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    • 8. 发明申请
    • METHOD FOR DETERMINING ARTICULAR BONE DEFORMITY RESECTION USING MOTION PATTERNS
    • 使用运动模式确定骨骼畸形检测的方法
    • US20130085723A1
    • 2013-04-04
    • US13704063
    • 2011-07-16
    • Laurence ChabanasStéphane LavalleeJerome TonettiThomas ByrdBryan Talmadge KellyChristopher Larson
    • Laurence ChabanasStéphane LavalleeJerome TonettiThomas ByrdBryan Talmadge KellyChristopher Larson
    • G06F19/26
    • G16B45/00G06T17/00G06T19/20G06T2210/21G06T2210/41G06T2219/2021
    • The invention relates to a method for real-time determination an optimal corrected surface of a first bone and/or a second bone forming together an articulation, the first and/or second bones presenting an overgrowth deformation, said corrected surface providing a greater range of motion of the articulation, the method comprising the following steps: i) constructing from acquired images of the articulation 3D voxel models of the first bone and the second bone; ii) for each of first and second bone voxel models, constructing a coordinate system defmed by a center and three axes; iii) applying a motion pattern on the coordinate system of the second bone with respect to the coordinate system of the first bone, a motion pattern being a set of contiguous positions of the first or second bone coordinate systems with respect to the other bone coordinate system, the contiguous positions defining a movement of one bone with respect to the other, wherein said motion pattern is initially loaded from a data base of pre-defined motion patterns; iv) determining a resection volume from said motion pattern as being the union of interpenetration volumes of the first or second bone voxel model with the other bone voxel model for each position of the motion pattern; v) determining the optimal corrected surface by virtually removing said resection volume from the first and/or the second bone voxel model.
    • 本发明涉及一种用于实时确定第一骨骼和/或第二骨骼的最佳校正表面的方法,所述第一骨骼和/或第二骨骼一起形成关节,第一和/或第二骨骼呈现过度生长变形,所述校正表面提供更大范围的 所述方法包括以下步骤:i)从所述第一骨骼和所述第二骨骼的关节3D体素模型的获取图像构建; ii)对于第一和第二骨骼体素模型中的每一个,构造由中心和三个轴定义的坐标系; iii)相对于第一骨骼的坐标系在第二骨骼的坐标系上施加运动模式,运动模式是第一或第二骨坐标系相对于另一骨坐标系的一组连续位置 所述连续位置限定一个骨骼相对于另一个骨骼的运动,其中所述运动模式最初从预先定义的运动模式的数据库加载; iv)将所述运动模式的切除体积确定为所述运动模式的每个位置的所述第一或第二骨骼体素模型与所述另一骨体素模型的相互渗透体积的联合; v)通过从第一和/或第二骨骼体素模型中虚拟去除所述切除体积来确定最佳校正表面。