X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2004-07-07
2009-06-09
Glick, Edward J (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S004000, C382S294000
Reexamination Certificate
active
07545903
ABSTRACT:
In the CT imaging of non-homogeneously moving objects such as the heart or the coronary vessel tree, there is a problem that different parts of the objects are at rest at different points in time. Thus, a gated reconstruction with a globally selected time point does not yield a sharp image of such objects. According to the present invention, a motion of the objects is estimated, describing the motion of selected regions of these objects. Then, on the basis of the estimated motion, time points are determined, where these areas have minimal motion. Then, an image is reconstructed, wherein the data from which the respective regions are reconstructed, correspond to the respective time points, where the regions have minimal motion. Due to this, an improved image qualify maybe provided.
REFERENCES:
patent: 5262946 (1993-11-01), Heuscher
patent: 5396418 (1995-03-01), Heuscher
patent: 5485493 (1996-01-01), Heuscher et al.
patent: 5544212 (1996-08-01), Heuscher
patent: 5751782 (1998-05-01), Yoshitome
patent: 6047080 (2000-04-01), Chen et al.
patent: 6154516 (2000-11-01), Heuscher et al.
patent: 6353653 (2002-03-01), Edic
patent: 6381487 (2002-04-01), Flohr et al.
patent: 6385285 (2002-05-01), Vaillant et al.
patent: 6426990 (2002-07-01), Cesmeli
patent: 6529575 (2003-03-01), Hsieh
patent: 2002/0032376 (2002-03-01), Miyazaki et al.
patent: 101 18 143 (2001-10-01), None
patent: 1 072 224 (2001-01-01), None
patent: WO 02103639 (2002-12-01), None
Kachelriess et al., ECG-Correlated Imaging Reconstruction from subsecond multi-slice spiral CT scans of the heart, 2000, Medical Physics, vol. 27, No. 8, pp. 1881-1902.
Chen et al., Kinematic and Deformation Analysis of 4-D Coronary Arterial Trees Reconstructed From Cine Angiograms, Jun. 2003, IEEE, vol. 22, No. 6, pp. 710-721.
Grangeat et al., Theoretical framework for a dynamic cone-beam reconstruction algorithm based on a dynamic particle model, Jul. 17, 2002, Phys. Med. Biol., vol. 47, pp. 2611-2625.
Saito et al., Real-Time Four-dimensional Imaging of the Heart with Multi-Detector Row CT, Oct. 14, 2002, RadioGraphics, Published online, http://radiographics.rsnajnls.org/cgi/content/abstract/23/1/e8?maxtoshow=&HITS=20&hits=20&RESULTFORMAT=&searchid=1&FIRSTINDEX=0&displaysectionid=Online-only+Exhibits&resourcetype=HWCIT.
Weruaga et al., Estimating Volumetric Motion in Human Thorax with Parametric Matching Constraints, Jun. 2003, IEEE Transactions on Medical Imaging, vol. 22, No. 6, pp. 766-772.
Buzug et al., Voxel-Based Similarity Measures for Medical Image Registration in Radiological Diagnosis and Image Guided Surgery, 1998, Journal of Computing and Information Technology, vol. 2, pp. 165-179.
Gorce et al., Estimation of three-dimensional cardiac velocity fields: assessment of a differential method and application to three-dimensional CT data, 1996, Medical Image Analysis, vol. 1, No. 3, pp. 245-261.
Brown, A Survey of Image Registration Techniques, 1992, ACM Computing Surveys, vol. 24, No. 4, pp. 325-376.
Manzke et al., Extended Cardiac Reconstruction (ECR): A helical cardiac cone reconstruction method, Jun. 30, 2003, Proceedings of the VIIth International Conference on Fully 3D Reconstruction in Radiology and Nuclear Medicine, Presentation ID No. MO-PM2-4.
Grass, M., et al.; A Projection-Based Method for Motion-Compensated Noise Suppression; 1998; Philips J. of Research; 51(2)283-298.
Kalender, W.A.; Computed Tomography:Fundamentals, System Technology, Image Quality, Applications; 2000; Publics MCD Verlag; pp. 78-81.
Schaffter, T., et al., Motion Compensated Projection Reconstruction; 1999; MRM; 41:954-963.
Taguchi, K., et al.; High temporal resolution for multislice helical computed tomography; 2000; Med. Phys.; 27(5)861-872.
Grass Michael
Kähler Thomas
Kuhn Michael Harald
Proksa Roland
Corbett John M
Glick Edward J
Koninklijke Philips Electronics , N.V.
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