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- W2090086358 abstract "Digital Subtraction Angiography (DSA) is a well-established powerful modality for the visualization of stenosis and blood vessels in general. This paper presents two novel approaches which address image quality. In the first approach we combine anisotropic diffusion with nonlinear normalization. The second approach consists of an introduction of a regularization strategy followed by a classification procedure to improve the enhancement. The performances of two strategies are evaluated based on a database of 73 subjects using SNR, CNR and Tenengrad's metric. Compared with conventional DSA, Eigen's diffusion embedded nonlinear enhancement strategies can improve image quality <b>95.25%</b> in terms of SNR. The regularization embedded linear enhancement strategy can also improve SNR <b>51.46%</b> compared with conventional DSA. Similar results are obtained by CNR and Tenengrad's metric measurements. Our system runs on a PC-based workstation using C++ in Windows environment." @default.
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- W2090086358 date "2008-03-06" @default.
- W2090086358 modified "2023-09-27" @default.
- W2090086358 title "Clinical validation and performance evaluation of enhancement methods acquired from interventional C-ARM x-ray" @default.
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- W2090086358 doi "https://doi.org/10.1117/12.770734" @default.
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