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Abstract #1701

Ultra High Resolution Imaging of Rodent Cochlea using a Composite Gradient System on a 3T Clinical MRI

Seong-Eun Kim 1 , K Craig Goodrich 1 , Joshua D Kaggie 1 , Richard Wiggins 1 , Travis Abele 1 , J Rock Hadley 1 , Bradley D Bolster, Jr 2 , and Dennis L Parker 1

1 UCAIR, Department of Radiology, University of Utah, Salt Lake City, Utah, United States, 2 Siemens Healthcare, Salt Lake City, Utah, United States

Ultra high resolution MRI capable of resolving the cochlear internal structures has been performed in small bore MRI scanners with higher field strength(>4.7T) and gradient performance. We hypothesize that improved images of the cochlear anatomy may also be obtained on high field human MRI scanners that have increased gradient performance and performed high resolution rodent cochlea imaging using an insert gradient array simultaneously with the whole body gradients of our 3T clinical MRI scanner. The use of composite gradients will allow for higher spatial resolution cochlear imaging while maintaining acceptable SNR and scan duration and decreasing artifact.

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