Elimination of nonpivotal plane images from x-ray motion tomograms.

Elimination of nonpivotal plane images from x-ray motion tomograms. Research Abstract Details 

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Elimination of nonpivotal plane images from x-ray motion tomograms. Abstract Text:

S Kawata,J Sklansky,

A method for eliminating the contribution of nonpivotal plane images into a conventional X-ray motion tomogram is described. A set of tomograms, each focused on one of distinct parallel planes, are combined to form a blur-free tomogram. From the mathematical analysis of conventional tomography, it is found that the multisection tomography system reduces to a three-dimensional incomplete linear system with angularly limited frequency response. An iterative constrained reconstruction algorithm incorporating the object boundary constraint is used for reconstruction of a blur-free tomogram without a contribution from nonpivotal planes. Some computer simulations were made for verification of the algorithm. Although the algorithm accomplishes the three-dimensional reconstruction of volume rather than image restoration of a single slice plane, the optimal high-pass spatial filter applying to a single tomogram is derived on the way to solving the inverse problem of the multisection tomography system.

Elimination of nonpivotal plane images from x-ray motion tomograms. Publishing Authors By Initials

S Kawata,J Sklansky,

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Elimination of nonpivotal plane images from x-ray motion tomograms. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: IEEE transactions on medical imaging

VOLUME: 4

Page Numbers: 153-9

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ISSN: 0278-0062

DAY: 4

MONTH: 02

YEAR: 1985

Elimination of nonpivotal plane images from x-ray motion tomograms. Information

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LANGUAGE: eng

NlmUniqueID: 8310780

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Country: United States

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MEDLINETA: IEEE Trans Med Imaging

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