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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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