By Topic

Magnetic susceptibility artifacts in magnetic resonance imaging: calculation of the magnetic field disturbances

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Balac, S. ; Inst. de Recherche Math., Rennes I Univ., France ; Caloz, G.

In magnetic resonance imaging, inhomogeneities of the static magnetic field lead to perturbations in the resulting images, called artifacts. The authors' goal is to compute numerically the disturbances induced by a material having magnetic properties different from that of the surrounding tissues. The method is linked to an artifact reconstruction model to get simulated images. This model needs very accurate results in a fine three-dimensional grid around the implant. The use of standard methods would lead to solve very large systems. The authors' method is based on a surface integral representation of the magnetic field. To implement it in an efficient way, an analytical expression is derived when the boundary of the domain can be meshed in flat panels. For curved surfaces a numerical quadrature scheme is implemented

Published in:

Magnetics, IEEE Transactions on  (Volume:32 ,  Issue: 3 )