Abstract #1763

Abdominal MRI at 0.55 T: Initial evaluation and optimization in healthy subjects

Anupama Ramachandran¹, Hero Hussain¹, Mishal Mendiratta Lala², Jacob Richardson³, Nancy Dudek², Joel Morehouse², Katherine Wright⁴, Vikas Gulani³, and Nicole Seiberlich³

¹Radiology, University of Michigan, Ann Arbor, MI, United States, ²University of michigan, Ann arbor, MI, United States, ³Radiology, University of michigan, Ann arbor, MI, United States, ⁴University of Michigan, Ann arbor, MI, United States

Synopsis

Keywords: Low-Field MRI, Body, AbdomenAbdominal MRI including MRCP was performed in 15 healthy subjects on both a 0.55T and a 1.5T MR system. Image quality (IQ) was rated by two radiologists (22 and 17 yrs experience). All sequences were rated acceptable at 0.55T. In comparison to 1.5T, IQ scores at 0.55T were higher for DWI and 3D MRCP, and lower for the other sequences. Acquisition times were longer at 0.55T for all sequences except 3D MRCP. Thus, acceptable quality abdominal images can be obtained on a commercial 0.55T system with slightly lower IQ ratings of some of the sequences compared to 1.5T.

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