PMID- 33018518
OWN - NLM
STAT- MEDLINE
DCOM- 20201023
LR  - 20201023
IS  - 2694-0604 (Electronic)
IS  - 2375-7477 (Linking)
VI  - 2020
DP  - 2020 Jul
TI  - RF Heating Analysis of Implanted lead wires under 3.0 Tesla Magnetic Resonance 
      Imaging System.
PG  - 2516-2519
LID - 10.1109/EMBC44109.2020.9176018 [doi]
AB  - RF heating has severely limited the application of high-field magnetic resonance 
      imaging (MRI) in the patients with active implantable medical devices (AIMDs). 
      Based on the finite element methods (FEMs), we study the RF heating of a lead 
      implanted in the human body under 3.0 T MRI. The coupled simulation of 
      electromagnetic and heat transfer is used to analyze the relationship between 
      several factors, such as the resonance length, the implantation position, the 
      implantation configuration, and the thermal conductivity, and RF heating. Results 
      show that the resonance length of the lead is half of the RF wavelength, and the 
      temperature rise exceeds the acceptable range of human body when the resonance 
      occurs. The electromagnetic field distribution in the phantom is not uniform, so 
      the field density around the wire may vary with different implantation positions 
      and configurations. Temperature rise reduces with the decrease of the field 
      density. In addition, RF heating can be reduced by increasing the thermal 
      conductivity.
FAU - Wang, Bocheng
AU  - Wang B
FAU - Li, Jin
AU  - Li J
FAU - Jin, Hua
AU  - Jin H
FAU - Chen, Xiang
AU  - Chen X
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Annu Int Conf IEEE Eng Med Biol Soc
JT  - Annual International Conference of the IEEE Engineering in Medicine and Biology 
      Society. IEEE Engineering in Medicine and Biology Society. Annual International 
      Conference
JID - 101763872
SB  - IM
MH  - Electric Wiring
MH  - *Heating
MH  - Humans
MH  - *Magnetic Resonance Imaging
MH  - Prostheses and Implants
MH  - Temperature
EDAT- 2020/10/07 06:00
MHDA- 2020/10/24 06:00
CRDT- 2020/10/06 01:04
PHST- 2020/10/06 01:04 [entrez]
PHST- 2020/10/07 06:00 [pubmed]
PHST- 2020/10/24 06:00 [medline]
AID - 10.1109/EMBC44109.2020.9176018 [doi]
PST - ppublish
SO  - Annu Int Conf IEEE Eng Med Biol Soc. 2020 Jul;2020:2516-2519. doi: 
      10.1109/EMBC44109.2020.9176018.