Minimally Invasive Stereotaxy; Clinical Use of the Gill-Thomas-Cosman (GTC) Repeat Stereotactic Localiser

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Abstract
The Gill-Thomas-Cosman (GTC) repeat stereotactic localiser allows frame-based stereotaxy to be performed in a minimally invasive manner by using dental fixation rather than traditional skull pins. The GTC enables accurate relocation in the same stereotactic space so that image acquisition and surgery can be separated if necessary. The device is especially suitable for fractionated stereotactic radiotherapy where it conveniently provides both patient-frame and frame-couch fixation on a repeatable basis.