Electromagnetic method for sample-induced resistance calculation of magnetic resonance coils
by Giulio Giovannetti, Vittorio Viti, Valentina Hartwig, Yongjun Liu, Wenhua Yu, Raj Mittra, Luigi Landini, Antonio Benassi
International Journal of Biomedical Engineering and Technology (IJBET), Vol. 4, No. 1, 2010

Abstract: Signal-to-Noise Ratio (SNR) calculation in Magnetic Resonance (MR) experiments requires the knowledge of biological sample-induced resistance value. Many authors studied sample–coil interaction by using quasi-static approach, with very simple coil and sample geometries; such method fails at high-field Magnetic Resonance Imaging (MRI). In this paper, we propose a theoretical algorithm for sample-induced resistance estimation, which uses a numerical solver based on Finite-Difference Time-Domain (FDTD) method for simulating MR systems. Comparison with experimental data demonstrated the great accuracy of the developed algorithm. The proposed method can be used as a tool to estimate sample-induced resistance values for more complex geometries.

Online publication date: Sat, 31-Jul-2010

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Biomedical Engineering and Technology (IJBET):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com