D reformation showing the innominate, right common, and internal carotid arteries with a significant stenosis in the proximal ICA.
B, DSA showing right ICA stenosis.
C, Prestent CT perfusion demonstrating abnormal prolongation of mean transit time (MTT; upper right), decreased cerebral blood flow (CBF; lower left), and normal cerebral blood volume (CBV; bottom right).
D, DSA after stent placement.
E, CTA 2D multiplanar reformation with orthogonal projections through the stent.
F, CT perfusion after stent placement demonstrates normalization of MTT (upper right), CBF (bottom left), and CBV (bottom right).
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