Posterior fossa morphometry in symptomatic pediatric and adult Chiari I malformation

@article{Furtado2009PosteriorFM,
  title={Posterior fossa morphometry in symptomatic pediatric and adult Chiari I malformation},
  author={S. Furtado and K. Reddy and A. Hegde},
  journal={Journal of Clinical Neuroscience},
  year={2009},
  volume={16},
  pages={1449-1454}
}
The linear dimensions and volume of the posterior fossa, and the length of the supra-occiput and the clivus in children with Chiari I malformations (CMI) were studied. A statistical relationship between patient demographics, radiological features, posterior fossa and occipital bone morphometry in the study and control groups was investigated. The results of 21 pediatric patients was compared to those of a matched control group. The posterior fossa volume (PFV) of an adult CMI group was also… Expand
Posterior cranial fossa morphometry in symptomatic adult Chiari I malformation patients: Comparative clinical and anatomical study
TLDR
The morphometric data suggest that, in CMI, a hypoplastic occipital bone, possibly due to the paraxial mesodermal defect of the parachordal plate, causes overcrowding in PCF, which contains the normally developed neural structures. Expand
Morphometric Analysis of the Posterior Cranial Fossa in Chiari Type I Malformation in Adults.
TLDR
It is illustrated that the bony components of the posterior cranial fossa is underdeveloped in CMI, which supports the current literature stating that CMI is the result of underdeveloped occipital somites and the paraxial mesoderm. Expand
Morphometric analysis of posterior fossa and craniovertebral junction in subtypes of Chiari malformation
TLDR
It is concluded that etiological differences lead to morphological differences in Chiari malformations and CM-2 has remarkable differences from both other subtypes and the control group. Expand
Comparison of posterior fossa volumes and clinical outcomes after decompression of Chiari malformation Type I.
TLDR
A greater increase in the postoperative PCF volume, and specifically an increase inThe cisterna magna volume, was associated with a greater likelihood of clinical improvements in headache and tonsillar descent in patients with CM-I. Expand
Chiari type I malformation with high foramen magnum anomaly.
A 14-year-old male with a neck pain and hypoesthesia in the upper extremities was diagnosed with Chiari type I malformation (CMI) and syringomyelia. The posterior part of the occipital bone wasExpand
Computed tomographic study of posterior cranial fossa, foramen magnum, and its surgical implications in Chiari malformations
TLDR
The normal dimensions of the posterior fossa and FM were less in females than males and were useful to radiologists and neurosurgeons to better their diagnostic inferences, as well as to determine the proper treatment options in Chiari malformation type I (CMI) and other posterior Fossa anomalies. Expand
Posterior odontoid process angulation in pediatric Chiari I malformation: an MRI morphometric external validation study.
TLDR
The authors found that the population at their center was characterized by posterior angulation of the odontoid process in 81% of cases, similar to findings by Tubbs et al. (84%). Expand
The Intracranial and Posterior Cranial Fossa Volumes and Volume Fractions in Children: A Stereological Study
TLDR
It is revealed that point counting method can produce accurate volume estimations and is effective in determining volum e estimation of intracranial cavity and posterior cranial fossa volume. Expand
The role of the posterior fossa in developing Chiari I malformation in children with craniosynostosis syndromes.
  • B. Rijken, M. Lequin, +5 authors I. Mathijssen
  • Medicine
  • Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery
  • 2015
TLDR
Volumes and CV/PFV ratio cannot predict which craniosynostosis patients are more prone to developing CMI, and treatment should focus on the skull vault and other contributing factors to increased ICP, including OSA and venous hypertension. Expand
Correlation of Functional Outcome and Natural History With Clinicoradiological Factors in Surgically Managed Pediatric Chiari I Malformation
TLDR
More than half the pediatric patients with Chiari I malformation improve after surgery, and the age at presentation, duration and type of symptoms, cranial and foramen magnum morphometry, and syrinx-related changes have no bearing on outcome at short-term follow-up. Expand
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TLDR
Whether the volume of the posterior fossa in children suffering from Chiari malformation Type I (CM-I) is smaller than normal, as has been suggested previously, is investigated and it is indicated that the two subgroups may represent different phenotypic expression or even a different pathogenesis. Expand
Posterior fossa dimension and volume estimates in pediatric patients with Chiari I malformations
TLDR
Mean PFV values were found to be smaller in pediatric CMI patients than control patients; this complements earlier studies in adults and supports the present theory concerning the pathophysiological mechanism of CMI. Expand
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The results suggest that in adult-type Chiari malformation an underdeveloped occipital bone, possibly due to underdevelopment of the occipITAL somite originating from the paraxial mesoderm, induces overcrowding in the posterior cranial fossa, which contains the normally developed hindbrain. Expand
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Children with CM-I have abnormal geometrical measurements of their entire skull base, not only the posterior fossa, irrespective of presence of syringomyelia, which may indicate a mesodermal defect as a possible cause of the malformation. Expand
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TLDR
Preliminary morphologic data suggests that a subgroup of patients exists with tonsillar descent less than 3 mm below the foramen magnum but with congenitally hypoplastic posterior fossa causing symptomatology consistent with CMI. Expand
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TLDR
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IntroductionCephalocranial disproportion was said to be responsible for Chiari I malformation after ventriculoperitoneal shunt. We aimed to evaluate if the volumetric characteristics of Chiari IExpand
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All patients with Chiari I malformation and an associated cervical syrinx had absent cine flow at the craniovertebral junction, and this finding was statistically significant. Expand
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