手術室用CTシステムによる術直後CTの有用性

Computized Tomography Immediately after Surgery in the Neurosurgical Operating Theater

I．はじめに

　われわれは，昭和61年以来，本学の脳神経外科手術室にCTスキャナー（東芝TC−300／改）を設置し，手術室用CTシステムとしての基礎的検討，開発を行い3可動型ガントリーの設置などシステムとしての改良を行ってきた^4,5）．今回，昭和62年以来導入した・手術室用CTシステムによる術直後・手術室内CTを施行した206例を対象とし，手術室内における術直後CTの有用性について検討したので報告する．

Abstract

A TCT-300 scanner (manufactured by the Toshiba Co., Tokyo) has been installed in the operating room of Shinshu University Hospital since 1986. This neuro-surgical operating CT scanner system was developed for obtaining intra- and postoperative CT images in the operating room. We have carried out immediate postop-erative CT scanning in 206 cases : 170 were major and 36 were minor operations. A mobile CT scanner gantry has been used in 125 cases since June, 1988. We obtained CT images immediately after surgery on the digitalized operating table, the motion of which can be controlled as with the conventional CT scanner table. Immediate postoperative CT scans showed the extent of removed tumors or hematomas, position of the tip of ventricular or cisternal tubes, injury to the surrounding normal brain caused during the removal of lesions, and postoperative complications such as -hemorrhage, brain swelling and surgical patties which had been inadver-tently left in the wound. This CT scanner system in the operating room proved to be useful in the postoperative care of neurosurgical patients.