Table 1.

Accuracy of the FFD and DCT spatial normalization approach based on anatomical landmarks.

Anatomical Landmark	FFD		DCT

	PFBT Survivors^a	Sibling Controls^a	PFBT Survivors^a	Sibling Controls^a
Splenium of corpus callosum (outer)	2.3	2.0	2.8	2.4
Splenium of corpus callosum (inferior)	2.0	1.9	2.1	2.1
Splenium of corpus callosum (inner)	2.4	2.2	2.6	2.5
Genu of corpus callosum (outer)	2.5	1.7	2.6	1.7
Genu of corpus callosum (inner)	2.1	2.0	2.3	2.3
Pons (superior)	1.7	1.4	1.7	1.4
Pons (inferior)	2.4	2.0	2.7	2.2
Putamen anterior (left)	2.2	1.9	2.5	2.3
Putamen posterior (left)	2.3	2.0	2.5	2.4
Putamen anterior (right)	2.3	2.3	2.6	2.3
Putamen posterior (right)	2.2	2.3	2.5	2.4
Anterior commissure	1.5	1.5	1.7	1.6
Posterior commissure	1.5	1.5	1.6	1.5
Anterior tip of lateral ventricle (left)	2.3	1.9	2.7	2.4
Inferior tip of lateral ventricle (left)	2.3	2.1	2.5	2.2
Anterior tip of lateral ventricle (right)	2.4	2.3	2.4	2.3
Inferior tip of lateral ventricle (right)	2.1	2.1	2.3	2.1

All landmarks	2.1	1.9	2.4	2.1

The groups’ average residual normalization errors (in mm) at individual landmarks are shown.