发明名称 |
SYSTEMS AND METHODS FOR AUTOMATIC SYMMETRY IDENTIFICATION AND FOR QUANTIFICATION OF ASYMMETRY FOR ANALYTIC, DIAGNOSTIC AND THERAPEUTIC PURPOSES |
摘要 |
Methods and related computational techniques are presented for analyzing images from various scan modalities, such as computerized tomography ("CP'). The methods convert image values to relative differences, to highlight side-to-side asymmetry. The conversion may be performed by comparing a small region of the scan to the corresponding region in the contralateral hemisphere, quantifying the degree of relative difference using statistical techniques, and representing this quantity of relative difference in a two dimensional or three dimensional relative difference map. In exemplary embodiments the method involves assigning an axis or plane of symmetry to a medical image, computing, using the image data, at least one relative difference map based on a comparison of two substantially symmetrical areas around the 'axis of symmetry, and generating a representation of any relative difference between the two symmetrical areas. In exemplary embodiments of the present invention the 3D orientation of a volumetric representation of an organ or anatomical area can be realigned within a scanner co-ordinate system. |
申请公布号 |
WO2007095284(A3) |
申请公布日期 |
2008.12.18 |
申请号 |
WO2007US03897 |
申请日期 |
2007.02.12 |
申请人 |
THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK;IMIELINSKA, CELINA;SUGHRUE, MICHAEL;LIU, XIN;D'AMBROSIO, ANTHONY |
发明人 |
IMIELINSKA, CELINA;SUGHRUE, MICHAEL;LIU, XIN;D'AMBROSIO, ANTHONY |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
代理机构 |
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地址 |
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