pneumoventriculography
/ˌnjuːmə(ʊ)vɛnˌtrɪkjʊˈlɒɡrəfi/Medicine. Now rare
noun
The injection of air into the cerebral ventricles as a radiological contrast medium; radiological examination by this means.
Origin
Early 20th century. From pneumo- + ventriculo- + -graphy.