An investigation into the design of an image reconstruction algorithm for continuous wave tomosynthesis

Continuous wave (CW) tomosynthesis provides many theoretical advantages over traditional breast imaging techniques, like mammography. These theoretical advantages include improved spatial resolution, better information weighting, and the ability to resolve structures hidden by tissue overlap. However, unlike mammography, tomosynthesis is a three-dimensional imaging modality and it will require a complex reconstruction algorithm to process its projection data and recreate the object planes. This paper details a reconstruction algorithm proposed for continuous wave tomosynthesis which is based on the filtered back-projection reconstruction algorithm used in computed tomography. The algorithm for tomosynthesis requires modifications to the filtered back-projection algorithm in order to account for the lack of complete data which is generated by a tomosynthesis scan. In order to demonstrate the potential viability of a CW tomosynthesis reconstruction algorithm, the modified reconstruction algorithm is applied to several simulated phantom images and analyzed for reconstructed image quality.

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2013

Author dc:creator

• Douyon, Pierre-Guy Felix

Advisor dc:contributor.advisor

• Cardinal Warde and Louis Poulo.

• Electrical Engineering and Computer Science.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/85415

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/85415