TY - GEN
T1 - Atlas-based segmentation for globus pallidus internus targeting on low-resolution MRI
AU - Iacono, Maria I.
AU - Makris, Nikos
AU - Mainardi, Luca
AU - Gale, John
AU - Van Der Kouwe, Andre
AU - Mareyam, Azma
AU - Polimeni, Jonathan R.
AU - Wald, Lawrence L.
AU - Fischl, Bruce
AU - Eskandar, Emad N.
AU - Bonmassar, Giorgio
PY - 2011
Y1 - 2011
N2 - In this paper we report a method to automatically segment the internal part of globus pallidus (GPi) on the pre-operative low-resolution magnetic resonance images (MRIs) of patients affected by Parkinson's disease. Herein we used an ultra-high resolution human brain dataset as electronic atlas of reference on which we segmented the GPi. First, we registered the ultra-high resolution dataset on the low-resolution dataset using a landmarks-based rigid registration. Then an affine and a non-rigid surface-based registration guided by the structures that surround the target was applied in order to propagate the labels of the GPi on the low-resolution un-segmented dataset and to accurately outline the target. The mapping of the atlas on the low-resolution MRI provided a highly accurate anatomical detail that can be useful for localizing the target.
AB - In this paper we report a method to automatically segment the internal part of globus pallidus (GPi) on the pre-operative low-resolution magnetic resonance images (MRIs) of patients affected by Parkinson's disease. Herein we used an ultra-high resolution human brain dataset as electronic atlas of reference on which we segmented the GPi. First, we registered the ultra-high resolution dataset on the low-resolution dataset using a landmarks-based rigid registration. Then an affine and a non-rigid surface-based registration guided by the structures that surround the target was applied in order to propagate the labels of the GPi on the low-resolution un-segmented dataset and to accurately outline the target. The mapping of the atlas on the low-resolution MRI provided a highly accurate anatomical detail that can be useful for localizing the target.
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U2 - 10.1109/IEMBS.2011.6091381
DO - 10.1109/IEMBS.2011.6091381
M3 - Conference contribution
C2 - 22255635
AN - SCOPUS:84862280688
SN - 9781424441211
T3 - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
SP - 5706
EP - 5709
BT - 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
T2 - 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 2011
Y2 - 30 August 2011 through 3 September 2011
ER -