CSF and venous blood flow from childhood to adulthood studied by real-time 
phase-contrast MRI

Sahoo, Prativa; Kollmeier, Jost Michael; Wenkel, Nora; Badura, Simon; Gaertner, Jutta; Frahm, Jens; Dreha-Kulaczewski, Steffi

doi:10.1007/s00381-024-06275-1

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CSF and venous blood flow from childhood to adulthood studied by real-time phase-contrast MRI

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Kollmeier, Jost Michael
Research Group Biomedical NMR, Max Planck Institute for Multidisciplinary Sciences, Max Planck Society;

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Frahm, Jens
Research Group Biomedical NMR, Max Planck Institute for Multidisciplinary Sciences, Max Planck Society;

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Citation

Sahoo, P., Kollmeier, J. M., Wenkel, N., Badura, S., Gaertner, J., Frahm, J., et al. (2024). CSF and venous blood flow from childhood to adulthood studied by real-time phase-contrast MRI. Childs Nervous System, 40, 1377-1388. doi:10.1007/s00381-024-06275-1.

Cite as: https://hdl.handle.net/21.11116/0000-000E-66B9-F

Abstract

Purpose
In vivo measurements of CSF and venous flow using real-time phase-contrast (RT-PC) MRI facilitate new insights into the dynamics and physiology of both fluid systems. In clinical practice, however, use of RT-PC MRI is still limited. Because many forms of hydrocephalus manifest in infancy and childhood, it is a prerequisite to investigate normal flow parameters during this period to assess pathologies of CSF circulation. This study aims to establish reference values of CSF and venous flow in healthy subjects using RT-PC MRI and to determine their age dependency.

Methods
RT-PC MRI was performed in 44 healthy volunteers (20 females, age 5–40 years). CSF flow was quantified at the aqueduct (Aqd), cervical (C3) and lumbar (L3) spinal levels. Venous flow measurements comprised epidural veins, internal jugular veins and inferior vena cava. Parameters analyzed were peak velocity, net flow, pulsatility, and area of region of interest (ROI). Statistical tests: linear regression, student's t-test and analysis of variance (ANOVA).

Results
In adults volunteers, no significant changes in flow parameters were observed. In contrast, pediatric subjects exhibited a significant age-dependent decrease of CSF net flow and pulsatility in Aqd, C3 and L3. Several venous flow parameters decreased significantly over age at C3 and changed more variably at L3.

Conclusion
Flow parameters varies depending on anatomical location and age. We established changes of brain and spinal fluid dynamics over an age range from 5–40 years. The application of RT-PC MRI in clinical care may improve our understanding of CSF flow pathology in individual patients.