Digital tomosynthesis aided by low-resolution exact computed tomography
Tomosynthesis reconstructs 3-dimensional images of an object from a significantly fewer number of projections as compared with that required by computed tomography (CT). A major problem with tomosynthesis is image artifacts associated with the data incompleteness. In this article, we propose a hybri...
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Published in | Journal of computer assisted tomography Vol. 31; no. 6; p. 976 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
01.11.2007
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Subjects | |
Online Access | Get more information |
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Summary: | Tomosynthesis reconstructs 3-dimensional images of an object from a significantly fewer number of projections as compared with that required by computed tomography (CT). A major problem with tomosynthesis is image artifacts associated with the data incompleteness. In this article, we propose a hybrid tomosynthesis approach to achieve higher image quality as compared with competing methods. In this approach, a low-resolution CT scan is followed by a high-resolution tomosynthesis scan. Then, both scans are combined to reconstruct images. To evaluate the image quality of the proposed method, we design a new breast phantom for numerical simulation and physical experiments. The results show that images obtained by our approach are clearly better than those obtained without such a CT scan. |
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ISSN: | 0363-8715 |
DOI: | 10.1097/rct.0b013e31803e8c1f |