a To determine volumes of corpus callosum and intracranial volumes of Vietnamese normal adults. Subjects and methods: Analyzing volumes of corpus callosum and intracranial volumes from cranial magnetic resonance images taken from 455 Vietnamese healthy subjects (males ), and ranging in age from 17 to 87 years. Results: The total volume of corpus callosum was indifferent between genders (males: ± cm3 ; females ± cm3 ; p = ), but volumes of rostrum, genu, and splenium regions were larger in males than those in females. The intracranial volume in females ( ± cm3 ) was smaller than that in males ( ± cm3 ) (p | Measuring the corpus callosum and intracranial volume of Vietnamese normal adults using magnetic resonance imaging