JUL 22, 2026 · JOURNAL ARTICLE
A comparative evaluation of multiple enlarged perivascular space segmentation tools.
Magnetic Resonance Imaging
A single-centre algorithm development study with internal validation on 35 manual tracings and external validation on 18 scans, showing moderate segmentation accuracy (Dice 0.61–0.72) but acknowledged scanner-dependent variability that limits generalisability.
Reported
Dice score (white matter)0.61 ± 0.16
Dice score (basal ganglia)0.72 ± 0.08
Internal validation sample (manua…35