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Abstract #1200

Simulating the effects of off-resonance effects from a CHORUS pulse sequence in a single sided, low-field MRI system.

Kartiga Selvaganesan1, Muller Gomes2, Will Grissom3, and Alek Nacev2
1Yale School of Engineering & Applied Science, Yale, New Haven, CT, United States, 2Promaxo, Oakland, CA, United States, 3Biomedical Engineering, Vanderbilt University, Nashville, TN, United States


Moving towards single-sided, low-field MRI systems can increase the portability and access to this invaluable clinical tool. However, the B0-fields generated by these systems are highly inhomogeneous, and severe artifacts arise when the RF pulse does not cover the full bandwidth of spin resonances. In this study, we have developed a simulation algorithm that will allow us to better simulate the phase variations induced by B1 and B0 inhomogeneities and help us design RF schemes to remove unwanted phase to produce higher quality images.

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