Foramen magnum cerebrospinal fluid flow characteristics in children with Chiari I malformation before and after craniocervical decompression.

@article{Iskandar2004ForamenMC,
  title={Foramen magnum cerebrospinal fluid flow characteristics in children with Chiari I malformation before and after craniocervical decompression.},
  author={Bermans J. Iskandar and M. F. Quigley and Victor Haughton},
  journal={Journal of neurosurgery},
  year={2004},
  volume={101 2 Suppl},
  pages={
          169-78
        }
}
OBJECT The Chiari I malformation presents significant challenges to clinicians because its pathophysiology is not well understood. In conducting cerebrospinal fluid (CSF) flow studies, investigators have attempted to correlate the clinical severity of these lesions with general flow velocity or bulk flow at the foramen magnum; however, these techniques have not allowed consistent prediction of symptomatology, explanation of the presence of syringomyelia, or the assessment of the hydrodynamic… 
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Idiopathic syringomyelia: phase-contrast MR of cerebrospinal fluid flow dynamics at level of foramen magnum.
TLDR
To measure cerebrospinal fluid flow velocities in the foramen magnum in patients with idiopathic syringomyelia, the authors reviewed the medical records of a neurosurgery specialty clinic to identify patients with IS without evidence of Chiari malformation, tumor, or substantial spine trauma.
The use of magnetic resonance phase-contrast cine in Chiari malformation with syringomyelia.
TLDR
The study highlighted the advantage of CSF flow dynamics information over MR anatomical radiographic improvement in addressing the neurologic and functional recovery and recommended phase-contrast cine MRI use in preoperative analysis and subsequent observational follow-up after surgery.
Magnetic resonance 4D flow analysis of cerebrospinal fluid dynamics in Chiari I malformation with and without syringomyelia
TLDR
Analysis of CSF flow is important in patients with Chiari I malformation and Alterations ofCSF hydrodynamics are most pronounced in Patients with associated syringomyelia, as revealed by 4D-PC flow imaging.
Characterization of Cyclic CSF Flow in the Foramen Magnum and Upper Cervical Spinal Canal with MR Flow Imaging and Computational Fluid Dynamics
TLDR
CSF flow has been shown to exhibit complex patterns in MR images in both healthy subjects and in patients with Chiari I, and CFD displays complex CSF flow patterns similar to those shown in PC MR in patients, which will lead to better measures for distinguishing pathologic flow abnormalities that cause syringomyelia, headaches, and other clinical manifestations in ChiARI I malformations.
Effect of craniovertebral decompression on CSF dynamics in Chiari malformation type I studied with computational fluid dynamics: Laboratory investigation.
TLDR
In computer simulations, craniovertebral surgical defects generally diminished CSF velocities and CSF pressures.
Assessment of Cerebrospinal Fluid Hydrodynamics Using Magnetic Resonance Imaging in Postcraniospinal Surgery Patients
TLDR
PCMRI can effectively evaluate changes in CSF flow noninvasively both pre- and postoperatively, and may have potential role in determining clinical outcome and prognosis of patients undergoing procedures in craniospinal axis.
Characteristics of cerebrospinal fluid flow in Cavalier King Charles Spaniels analyzed using phase velocity cine magnetic resonance imaging.
TLDR
Obstruction to flow at the foramen magnum is common in Cavalier King Charles Spaniels and CSF flow pattern and velocity are related to the presence of syringomyelia, which is unknown in dogs.
CSF Flow through the Upper Cervical Spinal Canal in Chiari I Malformation
TLDR
peak diastolic and systolic CSF velocities are significantly greater below than at the foramen magnum, and age and sex had an effect on peak velocITIES.
Changes in CSF flow after one-stage posterior vertebral column resection in scoliosis patients with syringomyelia and Chiari malformation type I.
TLDR
There were distinct abnormalities of CSF flow at the craniocervical junction in patients with syringomyelia, which could be aggravated by associated severe spinal deformity and improved by correction via posterior vertebral column resection.
Cerebellar and hindbrain motion in Chiari malformation with and without syringomyelia.
TLDR
Cerebellar tonsillar motion may be a potential marker of Chiari malformation type I and may have use in tailoring surgical procedures and the lack of association with syringomyelia suggests that tonsilar motion alone is not the driver of syrinx formation.
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