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Abstract #2263

Improved 2D navigated multishot DTI of the optic nerve with triggered eye fixation.

Saikat Sengupta1,2, Alex Smith2,3, Samantha By2,3, Ha-Kyu Jeong4, and Seth Smith1,2

1Department of Radiology, Vanderbilt University Medical Center, Nashville, TN, United States, 2Vanderbilt University Institute of Imaging Science, 3Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, United States, 4Philips Electronics, Korea, Republic of

Optic Nerve DTI is of high interest in pathologies of the anterior visual pathway but high quality high-resolution diffusion MRI in the optic nerve is challenging because of involuntary eye motion. Vulnerability to motion induced phase errors is increased when multishot EPI (mshEPI) is used for achieving high imaging resolutions. In this abstract we present a triggered diffusion MRI approach with eye fixation that can significantly improve quality of optic nerve DTI, especially with mshEPI.

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