Segmentation of Ultrasound Images for Tumor Surgery
A surgical navigator for treatment of tumors in the musculoskeletal system is being developed at the Image Analysis and Visualization Lab. of CCADET, UNAM. The navigator is designed to assist the surgeon during radiofrecuency (RF) ablation of the tumors, through real time computer graphics models of the tumor, the adjacent structures (bones), and the active volume of the RF probe. The three dimensional model of the tumor and adjacent structures will be constructed from a preoperative MRI study and then registered intraoperatively to the patient using an optically tracked ultrasound probe. In this paper are reported our preliminary results from the semiautomatic segmentation of the tumor and adjacent bones in ultrasound images. The use of ultrasound for intraoperative registration has many advantages such as relative low cost, portability, avoidance of radiation exposure and fiducial markers.
© 2006 American Institute of Physics
Published online 08 septiembre 2006
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