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Journal Articles Computerized Medical Imaging and Graphics Year : 2011

Constrained reverse diffusion for thick slice interpolation of 3D volumetric MRI images.

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Abstract

Due to physical limitations inherent in magnetic resonance imaging scanners, three dimensional volumetric scans are often acquired with anisotropic voxel resolution. We investigate several interpolation approaches to reduce the anisotropy and present a novel approach - constrained reverse diffusion for thick slice interpolation. This technique was compared to common methods: linear and cubic B-Spline interpolation and a technique based on non-rigid registration of neighboring slices. The methods were evaluated on artificial MR phantoms and real MR scans of human brain. The constrained reverse diffusion approach delivered promising results and provides an alternative for thick slice interpolation, especially for higher anisotropy factors.
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Dates and versions

inserm-00664034 , version 1 (28-01-2012)

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Aleš Neubert, Olivier Salvado, Oscar Acosta, Pierrick Bourgeat, Jurgen Fripp. Constrained reverse diffusion for thick slice interpolation of 3D volumetric MRI images.. Computerized Medical Imaging and Graphics, 2011, 36 (2), pp.130-138. ⟨10.1016/j.compmedimag.2011.08.004⟩. ⟨inserm-00664034⟩
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