Update of diagnostic preoperative images using low-field interventional MRI for navigation in neurosurgery: rigid-body registration

Martin Kavec; David Wikler; Christophe L. M. Phillips; Lara M. Vigneron; Marc Levivier; Jacques G. Verly

doi:10.1117/12.597977

12 April 2005 Update of diagnostic preoperative images using low-field interventional MRI for navigation in neurosurgery: rigid-body registration

Martin Kavec, David Wikler, Christophe L. M. Phillips, Lara M. Vigneron, Marc Levivier, Jacques G. Verly

Author Affiliations +

Proceedings Volume 5744, Medical Imaging 2005: Visualization, Image-Guided Procedures, and Display; (2005) https://doi.org/10.1117/12.597977
Event: Medical Imaging, 2005, San Diego, California, United States

Abstract

This study looks into the rigid-body registration of pre-operative anatomical high field and interventional low field magnetic resonance images (MRI). The accurate 3D registration of these modalities is required to enhance the content of interventional images with anatomical (CT, high field MRI, DTI), functional (DWI, fMRI, PWI), metabolic (PET) or angiography (CTA, MRA) pre-operative images. The specific design of the interventional MRI scanner used in the present study, a PoleStar N20, induces image artifacts, such as ellipsoidal masking and intensity inhomogeneities, which affect registration performance. On MRI data from eleven patients, who underwent resection of a brain tumor, we quantitatively evaluated the effects of artifacts in the image registration process based on a normalized mutual information (NMI) metric criterion. The results show that the quality of alignment of pre-operative anatomical and interventional images strongly depends on pre-processing carried out prior to registration. The registration results scored the highest in visual evaluation only if intensity variations and masking were considered in image registration. We conclude that the alignment of anatomical high field MRI and PoleStar interventional images is the most accurate when the PoleStar's induced image artifacts are corrected for before registration.

Citation Download Citation

Martin Kavec, David Wikler, Christophe L. M. Phillips, Lara M. Vigneron, Marc Levivier, and Jacques G. Verly "Update of diagnostic preoperative images using low-field interventional MRI for navigation in neurosurgery: rigid-body registration", Proc. SPIE 5744, Medical Imaging 2005: Visualization, Image-Guided Procedures, and Display, (12 April 2005); https://doi.org/10.1117/12.597977

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available