文章基本信息

标题：Study on Accuracy Improvement of Registration for Transcranial Magnetic Stimulation
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作者：Se-jong Ahn ; Sung-wook Shin ; Hyu-jeong Kim 等
期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2012
卷号：12
期号：2
页码：20-26
出版社：International Journal of Computer Science and Network Security
摘要：Transcranial Magnetic Stimulation (TMS) is a noninvasive method using magnetic simulation and is being used for stroke patients or those with various cerebral diseases accompanying memory impairment, such as Parkinson��s disease and depression. This type of treatment is to stimulate the brain directly, and it is essential to apply correct stimulation to an anatomical position of a patient. For effective TMS, therefore, a navigation system is needed to provide information about a correct position for stimulation. This system shows the location and the direction of the stimulated position on the three-dimensional magnetic resonance imaging of a patient and applies magnetic stimulation to a correct location in consideration of anatomical features of individual patients. To apply such a navigation system, technology for tracing a relative coordinate of a transducer that generates a magnetic field is necessary to stimulate the brain and the head location of a patient. For the real-time tracing of the coordinate, therefore, this study used two cameras to draw a three-dimensional coordinate through view-difference algorithm of the cameras, analytical forward intersection, camera calibration, and information about internal elements of the cameras. A program was developed to show registration between information about the head location and posture of a patient through the three-dimensional coordinate and the three-dimensional model obtained from the magnetic resonance imaging data in real time.
关键词：Transcranial Magnetic Stimulation(TMS); Field of View(FOV); Navigation System; Registration; Camera Calibration