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Abstract #3204

Rapid R2 mapping: A comparison between ultrafast SE-SS-PARSE and FSE

Ningzhi Li 1 , Mark Bolding 2 , and Donald B Twieg 3

1 Center for Neuroscience and Regenerative Medicine, Bethesda, Maryland, United States, 2 Department of Radiology, University of Alabama at Birmingham, AL, United States, 3 Department of Biomedical Engineering, University of Alabama at Birmingham, AL, United States

Rapid R2 mapping is of significant interests to MRI scientists and can be applied in many research areas. The recent introduced SE-SS-PARSE (single-shot parameter assessment by retrieval from signal encoding) is an ultrafast and direct R2 mapping technique. By modeling signal changes during the sampling, SE-SS-PARSE promises a more accurate and robust data measurement. This study evaluates the accuracy of R2 mapping in SE-SS-PARSE by comparing it with fast SE, a commonly used rapid R2 mapping method. Conventional SE provided references. We found that SE-SS-PARSE provided accurate R2 mapping with a much shorter acquisition time compared to fast SE.

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