Direct visualization of intracranial tumours in stereotactic and angiographic films by computer calculation of longitudinal CT-sections: a new method for stereotactic localization of tumour outlines.

A new method for the direct transformation not only of a target point, but also of the whole tumour outlines from sagittal, coronal, and oblique computer calculated CT-reconstructions to stereotactic X-ray films of any scale is presented. The role of this method in the stereotactic therapy of intracranial tumours and the possibilities which are thus provided are discussed.