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- W2032162561 abstract "Parametric model-based approaches to 3-D reconstruction of vessels overcome the inherent problem of underdeterminancy in reconstruction from limited views by incorporating a priori knowledge about the structure of vessels and about the measurement statistics. In this paper, we describe two extensions to the parametric approach. First, we consider the problem of reconstruction from a pair of bi-plane angiograms that are acquired at different projection angles. Since bi-plane angiography systems are widely available, this is a practical measurement geometry. The patient may move between acquisitions, so we have extended our model to allow for object translation between the first and second pair of projections. Second, we describe how to accurately estimate the dimensions of a aneurysm from the dual-biplane angiogram. We applied the new algorithm to four synthetic angiograms (projection angles 0°, 20°, 90°, and 110°) of a vessel with a small aneurysm and an eccentric stenosis. The angiograms were corrupted by additive noise and background structure. Except near the top and bottom of the aneurysm, the estimated cross sections of the aneurysm and stenosis agree very well with the true cross sections." @default.
- W2032162561 created "2016-06-24" @default.
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- W2032162561 date "1989-05-25" @default.
- W2032162561 modified "2023-10-05" @default.
- W2032162561 title "3-D Reconstruction Of Vessels With Stenoses And Aneurysms From Dual Bi-Plane Angiograms" @default.
- W2032162561 doi "https://doi.org/10.1117/12.953241" @default.
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