TY - GEN
T1 - Automatic RF leakage signal canceler in MRI applications
AU - Sohn, Sung Min
AU - Garwood, Michael
AU - Vaughan, John Thomas
N1 - Funding Information:
This work was supported by national institutes of health (NIH) grants: P41 EB015894, R24 MH105998, K99 EB020058, S10 RR023730, S10 RR027290.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/10/4
Y1 - 2017/10/4
N2 - This work presents the feasibility demonstration of an automatic RF leakage canceler for magnetic resonance imaging (MRI) applications that require a simultaneous transmit and receive (STAR) system. The automatic system with wireless control enables a radiofrequency (RF) coil to achieve greater than 40 dB decoupling between transmit and receive ports in 900 ms. The system stability and noise contribution to MR images were evaluated. To demonstrate feasibility of this approach, MR images were acquired by transmitting an RF excitation pulse and acquiring an MR receive signal simultaneously on a 4-tesla (T) MRI scanner.
AB - This work presents the feasibility demonstration of an automatic RF leakage canceler for magnetic resonance imaging (MRI) applications that require a simultaneous transmit and receive (STAR) system. The automatic system with wireless control enables a radiofrequency (RF) coil to achieve greater than 40 dB decoupling between transmit and receive ports in 900 ms. The system stability and noise contribution to MR images were evaluated. To demonstrate feasibility of this approach, MR images were acquired by transmitting an RF excitation pulse and acquiring an MR receive signal simultaneously on a 4-tesla (T) MRI scanner.
KW - Magnetic resonance imaging (MRI)
KW - RF leakage signal canceling
KW - RF signal decoupling
KW - Simultaneous transmit and receive (STAR)
UR - http://www.scopus.com/inward/record.url?scp=85032492357&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85032492357&partnerID=8YFLogxK
U2 - 10.1109/MWSYM.2017.8058876
DO - 10.1109/MWSYM.2017.8058876
M3 - Conference contribution
AN - SCOPUS:85032492357
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 1394
EP - 1395
BT - 2017 IEEE MTT-S International Microwave Symposium, IMS 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IEEE MTT-S International Microwave Symposium, IMS 2017
Y2 - 4 June 2017 through 9 June 2017
ER -