X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2006-04-11
2006-04-11
Bruce, David V (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S008000, C378S901000
Reexamination Certificate
active
07027552
ABSTRACT:
CT scanner is disclosed for providing an image of a region comprising: at least one X-ray cone beam for illuminating mthe region with X-rays; a plurality of rows of X-ray detectors that generate signals responsive to line attenuation of X-rays from the at least one controller that controls providing an image of a region comprising: at least one X-ray cone beam for illuminating the region with X-rays; a plurality of rows of X-ray detectors that generate signals responsive to line attenuation of X-rays from the at least one X-ray source that pass through the region; a controller that controls the at least one X-ray cone beam to acquire line attenuation data for the region for different view angles of the region; and a processor that receives the signals and: a) determines low spatial frequency components of the image from the data; b) generates a first spatial image of the region from the low high spatial frequency components of the image from the data; d) generates a second spatial image of the region from the high frequency components; and e) combines the first and second images to generate the CT image.
REFERENCES:
patent: 5416815 (1995-05-01), Hsieh
patent: 5475726 (1995-12-01), Azevedo et al.
patent: 5802134 (1998-09-01), Larson et al.
patent: 2003/0081821 (2003-05-01), Mertelmeier et al.
patent: 2 655 751 (1991-06-01), None
Sahiner, B., et al.; Time-frequency distribution inversion of the Radon transform; IEEE Nuc. Sci. Symposium; 1991; pp. 2043-2047.
Kachelriess, et al.; Advanced Single-Slice Rebinning in Cone-Beam Spiral CT; Medical Physics; 2000; 27;4: 754-772.
Wang, et al.; A General Cone-Beam Reconstruction Algorithm; IEEE Trans. on Medical Imaging; 1993; 12:486-496.
Bruce David V
Koninklijke Philips Electronics , N.V.
Lundin Thomas M.
LandOfFree
High resolution CT scanner does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High resolution CT scanner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High resolution CT scanner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3617739