Robust local appearance features for MRI brain structure segmentation across scanning protocols

Hakim C. Achterberg; Dirk H. J. Poot; Fedde van der Lijn; Meike W. Vernooij; M. Arfan Ikram; Wiro J. Niessen; Marleen de Bruijne

doi:10.1117/12.2006038

13 March 2013 Local appearance features for robust MRI brain structure segmentation across scanning protocols

Hakim C. Achterberg, Dirk H. J. Poot, Fedde van der Lijn, Meike W. Vernooij, M. Arfan Ikram, Wiro J. Niessen, Marleen de Bruijne

Author Affiliations +

Proceedings Volume 8669, Medical Imaging 2013: Image Processing; 866905 (2013) https://doi.org/10.1117/12.2006038
Event: SPIE Medical Imaging, 2013, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

Segmentation of brain structures in magnetic resonance images is an important task in neuro image analysis. Several papers on this topic have shown the benefit of supervised classification based on local appearance features, often combined with atlas-based approaches. These methods require a representative annotated training set and therefore often do not perform well if the target image is acquired on a different scanner or with a different acquisition protocol than the training images. Assuming that the appearance of the brain is determined by the underlying brain tissue distribution and that brain tissue classification can be performed robustly for images obtained with different protocols, we propose to derive appearance features from brain-tissue density maps instead of directly from the MR images. We evaluated this approach on hippocampus segmentation in two sets of images acquired with substantially different imaging protocols and on different scanners. While a combination of conventional appearance features trained on data from a different scanner with multi-atlas segmentation performed poorly with an average Dice overlap of 0.698, the local appearance model based on the new acquisition-independent features significantly improved (0.783) over atlas-based segmentation alone (0.728).

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Hakim C. Achterberg, Dirk H. J. Poot, Fedde van der Lijn, Meike W. Vernooij, M. Arfan Ikram, Wiro J. Niessen, and Marleen de Bruijne "Local appearance features for robust MRI brain structure segmentation across scanning protocols", Proc. SPIE 8669, Medical Imaging 2013: Image Processing, 866905 (13 March 2013); https://doi.org/10.1117/12.2006038

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