Which sequence is essential for detecting DVA
Post-contrast T1 images are necessary as up to 40% of DVA are missed on plain images
The FLAIR images are apparently normal.
The post-contrast images show enhancing cortical venous tributaries in the left parietal cortex converging into a large draining vein (yellow arrows) that further drains into a subependymal vein.
There is no evidence of ischemia or edema seen.