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An improved cylindrical FDTD method and its application to field-tissue interaction study in MRI

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6 Author(s)
Jieru Chi ; Sch. of Autom. Eng., Qingdao Univ., Qingdao, China ; Feng Liu ; Ling Xia ; Tingting Shao
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This paper presents a three dimensional finite-difference time-domain (FDTD) scheme in cylindrical coordinates with an improved algorithm for accommodating the numerical singularity associated with the polar axis. The regularization of this singularity problem is entirely based on Ampere's law. The proposed algorithm has been detailed and verified against a problem with a known solution obtained from a commercial electromagnetic simulation package. The numerical scheme is also illustrated by modeling high-frequency RF field-human body interactions in MRI. The results demonstrate the accuracy and capability of the proposed algorithm.

Published in:
Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE

Date of Conference: Aug. 31 2010-Sept. 4 2010

Page(s):
3154 - 3157
ISSN :
1557-170X
Print ISBN:
978-1-4244-4123-5
INSPEC Accession Number:
11650811
Conference Location :
Buenos Aires
Digital Object Identifier :
10.1109/IEMBS.2010.5627189
Product Type:
Conference Publications
PubMed ID :
21096594

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