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A pulsed electromagnet controller for prepolarized MRI

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3 Author(s)
Hyokwon Nam ; Dept. of Electr. Eng., Texas A&M Univ., TX, USA ; S. Nandi ; P. N. Morgan

Conventional magnetic resonance imaging (MRI) collects the signal from magnetization created in the sample by a strong and uniform magnetic field. An alternative approach, called prepolarized MRI (PMRI), uses a pulsed magnetic field to boost equilibrium magnetization in the sample prior to signal collection. Strong magnetization in the sample contributes to high signal-to-noise ratio (SNR) which is a fundamental measure of scanner performance. To enable PMRI experiments, a pulsed electromagnet controller has been designed and built. Here the theory of the controller is presented and initial results are discussed

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Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE  (Volume:4 )

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