MRI-based temperature and SAR mapping with a new dual-coil solenoid/birdcage heating/measurement system

Sukhoon Oh; Colin A. Roopnariane; Mohammad Reza Tofighi; Christopher M. Collins

doi:10.1109/RWS.2010.5434270

MRI-based temperature and SAR mapping with a new dual-coil solenoid/birdcage heating/measurement system

Sukhoon Oh, Colin A. Roopnariane, Mohammad Reza Tofighi, Christopher M. Collins

School of Science, Engineering & Technology (Harrisburg)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Scopus citations

Abstract

We describe an MRI-based method for mapping temperature and specific absorption rate (SAR) using a solenoid coil and a birdcage coil for heating and imaging of a weakly conductive dielectric sample, respectively. The accuracy and the quality of SAR/temperature mapping are enhanced by separating the heating and imaging RF coils. 50 W of RF power is applied to the solenoid coil to heat the conductive agar-gel phantom for 120 sec. Maps of temperature increase were acquired with an MRI-based method. The MR-based measurements were in good agreement with fiber optic measurements. Finally, the dual-coil heating system was simulated using the finite difference time domain (FDTD) method. The distribution of numerically-calculated and experimentally-acquired SAR were also in good agreement.

Original language	English (US)
Title of host publication	2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest
Pages	520-522
Number of pages	3
DOIs	https://doi.org/10.1109/RWS.2010.5434270
State	Published - 2010
Event	2010 IEEE Radio and Wireless Symposium, RWW 2010 - New Orleans, LA, United States Duration: Jan 10 2010 → Jan 14 2010

Publication series

Name	2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest

Other

Other	2010 IEEE Radio and Wireless Symposium, RWW 2010
Country/Territory	United States
City	New Orleans, LA
Period	1/10/10 → 1/14/10

All Science Journal Classification (ASJC) codes

Computer Networks and Communications

Access to Document

10.1109/RWS.2010.5434270

Cite this

Oh, S., Roopnariane, C. A., Tofighi, M. R., & Collins, C. M. (2010). MRI-based temperature and SAR mapping with a new dual-coil solenoid/birdcage heating/measurement system. In 2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest (pp. 520-522). Article 5434270 (2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest). https://doi.org/10.1109/RWS.2010.5434270

@inproceedings{f4f1104eec014b9898178f6d085b9458,

title = "MRI-based temperature and SAR mapping with a new dual-coil solenoid/birdcage heating/measurement system",

abstract = "We describe an MRI-based method for mapping temperature and specific absorption rate (SAR) using a solenoid coil and a birdcage coil for heating and imaging of a weakly conductive dielectric sample, respectively. The accuracy and the quality of SAR/temperature mapping are enhanced by separating the heating and imaging RF coils. 50 W of RF power is applied to the solenoid coil to heat the conductive agar-gel phantom for 120 sec. Maps of temperature increase were acquired with an MRI-based method. The MR-based measurements were in good agreement with fiber optic measurements. Finally, the dual-coil heating system was simulated using the finite difference time domain (FDTD) method. The distribution of numerically-calculated and experimentally-acquired SAR were also in good agreement.",

author = "Sukhoon Oh and Roopnariane, {Colin A.} and Tofighi, {Mohammad Reza} and Collins, {Christopher M.}",

year = "2010",

doi = "10.1109/RWS.2010.5434270",

language = "English (US)",

isbn = "9781424447268",

series = "2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest",

pages = "520--522",

booktitle = "2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest",

note = "2010 IEEE Radio and Wireless Symposium, RWW 2010 ; Conference date: 10-01-2010 Through 14-01-2010",

}

Oh, S, Roopnariane, CA, Tofighi, MR & Collins, CM 2010, MRI-based temperature and SAR mapping with a new dual-coil solenoid/birdcage heating/measurement system. in 2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest., 5434270, 2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest, pp. 520-522, 2010 IEEE Radio and Wireless Symposium, RWW 2010, New Orleans, LA, United States, 1/10/10. https://doi.org/10.1109/RWS.2010.5434270

MRI-based temperature and SAR mapping with a new dual-coil solenoid/birdcage heating/measurement system. / Oh, Sukhoon; Roopnariane, Colin A.; Tofighi, Mohammad Reza et al.
2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest. 2010. p. 520-522 5434270 (2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - MRI-based temperature and SAR mapping with a new dual-coil solenoid/birdcage heating/measurement system

AU - Oh, Sukhoon

AU - Roopnariane, Colin A.

AU - Tofighi, Mohammad Reza

AU - Collins, Christopher M.

PY - 2010

Y1 - 2010

N2 - We describe an MRI-based method for mapping temperature and specific absorption rate (SAR) using a solenoid coil and a birdcage coil for heating and imaging of a weakly conductive dielectric sample, respectively. The accuracy and the quality of SAR/temperature mapping are enhanced by separating the heating and imaging RF coils. 50 W of RF power is applied to the solenoid coil to heat the conductive agar-gel phantom for 120 sec. Maps of temperature increase were acquired with an MRI-based method. The MR-based measurements were in good agreement with fiber optic measurements. Finally, the dual-coil heating system was simulated using the finite difference time domain (FDTD) method. The distribution of numerically-calculated and experimentally-acquired SAR were also in good agreement.

AB - We describe an MRI-based method for mapping temperature and specific absorption rate (SAR) using a solenoid coil and a birdcage coil for heating and imaging of a weakly conductive dielectric sample, respectively. The accuracy and the quality of SAR/temperature mapping are enhanced by separating the heating and imaging RF coils. 50 W of RF power is applied to the solenoid coil to heat the conductive agar-gel phantom for 120 sec. Maps of temperature increase were acquired with an MRI-based method. The MR-based measurements were in good agreement with fiber optic measurements. Finally, the dual-coil heating system was simulated using the finite difference time domain (FDTD) method. The distribution of numerically-calculated and experimentally-acquired SAR were also in good agreement.

UR - http://www.scopus.com/inward/record.url?scp=77952349946&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77952349946&partnerID=8YFLogxK

U2 - 10.1109/RWS.2010.5434270

DO - 10.1109/RWS.2010.5434270

M3 - Conference contribution

AN - SCOPUS:77952349946

SN - 9781424447268

T3 - 2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest

SP - 520

EP - 522

BT - 2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest

T2 - 2010 IEEE Radio and Wireless Symposium, RWW 2010

Y2 - 10 January 2010 through 14 January 2010

ER -

MRI-based temperature and SAR mapping with a new dual-coil solenoid/birdcage heating/measurement system

Abstract

Publication series

Other

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this