A low cost modification of an old Leksell stereotactic frame to allow CT-guided stereotaxy

The high cost of commercial CT-compatible stereotactic frames has restricted the availability of CT-guided stereotaxy for many neurosurgical centres. However, many of these centres do possess the standard stereotactic frames for projection radiography, of which the old type Leksell frame is probably...

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Bibliographic Details
Published inBritish journal of neurosurgery Vol. 4; no. 3; p. 193
Main Authors Jones, A P, Sofat, A, Davis, C H, Denton, S, Gurusinghe, N T
Format Journal Article
LanguageEnglish
Published England 1990
Subjects
Adult
Aged
Biopsy - methods
Brain - pathology
Brain Neoplasms - pathology
Costs and Cost Analysis
Equipment Design
Female
Humans
Male
Mathematics
Stereotaxic Techniques - economics
Stereotaxic Techniques - instrumentation
Tomography, X-Ray Computed
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Summary:The high cost of commercial CT-compatible stereotactic frames has restricted the availability of CT-guided stereotaxy for many neurosurgical centres. However, many of these centres do possess the standard stereotactic frames for projection radiography, of which the old type Leksell frame is probably the most common. We have devised a simple and low-cost modification to an old Leksell frame to allow CT-guided stereotaxy. The nature of the modifications allow complete freedom of positioning of the frame relative to the CT scanner and coordinate transformations can be performed simply and effectively. The modified frame has been used successfully for some 18 months and the modification has now been performed at two centres in the North West Regional Health Authority. We hope this modification will allow many other centres to embark on CT-guided stereotaxy.
ISSN:0268-8697
DOI:10.3109/02688699008992723