Figure 3From: Neurological outcomes in Chiari type II malformations and their correlation to morphological findings and fetal heart rate patterns: a retrospective study Correlation between the developmental quotient (DQ) and the degree of the cerebellar herniation. 2, below the foramen magnum to the inferior margin of C2; 3, below C2 to the inferior margin of C3; and 4, below C3 to the inferior margin of ≥ C4.Back to article page