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System and method for blood vessel bifurcation detection in thoracic CT scans
System and method for blood vessel bifurcation detection in thoracic CT scans
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机译:胸部CT扫描中血管分叉检测的系统和方法
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摘要
A method for detecting blood vessel bifurcations in digital medical images includes inflating a sphere from a first center point inside a segmented blood vessel until a surface of the sphere intersects a surface of the blood vessel, searching within the inflated sphere for a second center point that has a sphere intersecting a surface of the blood with a maximum radius, assigning all voxels of the maximal radius sphere to a root node of a shape-tree, increasing the radius of the maximal radius sphere and computing a voxel difference set with respect to the previous maximal radius sphere, computing one or more connected components Cm in the voxel difference set, assigning voxels of each connected components to a different child node of the shape tree, connecting each child node with the root node, and calculating features from the shape tree for training a classifier to detect blood vessel bifurcations.
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机译:一种用于检测数字医学图像中血管分叉的方法,该方法包括从分段血管内部的第一个中心点开始向球体充气,直到球体的表面与血管表面相交,然后在膨胀的球体内搜索第二个中心点,拥有一个与血液表面相交的半径最大的球体,将最大半径球体的所有体素分配给形状树的根节点,增加最大半径球体的半径并计算相对于最大半径球体的体素差集以前的最大半径球体,计算体素差异集中的一个或多个连接的分量C m Sub>,将每个连接的分量的体素分配给形状树的不同子节点,将每个子节点与根节点连接,并从形状树中计算特征,以训练分类器检测血管分叉。
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