Article Figures & Data
Figures
- fig 1.
Patient 4: 50-year-old woman undergoing left internal carotid balloon test occlusion in whom neurologic symptoms developed 27 minutes into the procedure.
A, Perfusion map shows delayed perfusion in the left hemisphere and no response in the right frontal borderzone.
B, Axial turboFLAIR image (9000/110, TI = 2500) is normal.
C, Contrast-enhanced axial turboFLAIR image shows curvilinear regions of hyperintensity in the subarachnoid spaces or pial surface on the left frontal region.
D, Contrast-enhanced T1-weighted fat-saturation image (710/17) shows areas of short T1 relaxation in the corresponding regions, but more subtle than on the turboFLAIR image.
- fig 2.
Patient 8: 29-year-old woman undergoing right ICA balloon test occlusion who was asymptomatic throughout the procedure.
A, Perfusion map shows delayed perfusion in the right hemisphere.
B and C, Contrast-enhanced turboFLAIR images (9000/110, TI = 2500) show areas of hyperintensity in the right parietooccipital and right frontal regions, in the right middle cerebral artery—posterior cerebral artery and anterior cerebral artery—middle cerebral artery borderzone distributions of the right hemisphere.
Tables
TABLE 1:Patient demographics and indications for balloon test occlusion
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