Coordinate registration system for dual modality imaging systems
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United States of America Patent
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Issued Date -
Nov 13, 2003
app pub date -
Oct 1, 2002
filing date -
Oct 1, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of determining linear and angular displacements of a first coordinate system of a field of view of a first imaging system relative to a second a coordinate system of a field of view of a second imaging system, the method comprising: providing a phantom having a plurality of fiducial regions that can be imaged by both imaging systems; acquiring first and second images of the phantom with the first and second imaging systems wherein spatial coordinates of features in the first and second images reference the first and second coordinate systems respectively; determining positions of a plurality of features of the fiducials in the first image and spatial coordinates of the same features in the second image; and using the coordinates to determine the linear and angular displacements.
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