A technique for computer-guided stereotaxis without preoperative head fixation

Cole A. Giller, Phillip Purdy

Research output: Contribution to journalArticle

1 Scopus citations


A CT-guided stereotactic method is described which uses a standard BRW frame for probe insertion but which does not require frame fixation to the skull during the localizing scan. The patient is instead scanned wearing three radiopaque scalp markers, and new software utilized to obtain BRW coordinates. Acceptable accuracy for targets greater than one centimeter in diameter was obtained in phantom trials and in three case reports. This technique may be helpful for stereotactic targets greater than one centimeter in diameter and when preoperative head fixation is not desirable or possible.

Original languageEnglish (US)
Pages (from-to)231-235
Number of pages5
JournalComputerized Medical Imaging and Graphics
Issue number4
StatePublished - Jan 1 1990



  • BRW frame
  • CT-guided stereotaxic
  • Stereotaxic coordinates
  • Stereotaxis

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Computer Vision and Pattern Recognition
  • Health Informatics
  • Computer Graphics and Computer-Aided Design

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