Computer-Assisted and Frameless Stereotaxy in Australia: The Operating Arm System
The trend toward minimally invasive surgery, coupled with the increasing use of computer software and hardware, has led to a greater use of stereotactic procedures as part of mainstream neurosurgery. Computer-assisted and frameless stereotactic systems allow the performance of stereotactic procedures without the need for mechanical linkage to a stereotactic frame. Both mechanical and optical digitizers are used in Australia, the most widely used system being the Operating Arm System (OAS) from Radionics (Burlington, MA, USA). This system has the advantages of simplicity of use, software programs of image fusion, and a functional stereotactic atlas, and can be used for both frameless and framed stereotactic cases. The initial Australian experience with the OAS at St. Vincent’s Hospital and Concord Hospital in Sydney and its use in 106 cases is presented.
Key wordsFrameless stereotaxy Intracranial neurosurgery Image fusion Mechanical digitizer Functional atlas
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