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Fig. 5A —28-year-old postpartum woman with sudden loss of
consciousness. Sagittal maximum-intensity-projection image of CT venography
(A) and corresponding MR venography image (B) show loss of flow
signal in superior sagittal sinus (arrows) and increased flow through
collaterals (arrowheads, A and short arrows,
B). Note progression of thrombus to involve posterior portion of
superior sagittal sinus on MR venography (B), which was performed 24
hours after CT venography (A).
