Vascular Hydraulics Associated with Idiopathic and Secondary Intracranial Hypertension
Grant A. Batemana
a From the Department of Medical Imaging, John Hunter Hospital, Newcastle, Australia
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FIG 1. Arterial and SSS waveforms in a healthy subject. mls indicates milliliters.
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FIG 2. Arterial and SSS waveforms in a patient with SIH. Note the flat venous flow. mls indicates milliliters.
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FIG 3. Focal thrombus.
A, MR venogram (30/5/1 [TR/TE/NEX]) shows acute thrombosis of the transverse sinus. Arrow indicates area of signal intensity loss.
B, Sagittal reconstruction shows nonocclusive thrombus (arrow) just distal to the vein of Labbé.
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FIG 4. Oblique view of the venous phase of cerebral angiography shows bilateral transverse sinus stenoses (arrows).
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FIG 5. Patient with IIH.
A, MR venogram (30/5/1 [TR/TE/NEX]) shows a dilated ophthalmic vein (thin arrow) leading to distended facial veins (thick arrow).
B, MR venogram (30/5/1) shows distended veins of the right side of the neck.
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AJNR - American Journal of Neuroradiology