Title :
Calculation of RF Peak Power for 2D Arbitrary Shape Excitation in MRI
Author :
Qin, Qin ; De Graaf, Robin A. ; Does, Mark D. ; Gore, John C.
Author_Institution :
Dept. of Biomed. Eng., Yale Univ., New Haven, CT
Abstract :
An exact formula has been derived to calculate the required RF (B1) peak power for 2D arbitrary shape excitation in MRI with rectilinear K-space trajectory. An approximate formula has also been derived for spiral trajectory
Keywords :
biomedical MRI; magnetic resonance imaging; radiofrequency peak power; rectilinear K-space trajectory; spiral trajectory; two-dimensional arbitrary shape excitation; Biomedical measurements; Fourier transforms; Magnetic resonance imaging; Power demand; Pulse measurements; Pulse shaping methods; Radio frequency; Sampling methods; Shape measurement; Spirals;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1616675
