Image analysis – Applications – Biomedical applications
Patent
1997-10-22
1999-09-14
Johns, Andrew W.
Image analysis
Applications
Biomedical applications
378 7, G06K 900
Patent
active
059534443
ABSTRACT:
The method disclosed herein includes the steps of providing a computed tomography image having a base component, a first component of a first material, and a second component of a second material, the first and second materials causing beam hardening artifacts, segmenting the image into different sections, each section containing one of the artifact-causing components, calculating thickness of components in one of the sections, calculating a correction factor to compensate for artifacts created by the artifact-causing component in the section, and adding the correction factor to the image and additionally, the providing step may include the step of providing raw image data, which can then be converted into image data representative of the computed tomography image.
REFERENCES:
patent: 4144569 (1979-03-01), Wagner
patent: 4217641 (1980-08-01), Naparstek
patent: 4222104 (1980-09-01), Moore
patent: 4272820 (1981-06-01), Lux
patent: 5414622 (1995-05-01), Walters
patent: 5438602 (1995-08-01), Crawford et al.
patent: 5528644 (1996-06-01), Ogawa et al.
patent: 5644610 (1997-07-01), Crawford et al.
37th Annual Meeting, American Association of Physicists in Medicine, Joint Meeting with the Health Physics society, Hynes Convention Center, Boston, MA, Jul. 23-27, 1995.
Article, "Standardization of Computed Tomography Images by Means of a Material-Selective Beam Hardening Correction", P. Ruegsegger, Th. Hangartner, H.U. Keller, and Th. Hinderling, Journal of Computer Assisted Tomography, Apr. 1978, pp. 184-188.
Article, "An Improved Algorithm for Reprojecting Rays Through Pixel Images", Peter M. Joseph, IEEE Transactions on Medical Imaging, vol. MI-1, No. 3, Nov. 1982, pp. 192-196.
Article, "A Method for Simultaneous Correction of Spectrum Hardening Artifacts in CT Images Containing both Bone and Iodine", Peter M. Joseph and Christopher Ruth, Dept. of Radiology, University of Pennsylvania, Medical Physics, Oct. 21-22nd, 1997.
Abstract and Overhead presentation, "Simultaneous Correction of Bone and Contrast Beam Hardening Artifacts in CT", RSNA 1996, Scientific Program, Ruth, Peabody and Joseph, Dec. 1-6, 1996.
Joseph Peter M.
Ruth Christopher
Johns Andrew W.
University of Pennsylvania
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