Abstract
The imaging of gliomas and metastases by 3D ultrasound has been evaluated by comparing image findings and histopathological results. Biopsies have been taken prior to resection and close to the tumour border as shown in the ultrasound images. The tumour border shown in the ultrasound images was verified by an edge detection algorithm using the Sobel method. Ultrasound images, with the biopsy position indicated, have been evaluated and compared to the histhopathology of the corresponding biopsy. The degree of match between image evaluations and histopathology should reflect the ability of 3D ultrasound to image size and location of tumours correctly. The image slices of intraoperative 3D ultrasound are also compared to corresponding image slices of preoperative MR data (Tl and T2). The preliminary results show that intraoperative 3D ultrasound provides accurate information about tumour border and location and may accordingly be used for guiding surgical procedures. For gliomas the histopathologic match for the intraoperative 3D ultrasound is better than the corresponding match for the preoperative MR data.
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Selbekk, T. et al. (2002). Neurosurgical biopsies guided by 3D ultrasound - comparison of image evaluations and histopathological results. In: Lemke, H.U., Inamura, K., Doi, K., Vannier, M.W., Farman, A.G., Reiber, J.H.C. (eds) CARS 2002 Computer Assisted Radiology and Surgery. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-56168-9_22
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DOI: https://doi.org/10.1007/978-3-642-56168-9_22
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