| Autor: |
Hélèñe, Langet, Cyril, Riddell, Yves, Trousset, Arthur, Tenenhaus, Elisabeth, Lahalle, Gilles, Fleury, Nikos, Paragios |
| Rok vydání: |
2013 |
| Předmět: |
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| Zdroj: |
Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention. 15(Pt 1) |
| Popis: |
This work tackles three-dimensional reconstruction of tomographic acquisitions in C-arm-based rotational angiography. The relatively slow rotation speed of C-arm systems involves motion artifacts that limit the use of three-dimensional imaging in interventional procedures. The main contribution of this paper is a reconstruction algorithm that deals with the temporal variations due to intra-arterial injections. Based on a compressed-sensing approach, we propose a multiple phase reconstruction with spatio-temporal constraints. The algorithm was evaluated by qualitative and quantitative assessment of image quality on both numerical phantom experiments and clinical data from vascular C-arm systems. In this latter case, motion artifacts reduction was obtained in spite of the cone-beam geometry, the short-scan acquisition, and the truncated and subsampled data. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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