Abstract
A new computed tomography using Imaging-plate (IP) and incomplete projection data is hereby presented. In this system, Imaging-plates with wide dynamic range were used as 2-dimensional X-ray detectors. Projection data were acquired along the mandibular bone. The author called this data “ Projection data along the mandibular bone” for convenience in this study. An algebraic iteration method was used for the image reconstruction. The maximum Likelihood method (EM method), which had been developed by Shepp and Vardi, was modified to take into account the geometry of this experimental system.
Using this system, sequential 5 transverse sectional images of a dry mandibular bone could be reconstructed in one scanning. Considering the inaccurate mechanics of the experimental system and small number of projections, the quality of the obtained image was considered fairly good. These results suggested the possibility of the new computed tomography using Imaging-plate and incomplete projection data.
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Morita, Y. A new computed tomography using imaging-plate and incomplete projection data. Oral Radiol. 8, 41–48 (1992). https://doi.org/10.1007/BF02347809
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DOI: https://doi.org/10.1007/BF02347809