[CT-stereotactic determination of targets for thalamotomy for movement disorders].

The methodology of determining an invisible target by CT-stereotaxy, such as the ventrolateral nucleus of the thalamus, is described. This approach obviates the need for traditional ventriculographic determination of the third ventricle commissures and allows accurate measurement of third ventricular width. Morbidity and length of hospitalization are thereby reduced.

CT appearance of giant colonic diverticulum.

The plain film, barium enema, and CT findings in a case of giant colonic diverticulum with the atypical feature of marginal calcifications are presented. The value of CT in the diagnosis and evaluation of giant colonic diverticulum is discussed.