Fig. 1From: Non-invasive measurement of choroid plexus apparent blood flow with arterial spin labelingChoroid plexus regions segmented based on T1-weighted images. The choroid plexus region was segmented manually in the lateral ventricle on the high-resolution T1 weighted images (a–c). The ASL images were registered to the gray matter of the T1-weighted images (d, e)Back to article page