Meeting Banner
Abstract #3236

Parallel transmission RF pulse design for simultaneous multi‐slab excitation at 7 Tesla: a simulation study

Xin Shao1, Xiaodong Ma2, Simin Liu1, Kamil Ugurbil2, Hua Guo1, and Xiaoping Wu2
1Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China, 2Center for Magnetic Resonance Research, Radiology, Medical School, University of Minnesota - Twin Cities, Minneapolis, MN, United States


It has been reported that combining ultrahigh field (UHF) with 3D imaging is beneficial for high-resolution imaging. Nevertheless, image quality may suffer from increased magnetic field inhomogeneity. Thus, we combined radiofrequency (RF) parallel transmission (pTx) with 3D simultaneous multi-slab (SMSlab) acquisition at 7T to get improved transmit field and optimal SNR efficiency concurrently. By simulation, it was proved that by using a 3-spoke RF pulses we could get 25% more uniform excitation magnitude than 2-spoke pulses (with almost the same RF peak power and identical pulse duration).

This abstract and the presentation materials are available to members only; a login is required.

Join Here