The bicaudate-frontal index can help to identify changes in the size of lateral ventricles as is seen in hydrocephalus.
Synonym: ventricular index
Examination: head CT with axial sections
Parameters:
(1) minimum distance between the 2 caudate nuclei in the lateral ventricles (BN)
(2) distance between the lateral left anterior and lateral right anterior horns (AH)
index =
= (BN) / (AH)
|
Age
|
Mean (Wilk et al)
|
|
<= 12 months
|
0.386
|
|
1.01 to 3 years
|
0.316
|
|
3.01 to 6 years
|
0.291
|
|
6.01 to 9 years
|
0.290
|
|
9.01 to 12 years
|
0.283
|
|
12.01 to 15 years
|
0.285
|
|
15.01 to 18 years
|
0.312
|
