ArticleFluids and barriers of the CNS2025
Cerebrospinal fluid dynamics and subarachnoid space occlusion following traumatic spinal cord injury in the pig: an investigation using magnetic resonance imaging.
Article in Fluids and barriers of the CNS, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Cardiorespiratory modulation of cerebrospinal fluid flow in the presence of spinal subarachnoid space obstruction.Fluids and barriers of the CNS · 2026Article
- Article
- Cerebrospinal fluid pressure dynamics as a biomechanical marker for quantification of spinal cord compression: Conceptual framework and systematic review of clinical trials.Brain & spine · 2025Review
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Authors and funding
10 authors.
Funding
Abstract
backgroundTraumatic spinal cord injury (SCI) causes spinal cord swelling and occlusion of the subarachnoid space (SAS). SAS occlusion can change pulsatile cerebrospinal fluid (CSF) dynamics, which could have acute clinical management implications. This study aimed to characterise SAS occlusion and investigate CSF dynamics over 14 days post-SCI in the pig.
methodsA thoracic contusion SCI was induced in female domestic pigs (22-29 kg) via a weight drop apparatus (N = 5, 10 cm; N = 5, 20 cm). Magnetic resonance imaging (MRI) was performed pre-SCI and 3, 7 and 14 days post-SCI. SAS occlusion length (cranial-caudal), and injury site SAS area (cross-sectional), were measured on T2-weighted MRI. CSF dynamics, specifically peak cranial/caudal mean velocity (cm/s), and the corresponding time to peak (% of cardiac cycle), were measured on cardiac gated, axial phase-contrast MRI obtained at C2/C3, T8/T9, T11/T12 and L1/L2. Linear-mixed effects models, with a significance level of α = 0.05, were developed to assess the effect of: (1) injury group and time point on SAS occlusion measures; and (2), time point and spinal level, adjusted by injury group, on CSF dynamics.
resultsFor both injury groups, SAS occlusion length decreased from 3 to 7 days post-SCI, and 7 to 14 days post-SCI. The cross-sectional SAS area decreased after SCI, and increased to 14 days post-SCI, in both groups. At all spinal levels, peak cranial/caudal mean velocity and the time to peak caudal mean velocity decreased at day 3 post-SCI. From 3 to 14 days post-SCI, peak caudal mean velocity and the time to peak caudal mean velocity increased towards baseline values, at all spinal levels.
conclusionsSpinal-level specific changes to CSF dynamics, with concurrent changes to SAS occlusion, occurred after SCI in the pig, suggesting that CSF pulsatility and craniospinal compliance were altered in the sub-acute post-traumatic period. These results suggest that PC-MRI derived CSF dynamics may provide a non-invasive method to investigate functional alterations to the spinal intrathecal space following traumatic SCI.
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