Patent ID: 6640127
Filing Date: 2003-10-28
Classification: A61B

Abstract:
A surgical operation navigating system comprising:a reference frame being fitted to a subject of medical treatment in a tomographic image of the subject by using three spots on the surface of the body of the subject, which include at least one of the top of the left ear, the top of the right ear and the nasal projection, and having three or more than three markers detectable at least either in an X-ray image or in an MRI image thereof, said markers being arranged at predetermined positions constituting a plane; a coordinate computing section for computationally determining the coordinates of the markers on the reference frame in terms of a coordinate system uniquely defined for the image for examination; and a correspondence computing section for computationally determining the transformation between said coordinate system for the tomographic image for examination and a coordinate system defined for the real space containing said markers on the basis of the coordinates of the markers as determined by said coordinate computing section in terms of the coordinate system for the tomographic image for examination and the coordinates of the markers as determined in terms of said coordinate system for the real space.