Ultrasound based intraoperative brain shift correction

Abstract

Intraoperative brain deformation (brain shift) limits the accuracy of image-guided neurosurgery. Intraoperative Magnetic Resonance (MR) images can be used for its estimation and correction, but open magnet scanners are very expensive. We propose a methodology that uses intraoperative 3D ultrasound (US) images for the brain shift correction, and we propose to use efficient techniques in order to compensate the brain deformation In real time. In order to evaluate our method, a head phantom was designed and built that allows to simulate the brain deformation and to validate our methodology.