Leventon ME: A registration, tracking and visualization system for image-guided surgery. MIT Master's Thesis, May 1997  Home/Search   Document Not in Database   Summary   Related Articles

....and intraoperative navigation. We have recently developed a novel neurosurgical navigator in which medical image registration and instrument tracking automatically establishes correspondence between the medical images from MRI scans, the three dimensional model and the actual patient environment [6]. Using this intraoperative guidance, medical instruments acting on the patient are localized in the 3D coordinate frame of the MRI imagery. Consequently, the surgeon is allowed to view a patient and at the same time display, in exact alignment, that view and all other surrounding internal ....

....in two stages. An initial alignment is obtained by recording the real space location of three points, then manually matching those points on the MRI model. This initial registration is refined by finding the optimal transformation that aligns all of the points onto the skin surface of the model [6, 14]. After registration the surgeon points to a known area on the patient using the LED probe, to confirm correspondence between the patient and the 3D model and MRI slices. During surgery, the surgeon uses a sterile LED probe to select any point on or inside the patient s brain. Any point may be ....

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Leventon ME: A registration, tracking and visualization system for image-guided surgery. MIT Master's Thesis, May 1997

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