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Morphometric analysis of foramen magnum dimensions and intracranial volume in pediatric Chiari I malformation.
Acta Neurochir (Wien). 2010 Feb; 152(2):221-7; discussion 227.AN

Abstract

PURPOSE

Foramen magnum dimensions and intracranial volume in Chiari I malformations in children were studied, and the statistical relationship between patient demographics, radiological features and foramen magnum morphometry was investigated.

METHODS

Linear measurements were used to calculate the intracranial volume using preoperative magnetic resonance images and computed tomogram images. The area of the foramen magnum was obtained independently using computer imaging software and a regression formula. The result of 21 pediatric patients was compared with a matched control group.

RESULTS

The area of the foramen magnum was within the range of the expected value deduced using a formula based on the intracranial volume. There was no statistical difference in the area and linear dimensions of the foramen magnum in the study and control groups. Six patients (28%) had a foramen magnum in close proximity to a spherical shape.

CONCLUSION

The authors provide a simple, accurate and reproducible method of estimating foramen magnum area in the pediatric Chiari I group. The irregular shape of the foramen magnum is accentuated by developmental bony and soft tissue anomalies at the cranio-vertebral junction in Chiari malformation. Consequently, an individualized cross-sectional assessment of the foramen magnum in relation to the hindbrain tissue in the same plane is required to study the initiation and propagation of the Chiari I symptomatology.

Authors+Show Affiliations

Department of Neurosurgery, Sri Satya Sai Institute of Higher Medical Sciences, EPIP Area, Whitefield, Bangalore 560066 Karnataka, India. sunilvf@gmail.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19672553

Citation

Furtado, Sunil V., et al. "Morphometric Analysis of Foramen Magnum Dimensions and Intracranial Volume in Pediatric Chiari I Malformation." Acta Neurochirurgica, vol. 152, no. 2, 2010, pp. 221-7; discussion 227.
Furtado SV, Thakre DJ, Venkatesh PK, et al. Morphometric analysis of foramen magnum dimensions and intracranial volume in pediatric Chiari I malformation. Acta Neurochir (Wien). 2010;152(2):221-7; discussion 227.
Furtado, S. V., Thakre, D. J., Venkatesh, P. K., Reddy, K., & Hegde, A. S. (2010). Morphometric analysis of foramen magnum dimensions and intracranial volume in pediatric Chiari I malformation. Acta Neurochirurgica, 152(2), 221-7; discussion 227. https://doi.org/10.1007/s00701-009-0480-5
Furtado SV, et al. Morphometric Analysis of Foramen Magnum Dimensions and Intracranial Volume in Pediatric Chiari I Malformation. Acta Neurochir (Wien). 2010;152(2):221-7; discussion 227. PubMed PMID: 19672553.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Morphometric analysis of foramen magnum dimensions and intracranial volume in pediatric Chiari I malformation. AU - Furtado,Sunil V, AU - Thakre,Darpan J, AU - Venkatesh,Prasanna K, AU - Reddy,Kalyan, AU - Hegde,A S, Y1 - 2009/08/12/ PY - 2009/04/23/received PY - 2009/07/25/accepted PY - 2009/8/13/entrez PY - 2009/8/13/pubmed PY - 2010/6/9/medline SP - 221-7; discussion 227 JF - Acta neurochirurgica JO - Acta Neurochir (Wien) VL - 152 IS - 2 N2 - PURPOSE: Foramen magnum dimensions and intracranial volume in Chiari I malformations in children were studied, and the statistical relationship between patient demographics, radiological features and foramen magnum morphometry was investigated. METHODS: Linear measurements were used to calculate the intracranial volume using preoperative magnetic resonance images and computed tomogram images. The area of the foramen magnum was obtained independently using computer imaging software and a regression formula. The result of 21 pediatric patients was compared with a matched control group. RESULTS: The area of the foramen magnum was within the range of the expected value deduced using a formula based on the intracranial volume. There was no statistical difference in the area and linear dimensions of the foramen magnum in the study and control groups. Six patients (28%) had a foramen magnum in close proximity to a spherical shape. CONCLUSION: The authors provide a simple, accurate and reproducible method of estimating foramen magnum area in the pediatric Chiari I group. The irregular shape of the foramen magnum is accentuated by developmental bony and soft tissue anomalies at the cranio-vertebral junction in Chiari malformation. Consequently, an individualized cross-sectional assessment of the foramen magnum in relation to the hindbrain tissue in the same plane is required to study the initiation and propagation of the Chiari I symptomatology. SN - 0942-0940 UR - https://www.unboundmedicine.com/medline/citation/19672553/Morphometric_analysis_of_foramen_magnum_dimensions_and_intracranial_volume_in_pediatric_Chiari_I_malformation_ L2 - https://dx.doi.org/10.1007/s00701-009-0480-5 DB - PRIME DP - Unbound Medicine ER -