Development of a Simultaneous Multi-Slice Radiofrequency Pulse in a Sequence Programming Environment with Implementation in an Ill-Conditioned Controlled Aliasing Reconstruction Simulation

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Last Modified
  • March 20, 2019
Creator
  • Pecora, Christian
    • Affiliation: School of Medicine, UNC/NCSU Joint Department of Biomedical Engineering
Abstract
  • Scan time acceleration, with many clinical and research applications, has been an active research area in magnetic resonance imaging with the introduction of new pulse sequences, parallel imaging (PI) techniques, and methods to acquire multiple slices simultaneously. The development of novel uses for the latest techniques is facilitated by the ability to create customized in-house pulse sequences. In this work, a simultaneous multi-slice radiofrequency (RF) pulse was developed within a sequence programming environment. This RF pulse was then utilized in a reconstruction simulation of a controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA) acquisition with an ill-conditioned coil geometry. The slice-excitation behavior of the in-house developed RF pulse was affirmed along with a successful confirmation of the image reconstruction benefits of the CAIPIRINHA technique. This provided a demonstration of sequence development and the ability to implement CAIPIRINHA in future PI studies requiring a demanding coil-array geometry.
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Rights statement
  • In Copyright
Advisor
  • An, Hongyu
  • Lalush, David
  • Wang, Shumin
Degree
  • Master of Science
Degree granting institution
  • University of North Carolina at Chapel Hill Graduate School
Graduation year
  • 2016
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