Meeting Banner
Abstract #2409

Chemical-Shift Selective Multislice Imaging Using the Gradient Reversal Technique

Yeji Han1, Yoojin Lee1, ChangHyun Oh1, HyunWook Park1

1Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea, Republic of

The chemical shift phenomenon can produce severe artifacts of geometric shift or blurring in MRI. Instead of treating the chemical shift phenomenon as a source of artifact, many imaging technologies, including the gradient reversal (GR) technique, have been developed to acquire separate sets of images from tissues of different resonance frequencies. Although the GR method has not been widely used, recent reports have confirmed the effectiveness of this method for fat suppression at 3.0T and higher field. In this abstract, we expand the concept of the GR technique to acquire multislice chemical-shift selective images.

Keywords

abstract according accuracy additional advanced alternating although amount amplitude application applications applied artifact artifacts bandwidth beneficial blurring bottom chemical component components concept contribute contributing contribution custom decomposition desired determined developed diagram diffusion displacement effective effectiveness efficient electrical encoding engineering enough equivalent especially excitation exists expand expanded experiment field final frequencies frequency generated generation geometric gradient illustrated instead institute introduced keeping known larger made many matrix methanol modification moreover offset olive park phantom phenomenon polarities polarity position prevented produce produced produces properly proposed pulse pulses recently recommended refocusing related reported republic require required respect reversal reversed reversing revisited robust schemes science selection selective separate sets setting severe simple since slice slices source sources soybean spectrally spin strength suppression system technologies technology tissues treating twice upper verify water whereas widely words