Fig. 7: Schematic image of IR-ALADDIN imaging protocol and ROIs of the dorsal parasagittal mLVs on IR-ALADDIN.

a The positions of nine coronal IR-ALADDIN images are shown as blue stripes. b, c IR-ALADDIN baseline images demonstrate the ROIs of the mLVs (green) and SSS (red). The ROIs of mLVs adjacent to the SSS were segmented based on the distance from the SSS (yellow circle) and PSC on IR-ALADIDN. mLV meningeal lymphatic vessels, PSC percent signal change, ROI region-of-interest.