Abstract #1300

Reproducibility of brain ultrashort-T2* component measurements in healthy volunteers

Nikhil Deveshwar^1,2 and Peder E. Z. Larson^1,2

¹Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, United States, ²UC Berkeley - UCSF Graduate Program in Bioengineering, Berkeley and San Francisco, CA, United States

This work presents a study detailing the reproducibility of ultrashort-T₂* measurements using a novel UTE relaxometry method. Generated parameter maps show similar looking structures in terms of intensity and definition. Furthermore, the distributions of the ultrashort-T₂* fractional component in various brain ROIs show similar distributions and have low coefficients of variance. These results suggest the proposed UTE relaxometry method is reproducible and can reliably measure parameters of the brain ultrashort-T₂* component.

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