3D Rigid Registration of Intraoperative Ultrasound and Preoperative MR Brain Images Based on Hyperechogenic Structures
Figure 2
Patient 1. (a) The denoised MR image corresponding to US image (b). (c) The probability map based on operator and extracted from denoising MR image. The preoperative MR image is resliced with the registration matrix provided by the neuronavigation system. The matching is not perfect due to the initial error, estimated around 4.2 mm by the experts for this patient. As visible on the US image, the lesion presents a hypoechogenic central area (indicated on the US image by a narrow).
