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  • Title: Digital tomosynthesis aided by low-resolution exact computed tomography.
    Author: Zeng K, Yu H, Zhao S, Fajardo LL, Ruth C, Jing Z, Wang G.
    Journal: J Comput Assist Tomogr; 2007; 31(6):976-83. PubMed ID: 18043366.
    Abstract:
    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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