A directional total variation minimization algorithm for isotropic resolution in digital breast tomosynthesis
Fuente:
arXiv
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| Autores principales: | , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866914831705047040 |
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| author | Sidky, Emil Y. Wu, Xiangyi Duan, Xiaoyu Huang, Hailing Zhao, Wei Zhang, Leo Y. Phillips, John Paul Zhang, Zheng Chen, Buxin Xia, Dan Reiser, Ingrid S. Pan, Xiaochuan |
| author_facet | Sidky, Emil Y. Wu, Xiangyi Duan, Xiaoyu Huang, Hailing Zhao, Wei Zhang, Leo Y. Phillips, John Paul Zhang, Zheng Chen, Buxin Xia, Dan Reiser, Ingrid S. Pan, Xiaochuan |
| contents | An optimization-based image reconstruction algorithm is developed for contrast enhanced digital breast tomosynthesis (DBT) using dual-energy scanning. The algorithm minimizes directional total variation (TV) with a data discrepancy and non-negativity constraints. Iodinated contrast agent (ICA) imaging is performed by reconstructing images from dual-energy DBT data followed by weighted subtraction. Physical DBT data is acquired with a Siemens Mammomat scanner of a structured breast phantom with ICA inserts. Results are shown for both directional TV minimization and filtered back-projection for reference. It is seen that directional TV is able to substantially reduce depth blur for the ICA objects. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_07306 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A directional total variation minimization algorithm for isotropic resolution in digital breast tomosynthesis Sidky, Emil Y. Wu, Xiangyi Duan, Xiaoyu Huang, Hailing Zhao, Wei Zhang, Leo Y. Phillips, John Paul Zhang, Zheng Chen, Buxin Xia, Dan Reiser, Ingrid S. Pan, Xiaochuan Medical Physics An optimization-based image reconstruction algorithm is developed for contrast enhanced digital breast tomosynthesis (DBT) using dual-energy scanning. The algorithm minimizes directional total variation (TV) with a data discrepancy and non-negativity constraints. Iodinated contrast agent (ICA) imaging is performed by reconstructing images from dual-energy DBT data followed by weighted subtraction. Physical DBT data is acquired with a Siemens Mammomat scanner of a structured breast phantom with ICA inserts. Results are shown for both directional TV minimization and filtered back-projection for reference. It is seen that directional TV is able to substantially reduce depth blur for the ICA objects. |
| title | A directional total variation minimization algorithm for isotropic resolution in digital breast tomosynthesis |
| topic | Medical Physics |
| url | https://arxiv.org/abs/2406.07306 |