CST – Computer Simulation Technology

Title:
Simulation and Verification of Magnetic Field Gradient Waveforms in the Presence of a Metallic Vessel in Magnetic Resonance Imaging
Author(s):
Frédéric G. Goora , HanHui , Bruce G. Colpitts , Bruce J. Balcom
Source:
IEEE Transactions on Magnetics
Vol./Issue/Date:
Volume: 48, Issue: 9, September 2012
Year:
2012
Page(s):
2440 - 2449
Keywords:
Eddy currents, electromagnetic transients, gradient coil, magnetic resonance imaging, simulation
Abstract:
We present simulation and experimental results regarding the generation of eddy currents due to switched magnetic field gradients during the use of metallic vessels in high-pressure magnetic resonance imaging (MRI) applications. The induced eddy currents result in a corruption of the applied magnetic field gradient as experienced by the object being imaged. Simulations using CST EMStudio™ have revealed the spatial distribution and temporal evolution of eddy currents, the resulting magnetic fields, and their dependence on vessel material and orientation of the applied switched magnetic field gradient. The simulation results have been compared to measured data with excellent agreement. Agreement between simulated and measured data permits increasingly sophisticated models to be developed such that simulation results reliably guide the design of improved metal vessels.
Document:

Back to References

contact support

Your session has expired. Redirecting you to the login page...

We use cookie to operate this website, improve its usability, personalize your experience, and track visits. By continuing to use this site, you are consenting to use of cookies. You have the possibility to manage the parameters and choose whether to accept certain cookies while on the site. For more information, please read our updated privacy policy


Cookie Management

When you browse our website, cookies are enabled by default and data may be read or stored locally on your device. You can set your preferences below:


Functional cookies

These cookies enable additional functionality like saving preferences, allowing social interactions and analyzing usage for site optimization.


Advertising cookies

These cookies enable us and third parties to serve ads that are relevant to your interests.