Title :
RF power duty cycle restrictions of continuous arterial spin labeling coil for 7.0 tesla perfusion magnetic resonance imaging
Author :
Wang, Shumin ; Chuang, Kai-Hsiang ; Talagala, Lalith
Author_Institution :
LFMI, Annapolis
Abstract :
Here, we applied the Finite-Difference Time-Domain (FDTD) method to study the duty cycle restrictions at 7.0 Tesla [6]. We first obtained the required transverse magnetic field (B) field strength by FDTD simulations and experiments at 3.0 Tesla. The samei^ field strength is required at 7.0 Tesla and the maximum allowable power duty cycle is obtained by simulations.
Keywords :
finite difference time-domain analysis; haemorheology; magnetic resonance imaging; RF power duty cycle restrictions; continuous arterial spin labeling coil; finite-difference time-domain method; perfusion magnetic resonance imaging; Biological system modeling; Capacitors; Coils; Computational modeling; Finite difference methods; Humans; Labeling; Magnetic resonance imaging; Radio frequency; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4396498
