The accuracy of linear indices of ventricular volume in pediatric hydrocephalus: technical note.
Assessment of ventricular size is essential in clinical management of hydrocephalus and other neurological disorders. At present, ventricular size is assessed using indices derived from the dimensions of the ventricles rather than the actual volumes. In a population of 22 children with congenital hydrocephalus and 22 controls, the authors evaluated the relationship between ventricular volume and linear indices in common use, such as the frontooccipital horn ratio, Evans' index, and the bicaudate index. Ventricular volume was measured on high-resolution anatomical MR images. The frontooccipital horn ratio was found to have a stronger correlation with both absolute and relative ventricular volume than other indices. Further analysis of the brain volumes found that congenital hydrocephalus produced a negligible decrease in the volume of the brain parenchyma.
Departments of 1 Neurosurgery and.
Dustin K
DK
Ragan
Departments of 2 Radiology and.
Jonathon
J
Cerqua
Departments of 2 Radiology and.
Tiffany
T
Nash
3Radiology, Washington University School of Medicine, St. Louis, Missouri; and.
Robert C
RC
McKinstry
3Radiology, Washington University School of Medicine, St. Louis, Missouri; and.
Joshua S
JS
Shimony
Departments of 2 Radiology and.
Blaise V
BV
Jones
4Neurosurgery, University of Cincinnati, Ohio.
Francesco T
FT
Mangano
Departments of 2 Radiology and.
Scott K
SK
Holland
Departments of 2 Radiology and.
Weihong
W
Yuan
Departments of 1 Neurosurgery and.
David D
DD
Limbrick
D000293:Adolescent; D001921:Brain / Q000473:pathology; D002552:Cerebral Ventricles / Q000473:pathology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis* / Q000473:pathology; D007223:Infant; D007231:Infant, Newborn; D008297:Male
ABV = approximation of the brain volume; FOHR = frontooccipital horn ratio; ICV = intracranial volume; MRI; hydrocephalus; linear indices; volumes