MRI Modality transformation in demon registration


Kroon, Dirk-Jan and Slump, Cornelis H. (2009) MRI Modality transformation in demon registration. In: IEEE International Symposium on Biomedical Imaging, ISBI '09, 28 June - 1 July 2009, Boston, MA (pp. pp. 963-966).

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Abstract:Nonrigid local image registration plays an important role in medical imaging. In this paper we focus on demon registration which is introduced by Thirion [1], and is comparable to fluid registration. Because demon registration cannot deal with multiple MRI modalities, we introduce a MRI modality transformation which changes the representation of a T1 scan into a T2 scan using the peaks in a joint histogram. We compare the performance between demon registration with modality transformation, demon registration with gradient images and Rueckerts [2] B-spline based free form deformation method in combination with mutual information. For this test we use perfectly aligned T1 and T2 slices from the BrainWeb database [3], which we local spherically distort. In conclusion demon registration with modality transformation gives the smallest registration errors, in case of local large spherical distortions and small bias fields.
Item Type:Conference or Workshop Item
Copyright:© 2009 IEEE
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