Efficient iterative image reconstruction algorithm for dedicated breast CT

Natalia Antropova; Adrian Sanchez; Ingrid S. Reiser; Emil Y. Sidky; John Boone; Xiaochuan Pan

doi:10.1117/12.2216933

22 March 2016 Efficient iterative image reconstruction algorithm for dedicated breast CT

Natalia Antropova, Adrian Sanchez, Ingrid S. Reiser, Emil Y. Sidky, John Boone, Xiaochuan Pan

Proceedings Volume 9783, Medical Imaging 2016: Physics of Medical Imaging; 97834K (2016) https://doi.org/10.1117/12.2216933
Event: SPIE Medical Imaging, 2016, San Diego, California, United States

Abstract

Dedicated breast computed tomography (bCT) is currently being studied as a potential screening method for breast cancer. The X-ray exposure is set low to achieve an average glandular dose comparable to that of mammography, yielding projection data that contains high levels of noise. Iterative image reconstruction (IIR) algorithms may be well-suited for the system since they potentially reduce the effects of noise in the reconstructed images. However, IIR outcomes can be difficult to control since the algorithm parameters do not directly correspond to the image properties. Also, IIR algorithms are computationally demanding and have optimal parameter settings that depend on the size and shape of the breast and positioning of the patient. In this work, we design an efficient IIR algorithm with meaningful parameter specifications and that can be used on a large, diverse sample of bCT cases. The flexibility and efficiency of this method comes from having the final image produced by a linear combination of two separately reconstructed images - one containing gray level information and the other with enhanced high frequency components. Both of the images result from few iterations of separate IIR algorithms. The proposed algorithm depends on two parameters both of which have a well-defined impact on image quality. The algorithm is applied to numerous bCT cases from a dedicated bCT prototype system developed at University of California, Davis.

Citation Download Citation

Natalia Antropova, Adrian Sanchez, Ingrid S. Reiser, Emil Y. Sidky, John Boone, and Xiaochuan Pan "Efficient iterative image reconstruction algorithm for dedicated breast CT", Proc. SPIE 9783, Medical Imaging 2016: Physics of Medical Imaging, 97834K (22 March 2016); https://doi.org/10.1117/12.2216933

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available