X-ray or gamma ray systems or devices – Specific application – Absorption
Reexamination Certificate
2011-01-18
2011-01-18
Glick, Edward J (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Absorption
C378S004000, C378S098120, C378S146000
Reexamination Certificate
active
07873142
ABSTRACT:
Imaging apparatus comprises a radiation source arranged to generate a divergent imaging beam and an associated radiation detector mounted on a C-arm which can rotate. A first drive is arranged to move the radiation source and the detector relative to a subject in a scanning direction to generate output signals from the detector, thereby performing a scan generating image data containing distortion in a direction transverse to the scanning direction. A second drive is arranged to rotate the C-arm, to change the orientation of the radiation source in a direction transverse to the scanning direction incrementally between repeated scans, thereby to generate a plurality of sets of image data. A processor, which can be a PC or a dedicated processor, is provided for processing each set of image data to obtain equivalent parallel imaging beam data therefrom, corresponding to a given angle in the divergent imaging beam, and for combining a plurality of said equivalent parallel imaging beam data to generate a synthesized parallel imaging beam image. The apparatus includes a display for generating a visual display of the synthesized parallel imaging beam image. The resulting synthesized image has the distortion removed and measurements can be made from the image. The invention extends to a method carried out with the apparatus.
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Beets Matthew Paul
Jager Gerhardus De
Nicolls Frederick Charles
Artman Thomas R
Buchanan & Ingersoll & Rooney PC
Glick Edward J
Lodox Systems (Proprietary) Limited
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