X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Patent
1993-09-10
1995-12-12
Porta, David P.
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
378 8, 378 11, 378901, 36441315, A61B 603, G01N 2308
Patent
active
054757266
ABSTRACT:
Process and installation making it possible to reconstitute precise images of an area of interest (2) of an object (1) by reducing the errors produced by the contribution of the compliment of the object. A first series of measurements is carried out, where a conical beam (10) only takes in the area of interest of the object (2) and this is followed by a second series of measurements in which the beam takes in the entire object. A combination of the measurements of the two series is carried out in order to make them compatible and obtain a more accurate image of the area of interest (2).
REFERENCES:
patent: 3973128 (1976-08-01), LeMay
patent: 5068882 (1991-11-01), Eberhard
patent: 5319693 (1994-06-01), Eberhard et al.
patent: 5355309 (1994-11-01), Eberhard et al.
patent: 5376795 (1994-12-01), Hasegawa et al.
Applied Optics (vol. 23--No. 22, Nov. 1984), Ohyama et al., New York, "Analysis and Improvement in Region-of-Interest Tomography" pp. 4105-4110.
Physics in Medicine and Biology (vol. 37--No. 3, Mar. 1992), Manglos, "Truncation Artifact Suppression in cone-beam radionuclide Transmission CT using maximum likelihood techniques: evaluation with human subjects" pp. 549-562.
Numerische Mathematik (vol. 56--No. 4, 1989), R. S. Varga, editor, "Incomplete Data Problems in X-Ray Computerized Tomography", Louis et al. pp. 371-383.
IEEE Transactions on Medical Imaging (vol. MI-3--No. 1, Mar. 1984, USA) "A Reconstruction Algorithm from Truncated Projections", Ogawa et al. p. 34-40.
Azevedo Stephen
Grangeat Pierre
Rizo Philippe
Bruce David Vernon
Commissariat a l''Energie Atomique
Porta David P.
LandOfFree
Process for the reconstruction of three-dimensional images of an does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the reconstruction of three-dimensional images of an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the reconstruction of three-dimensional images of an will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1366773