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Journal articles
Rigid registration of 3-D ultrasound with MR images: a new approach combining intensity and gradient information.
Abstract : We present a new image-based technique to rigidly register intraoperative three-dimensional ultrasound (US) with preoperative magnetic resonance (MR) images. Automatic registration is achieved by maximization of a similarity measure which generalizes the correlation ratio, and whose novelty is to incorporate multivariate information from the MR data (intensity and gradient). In addition, the similarity measure is built upon a robust intensity-based distance measure, which makes it possible to handle a variety of US artifacts. A cross-validation study has been carried out using a number of phantom and clinical data. This indicates that the method is quite robust and that the worst registration errors are of the order of the MR image resolution.
https://hal-cea.archives-ouvertes.fr/cea-00333699
Contributor : Alexis Roche <>
Submitted on : Thursday, October 23, 2008 - 6:01:08 PM
Last modification on : Monday, August 31, 2020 - 1:06:16 PM
Contributor : Alexis Roche <>
Submitted on : Thursday, October 23, 2008 - 6:01:08 PM
Last modification on : Monday, August 31, 2020 - 1:06:16 PM