Dual-energy cone-beam micro-CT for animal imaging: preliminary study
We have recently developed a prototype cone-beam micro-CT system for studying new image reconstruction
algorithms experimentally as well as for small animal imaging. Dual energy methods have widely been investigated
and applied for eliminating beam hardening artifacts in the reconstructed images and for performing quantitative CT.
We have proposed earlier a pre-reconstruction-type dual energy method which has the advantage that the cone-beam
CT data from two measurements with different x-ray energy spectra are first processed to obtain quantities that are
approximately consistent with the x-ray transform, and then image reconstruction is performed. In this work, the
proposed method is applied to the cone-beam micro-CT data acquired by our prototype system. Only the thickness
maps of the object based on projection images are shown in this work as a preliminary.
This paper was published in SPIE Proceedings Vol. 6510