Investigation of optimal angular range and projection density for next generation tomosynthesis

Chloe J. Choi; Trevor L. Vent; Michael J. Geagan; Peter B. Noël; Andrew D. A. Maidment

doi:10.1117/12.2612419

4 April 2022 Investigation of optimal angular range and projection density for next generation tomosynthesis

Chloe J. Choi, Trevor L. Vent, Michael J. Geagan, Peter B. Noël, Andrew D. A. Maidment

Proceedings Volume 12031, Medical Imaging 2022: Physics of Medical Imaging; 120314C (2022) https://doi.org/10.1117/12.2612419
Event: SPIE Medical Imaging, 2022, San Diego, California, United States

Conference Poster

Abstract

The impact of the angular range in conventional DBT is a trade-off in image quality; increasing angular range improves in-depth resolution and isotropic sampling across the detector, but compromises in-plane resolution. Our next generation tomosynthesis (NGT) system is capable of two-dimensional source trajectory and incorporates narrow- and wide-angle acquisition in orthogonal directions for a single tomosynthesis scan. In this work, performance of NGT geometries for high- and low-frequency objects across the detector was evaluated via computer simulations. We showed that NGT geometries preserve high in-plane resolution and present highly isotropic sampling, thus combine the benefits of narrow- and wide-angle tomosynthesis.

Conference Presentation

Citation Download Citation

Chloe J. Choi, Trevor L. Vent, Michael J. Geagan, Peter B. Noël, and Andrew D. A. Maidment "Investigation of optimal angular range and projection density for next generation tomosynthesis", Proc. SPIE 12031, Medical Imaging 2022: Physics of Medical Imaging, 120314C (4 April 2022); https://doi.org/10.1117/12.2612419

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