Image analysis – Applications – Biomedical applications
Reexamination Certificate
2008-02-21
2011-11-08
Bella, Matthew (Department: 2624)
Image analysis
Applications
Biomedical applications
C382S275000
Reexamination Certificate
active
08055039
ABSTRACT:
In dual energy CT, through basis material decomposition (BMD), a pair of density images can be reconstructed. The noises in this image pair are negatively correlated due to the BMD process. A technique is presented for obtaining the monochromatic images at desired energy levels with reduced correlation noise. The technique includes obtaining a plurality of optimum attenuation coefficients for an energy level, selecting a desired energy level, obtaining a plurality of desired attenuation coefficients for the desired energy level, computing a scaling factor for a corresponding noise component based on the optimum attenuation coefficients and the desired attenuation coefficients, and generating a monochromatic image based upon the scaling factor.
REFERENCES:
patent: 5115394 (1992-05-01), Walters
patent: 5461655 (1995-10-01), Vuylsteke et al.
patent: 5682036 (1997-10-01), Hines et al.
patent: 6016333 (2000-01-01), Kalvin
patent: 6197278 (2001-03-01), Blankenberg et al.
patent: 6737652 (2004-05-01), Lanza et al.
patent: 6909459 (2005-06-01), Watson et al.
patent: 7031551 (2006-04-01), Yano et al.
patent: 7480365 (2009-01-01), Topfer et al.
patent: 7737406 (2010-06-01), Vija et al.
patent: 2004/0101088 (2004-05-01), Sabol et al.
Weinsaft et al., Diagnostic Impact of SPECT Image Display on Assessment of Obstructive Coronary Artery Disease, Sep.-Oct. 2007, Journal of Nuclear Cardiology, vol. 14, Issue 5, pp. 659-668.
Hasegawa et al., Description of a Simultaneous Emission-Transmission CT System, 1990, SPIE: Medial Imaging IV: Image Formation, vol. 1231, pp. 50-60.
Kalender et al., An Algorithm for Noise Suppression in Dual Energy CT Material Density Images, Sep. 1988, IEEE Transactions on MEdical Imaging, vol. 7, No. 3, pp. 218-224.
Stenner et al., Automatic Exposure Control (AEC) for Dual Energy Computed Tomography (DECT), Oct. 26-Nov. 3, 2007, 2007 IEEE Nuclear Science Symposium Conference Record, pp. 4367-4372.
Stenner et al., Empirical dual energy calibration (EDEC) for cone-beam computed tomography, Sep. 2007, Medical Physics, vol. 34, Issue 9, pp. 3630-3641.
Kachelriess et al., Empirical Dual Energy Calibration (EDEC) for Cone-Beam Computed Tomography, Oct. 29-Nov. 1, 2006, 2006 IEEE Nuclear Science Symposium Conference Record, pp. 2546-2550.
Langan David Allen
LeBlanc James Walter
Wu Xiaoye
Bella Matthew
Fletcher Yoder P.C.
General Electric Company
Rosario Dennis
LandOfFree
System and method to obtain noise mitigated monochromatic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method to obtain noise mitigated monochromatic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method to obtain noise mitigated monochromatic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4259998