Computer aided surgery : official journal of the International Society for Computer Aided Surgery
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Comput. Aided Surg. · Jan 1997
Clinical introduction of an adjustable rigid instrument holder for frameless stereotactic interventions.
Interactive image guidance is now in routine use for open neurosurgical procedures and has demonstrated patient benefits. However, freehand interactive guidance is not an appropriate replacement for the traditional frame-based stereotactic procedures of biopsy, electrode placement, and functional lesioning. ⋯ We describe such a device, which is employed for the guidance of biopsy needles, shunts, electrodes, and endoscopes during neuronavigation. The method of frameless stereotactic biopsy retrieval with an infrared-based neuronavigation system is described, clinical results are given, and further areas of application discussed.
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Comput. Aided Surg. · Jan 1997
Accuracy, efficacy, and clinical applications of the Radionics Operating Arm System.
The aim of this study was to evaluate the accuracy and efficacy of the Radionics Operating Arm System (OAS; Radionics Applications Software, Burlington, MA) in a routine clinical setup. The OAS is a frameless stereotactic articulated arm that can be used in conjunction with computed tomography (CT) or magnetic resonance (MR) imaging to provide image-based intraoperative navigation. The system was used in 130 consecutive cases. ⋯ Its use in conjunction with MRI and a cervical collar fiducial system, to perform anterior cervical surgery in 10 patients, localized the level in all patients. Overall, the Radionics OAS was sufficiently reliable and accurate in a wide range of routine neurosurgical procedures. Therefore, we integrated it into our routine neurosurgical practice.