X-ray or gamma ray systems or devices – Specific application – Radiation coding
Reexamination Certificate
2005-04-26
2005-04-26
Church, Craig E. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Radiation coding
Reexamination Certificate
active
06885724
ABSTRACT:
Systems and methods that utilize asymmetric geometry to acquire radiographic tomosynthesis images are described. Embodiments comprise tomosynthesis systems and methods for creating a reconstructed image of an object from a plurality of two-dimensional x-ray projection images. These systems comprise: an x-ray detector; and an x-ray source capable of emitting x-rays directed at the x-ray detector; wherein the tomosynthesis system utilizes asymmetric image acquisition geometry, where θ1≠θ0, during image acquisition, wherein θ1is a sweep angle on one side of a center line of the x-ray detector, and θ0is a sweep angle on an opposite side of the center line of the x-ray detector, and wherein the total sweep angle, θasym, is θasym=θ1+θ0. Reconstruction algorithms may be utilized to produce reconstructed images of the object from the plurality of two-dimensional x-ray projection images.
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Al-Khalidy Abdulrahman
Battle Vianney Pierre
Claus Bernhard Erich Hermann
Eberhard Jeffrey W.
Li Baojun
Artman Thomas R.
Bernard, Esq. Christopher L.
Church Craig E.
GE Medical Systems Global Technology Company LLC
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