scholarly journals The Impact of Spinal Cord Nerve Roots and Denticulate Ligaments on Cerebrospinal Fluid Dynamics in the Cervical Spine

PLoS ONE ◽  
2014 ◽  
Vol 9 (4) ◽  
pp. e91888 ◽  
Author(s):  
Soroush Heidari Pahlavian ◽  
Theresia Yiallourou ◽  
R. Shane Tubbs ◽  
Alexander C. Bunck ◽  
Francis Loth ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Spinal Cord ◽  
Cerebrospinal Fluid ◽  
Cervical Spine ◽  
Cerebrospinal Fluid Dynamics ◽  
Nerve Roots ◽  
The Impact

scholarly journals Anthropomorphic Model of Intrathecal Cerebrospinal Fluid Dynamics Within the Spinal Subarachnoid Space: Spinal Cord Nerve Roots Increase Steady-Streaming

2018 ◽  
Vol 140 (8) ◽  
Author(s):  
Mohammadreza Khani ◽  
Lucas R. Sass ◽  
Tao Xing ◽  
M. Keith Sharp ◽  
Olivier Balédent ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Spinal Cord ◽  
Cerebrospinal Fluid ◽  
Cfd Model ◽  
Csf Flow ◽  
Nerve Roots ◽  
Csf Dynamics ◽  
Steady Streaming ◽  
Spinal Subarachnoid Space ◽  
The Impact

Cerebrospinal fluid (CSF) dynamics are thought to play a vital role in central nervous system (CNS) physiology. The objective of this study was to investigate the impact of spinal cord (SC) nerve roots (NR) on CSF dynamics. A subject-specific computational fluid dynamics (CFD) model of the complete spinal subarachnoid space (SSS) with and without anatomically realistic NR and nonuniform moving dura wall deformation was constructed. This CFD model allowed detailed investigation of the impact of NR on CSF velocities that is not possible in vivo using magnetic resonance imaging (MRI) or other noninvasive imaging methods. Results showed that NR altered CSF dynamics in terms of velocity field, steady-streaming, and vortical structures. Vortices occurred in the cervical spine around NR during CSF flow reversal. The magnitude of steady-streaming CSF flow increased with NR, in particular within the cervical spine. This increase was located axially upstream and downstream of NR due to the interface of adjacent vortices that formed around NR.

Cerebrospinal Fluid Dynamics in the Cervical Spine: Importance of Fine Anatomical Structures

2013 ◽  
Author(s):  
S. H. Pahlavian ◽  
T. I. Yiallourou ◽  
R. S. Tubbs ◽  
A. Bunck ◽  
M. Goodin ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Cerebrospinal Fluid ◽  
Cervical Spine ◽  
Cfd Simulations ◽  
Nerve Roots ◽  
Csf Dynamics ◽  
Anatomical Structures ◽  
Spinal Subarachnoid Space ◽  
Computational Fluid Dynamics Cfd ◽  
Fine Structures

Fine anatomical structures, including nerve roots and denticulate ligaments, can significantly influence cerebrospinal fluid (CSF) dynamics inside the spinal subarachnoid space (SSS). In this study, we completed computational fluid dynamics (CFD) simulations based on subject specific geometries of the cervical spine with and without idealized fine structures (nerve roots and denticulate ligaments, NRDL). The results show that NRDL had a significant impact on CSF dynamics in terms of velocity distribution, flow streamlines, bidirectional nature of the flow and the pressure drop.

scholarly journals Relationship between cerebrospinal fluid dynamics and reversible spinal cord ischemia during experimental thoracic aortic occlusion

1988 ◽  
Vol 95 (5) ◽  
pp. 920-923 ◽  
Author(s):  
Himansu K. Dasmahapatra ◽  
John G. Coles ◽  
Gregory J. Wilson ◽  
Henriette Sherret ◽  
Sharon Adler ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Spinal Cord ◽  
Cerebrospinal Fluid ◽  
Spinal Cord Ischemia ◽  
Aortic Occlusion ◽  
Cerebrospinal Fluid Dynamics

Influence of degenerative changes of cervical spine on cerebrospinal fluid dynamics

2006 ◽  
Vol 39 ◽  
pp. S367
Author(s):  
A. Kaczmarská ◽  
Z. Štěpánik ◽  
P. Vaněk ◽  
S. Otáhal ◽  
J. Otáhal
Keyword(s):  
Fluid Dynamics ◽  
Cerebrospinal Fluid ◽  
Cervical Spine ◽  
Degenerative Changes ◽  
Cerebrospinal Fluid Dynamics

scholarly journals Accuracy of 4D Flow Measurement of Cerebrospinal Fluid Dynamics in the Cervical Spine: An In Vitro Verification Against Numerical Simulation

2016 ◽  
Vol 44 (11) ◽  
pp. 3202-3214 ◽  
Author(s):  
Soroush Heidari Pahlavian ◽  
Alexander C. Bunck ◽  
Suraj Thyagaraj ◽  
Daniel Giese ◽  
Francis Loth ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Numerical Simulation ◽  
Cerebrospinal Fluid ◽  
Cervical Spine ◽  
Flow Measurement ◽  
Cerebrospinal Fluid Dynamics ◽  
4D Flow

Spinal cerebrospinal fluid dynamics

2019 ◽  
pp. 761-768
Author(s):  
Graham Flint
Keyword(s):  
Fluid Dynamics ◽  
Spinal Cord ◽  
Cerebrospinal Fluid ◽  
Spinal Canal ◽  
Daily Activities ◽  
Cerebrospinal Fluid Dynamics ◽  
Free Communication ◽  
Csf Hydrodynamics ◽  
Basal Cisterns ◽  
Chiari Malformations

Cerebrospinal fluid (CSF) within the spinal canal is far from a stagnant column of liquid, simply bathing the spinal cord, but is constantly being subjected to waves of energy, produced by both the cardiac and the respiratory cycles. Moreover, the spinal subarachnoid channels are normally in free communication with the intracranial basal cisterns and volume exchanges take place between these two compartments, during normal daily activities. A variety of pathological processes can alter CSF hydrodynamics, leading to the development of several conditions. These include Chiari malformations and syringomyelia, as well as extra-axial collections of CSF. They are best regarded as disorders of CSF circulation, rather than as isolated spinal pathologies.

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