Imaging of the perivascular spaces (PVS) is of growing interest, especially due to its involvement in brain clearance and blood-brain barrier exchange [1]–[3]. PVS mapping is often limited to macroscopic PVS (>1mm), which limits the study of subtle morphological PVS alteration that is expected to occur in submillimeter resolution. Here we show the advantage of ultra-high field imaging for detailed quantification of PVS in vivoand noninvasively.
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