3D Graph Description of the Intracerebral Vasculature from Segmented MRA and Tests of Accuracy by Comparison with X-ray Angiograms
3D Graph Description of the Intracerebral Vasculature from Segmented MRA and Tests of Accuracy by Comparison with X-ray Angiograms
复制标题
分段 MRA 的脑内脉管系统 3D 图形描述以及通过与 X 射线血管造影比较进行的准确性测试
DOI:
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
S. Pizer
中科院分区:
文献类型:
--
作者:
E. Bullitt;S. Aylward;Alan Liu;J. Stone;S. Mukherji;C. Coffey;G. Gerig;S. Pizer
This paper describes largely automated methods of creating connected, 3D vascular trees from individual vessels segmented from magnetic resonance angiograms. Vessel segmentation is initiated by user-supplied seed points, with automatic calculation of vessel skeletons as image intensity ridges and automatic estimation of vessel widths via medialness calculations. The tree-creation process employs a variant of the minimum spanning tree algorithm and evaluates image intensities at each proposed connection point. We evaluate the accuracy of nodal connections by registering a 3D vascular tree with 4 digital subtraction angiograms (DSAs) obtained from the same patient, and by asking two neuroradiologists to evaluate each nodal connection on each DSA view. No connection was judged incorrect. The approach permits new, clinically useful visualizations of the intracerebral vasculature.
DOI:
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发表时间:
1997
期刊:
AJNR. American journal of neuroradiology
影响因子:
--
作者:
Bullitt,E;Liu,A;Aylward,S;Soltys,M;Rosenman,J;Pizer,SM
通讯作者:
Pizer,SM
影响因子:
3.8
作者:
Bullitt,E;Liu,A;Pizer,SM
通讯作者:
Pizer,SM
影响因子:
3.8
作者:
Bullitt,E;Liu,A;Pizer,SM
通讯作者:
Pizer,SM