Abstract #2002

Automatic segmentation of thalamic nuclei from Multi-Echo MP2RAGE acquisition at 7T

Ritobrato Datta¹, Micky K Bacchus¹, Sudipto Dolui², Brenda L Banwell¹, and Manoj Saranathan³

¹Children's Hospital of Philadelphia, Philadelphia, PA, United States, ²University of Pennsylvania, Philadelphia, PA, United States, ³University of Arizona, Tucson, AZ, United States

The efficacy of the Thalamus Optimized Multi-Atlas Segmentation (THOMAS) algorithm for segmentation of thalamic nuclei with multi-echo MP2RAGE images is studied in 7T. 9 subjects are evaluated on thalamic nuclei delineated on WMn-MPRAGE and ME-MP2RAGE images. We demonstrate that the algorithm performs as well on ME-MP2RAGE as on WMn-MPRAGE images. This indicates that THOMAS can be used on more commonly acquired MP2RAGE for wider use.

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