X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2008-06-11
2010-12-07
Glick, Edward J (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S015000
Reexamination Certificate
active
07848479
ABSTRACT:
Methods, apparatus and systems for an exact filtered back projection process for circle-plus trajectories, which consist of two components: C and L. The first component C, is analogous to a circle in the traditional circle-plus trajectories, is any closed (not necessarily planar) continuous curve. The second component L is almost any continuous curve. The only condition is that L starts below C and ends above C. The process does not depend on the global properties of L. When the source is located on L, one needs to know only how C projects onto the corresponding detector and the properties of L in the immediate neighborhood of the source position. The present invention is especially convenient for the traditional circle-plus trajectories, which are implemented using a gantry and moving table by obtaining a universal FBP algorithm, which is independent of table movement during the scan as long as the condition on L is satisfied.
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Glick Edward J
Law Offices of Brian S. Steinberger , P.A.
Steinberger Brian S.
Taningco Alexander H
University of Central Florida Research Foundation Inc.
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