CRW-FN stereotactic apparatus and an improved method of stereotactic calculations

Shirshov A.V., Pestryakov A.V., Belov E.N.

(Research Institute of Neurology of the Russian Academy of Medical Science, Moscow, Russia)

An improved method of stereotactic calculations for use with CRW-FN stereotactic apparatus (Radionics Inc., USA) has been worked out on the basis of experimental and clinical studies. It consists in consecutive obtaining of tomographic landmarks from a localizer and a target point proper. Automatic processing of data allows to receive three-dimensional coordinates of a target point.

This method excludes the necessity of making drawings with a tomograph console or a computer mouse. Thus, it improves precision of calculations and accelerates this stage of an operation (3-4 times).