Abstract
3D cross-sectional images of a breast can be obtained by using limited number of projection data taken from a limited angle with the Digital Breast Tomosynthesis (DBT), which is one of the breast cancer imaging techniques. However, the limited scanning angle and the missing data problem in the DBT cause distortions in reconstructed images. In this study, a regularizer (anisotropic total variation-ATV) that can be used with iterative reconstruction methods has been developed with taking into account DBT system geometry for the missing data problem. At the same time, the minimization of the gradient of the developed ATV, was made with lp norm, which was defined as non-convex depending on the p values. The efficiency of the developed algorithm was evaluated visually and quantitatively using CNR measurements with the help of projection data taken from the real DBT system of the CIRS BR3D phantom. The obtained results confirm that the proposed method provides better contrast resolution to image microcalcifications in a breast tissue.
Original language | English |
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Title of host publication | TIPTEKNO 2021 - Tip Teknolojileri Kongresi - 2021 Medical Technologies Congress |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781665436632 |
DOIs | |
Publication status | Published - 2021 |
Event | 2021 Medical Technologies Congress, TIPTEKNO 2021 - Antalya, Turkey Duration: 4 Nov 2021 → 6 Nov 2021 |
Publication series
Name | TIPTEKNO 2021 - Tip Teknolojileri Kongresi - 2021 Medical Technologies Congress |
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Conference
Conference | 2021 Medical Technologies Congress, TIPTEKNO 2021 |
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Country/Territory | Turkey |
City | Antalya |
Period | 4/11/21 → 6/11/21 |
Bibliographical note
Publisher Copyright:© 2021 IEEE.
Funding
ACKNOWLEDGMENT This study was supported by the Istanbul Technical University Scientific Research Projects (BAP) with the project number MYL-2020-42523.
Funders | Funder number |
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Istanbul Teknik Üniversitesi | MYL-2020-42523 |
Keywords
- 3D Breast imaging
- anisotropic total variation
- non-convex.
- tomosynthesis