[Visualization of the venous vessels in cerebral arteriograms in various types of strokes]

The authors analysed 1468 internal carotid angiograms including 945 performed in patients with strokes and 523 with brain tumours. Three phases were evaluated: arterial, middle and venous, directing attention to brain venous system filling in the arterial phase. Carotid arteriography carried out within 14 days after stroke onset visualizes early filling of the veins and this sign may be helpful in localizing the site of brain damage.