Image analysis – Applications – Biomedical applications
Reexamination Certificate
2007-09-06
2011-11-01
Mis, David (Department: 2817)
Image analysis
Applications
Biomedical applications
C382S128000, C128S922000
Reexamination Certificate
active
08050475
ABSTRACT:
A technique for detecting and localizing vascular occlusions in the brain of a patient is presented. The technique uses volumetric angiographic data of the brain. A mid-sagittal plane and/or lines is/are identified within the set of angiographic data. Optionally, the asymmetry of the hemispheres is measured, thereby obtaining an initial indication of whether an occlusion might be present. The angiographic data is mapped to pre-existing atlas of blood supply territories, thereby obtaining the portion of the angiographic data corresponding to each of the blood supply territories. For each territory (including any sub-territories), the asymmetry of the corresponding portion of the angiographic data about the mid-sagittal plane/lines is measured, thereby detecting any of the blood supply territory including an occlusion. The angiographic data for any such territory is displayed by a three-dimensional imaging technique.
REFERENCES:
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patent: 2004/0106864 (2004-06-01), Rose et al.
patent: 0156466 (2001-08-01), None
patent: 02065913 (2002-08-01), None
International Search Report PCT/SG2007/00292; Dated Nov. 17, 2007.
Wieslaw L. Nowinski, et al, “Analysis of Ischemic Stroke MR Images by Means of Brain Atlases of Anatomy and Blood Supply Territories”, Academic Radiology, vol. 13, No. 8, pp. 1025-1034, Aug. 2006.
Wieslaw L. Nowinski, et al, “Three-dimensional Atlas of the Brain Anatomy and Vasculature”, Informatics in Radiology (infoRAD), vol. 25, No. 1, pp. 263-271, Jan.-Feb. 2005.
Agency for Science Technology and Research
Cantor & Colburn LLP
Mis David
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