Abstract #1391

Field Strength and Gadolinium Dose Dependency of Dynamic Time-Resolved 4D MRA of the Brain Using Golden-Angle Radial Sparse Parallel (GRASP) MRI

Adam Goldman-Yassen^1,2, Vishal Patel³, Maria J. Borja³, Anna Derman⁴, Duan Chen⁵, Siddhant Dogra³, Roy Wiggins³, Kai Tobias Block³, and Seena Dehkharghani^3,6

¹Department of Radiology, Children's Healthcare of Atlanta, Atlata, GA, United States, ²Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, United States, ³Department of Radiology, New York University Langone Medical Center, New York, NY, United States, ⁴Department of Radiology, Maimonides Medical Center, Brooklyn, NY, United States, ⁵Department of Radiology, Weill Cornell Medical Center, New York, NY, United States, ⁶Department of Neurology, New York University Langone Medical Center, New York, NY, United States

Synopsis

GRASP MRI obtained as part of routine clinical care, without specific angiographic parameters, can be reconstructed post-hoc into dynamic 4D MR images and can be displayed with high spatial and temporal resolution. Additionally, contrast dose and magnet strength appear to have minimal effect on the diagnostic quality of angiographic images. Further exploration into diagnostic accuracy and the tolerance of varying field strength and dosing to further increasing degrees of acceleration is warranted.

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