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生物医学的图像处理,计算和显示


ISSN 在线: 2162-3511

Archives: Volume 1, 2012 to Volume 2, 2013

生物医学的图像处理,计算和显示

DOI: 10.1615/VisualizImageProcComputatBiomed.2013005309

Advances in Frame-based versus Frameless Stereotaxic Methods in Localization of Coordinates During Neurosurgery

Zahra Hosseini
McMaster University; Department of Mechanical and Manufacturing Engineering Schulich School of Engineering, University of Calgary 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada
Behzad Iranpanah

ABSTRACT

The idea proposed by Horsley and Clark, to address the accuracy requirements of surgical procedures performed on the brain, was the foundation of stereotaxic techniques. These pioneers utilized a frame-based configuration, to create an extracranial reference system and identified the anterior and posterior commissure (AC-PC) on x-ray images to localize targets of interest. Proliferation of computed tomography has given rise to the improvement of frame-based stereotaxy and advent of frameless techniques. Numerous studies have been performed to validate, apply, and further improve these techniques. Application of frameless techniques have been found to be more robust when compared to frame-based systems. Furthermore, surgical procedures performed through frameless methods have been associated with shorter surgeries and hospital stays. Nevertheless, both techniques have limitations, such as an inability to compensate for brain shift, which results in localization mismatch. Intraoperative imaging has been employed by a number of groups to create a repeatable procedure by taking into account dynamic changes of intracranial structures.


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