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Abstract #0777

Optimized Strategies for 19 F MRI of Human Lungs and Comparison of UTE and Gradient Echo Imaging

Marcus J. Couch 1,2 , Iain K. Ball 2 , Tao Li 2 , Matthew S. Fox 2 , Alexei V. Ouriadov 2 , Birubi Biman 3,4 , and Mitchell S. Albert 1,2

1 Lakehead University, Thunder Bay, Ontario, Canada, 2 Thunder Bay Regional Research Institute, Thunder Bay, Ontario, Canada, 3 Thunder Bay Regional Health Sciences Centre, Thunder Bay, Ontario, Canada, 4 Northern Ontario School of Medicine, Thunder Bay, Ontario, Canada

19 F MRI of the lungs is a new pulmonary imaging modality that uses inhaled inert fluorinated gases as a signal source to acquire images of the lungs. The purpose of this study was to investigate optimized image acquisition strategies by optimizing and comparing UTE and gradient echo images in both a resolution phantom and healthy volunteers. Overall, UTE lung images had a higher SNR than gradient echo images, but also had poorer edge definition. On the other hand, gradient echo images had a lower SNR than UTE, but showed more edge detail and had a higher resolving power.

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