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Perivascular Spaces Segmentation in Brain MRI Using Optimal 3D Filtering
Lucia Ballerini, Ruggiero Lovreglio, Maria del C. Valdés Hernández and 4 more
Scientific Reports · 2018 · CC BY
doi:10.1038/s41598-018-19781-5
Abstract
Perivascular Spaces (PVS) are a feature of Small Vessel Disease (SVD), and are an important part of the brain’s circulation and glymphatic drainage system. Quantitative analysis of PVS on Magnetic Resonance Images (MRI) is important for understanding their relationship with neurological diseases. In this work, we propose a segmentation technique based on the 3D Frangi filtering for extraction of PVS from MRI. We used ordered logit models and visual rating scales as alternative ground truth for Frangi filter parameter optimization and evaluation. We optimized and validated our proposed models on two independent cohorts, a dementia sample (N = 20) and patients who previously had mild to moderate stroke (N = 48). Results demonstrate the robustness and generalisability of our segmentation method. Segmentation-based PVS burden estimates correlated well with neuroradiological assessments (Spearman’s ρ = 0.74, p < 0.001), supporting the potential of our proposed method.
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Cited by papers we hold 3
- Cerebral small vessel disease burden and longitudinal cognitive decline from age 73 to 82: the Lothian Birth Cohort 1936 · 2021Not checked
- Perivascular spaces and brain waste clearance systems: relevance for neurodegenerative and cerebrovascular pathology · 2021No notice
- Image processing approaches to enhance perivascular space visibility and quantification using MRI · 2019No notice
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