Sparse-view photoacoustic tomography using virtual parallel-projections and spatially adaptive filtering

Yihan Wang; Tong Lu; Wenbo Wan; Lingling Liu; Songhe Zhang; Jiao Li; Huijuan Zhao; Feng Gao

doi:10.1117/12.2291371

19 February 2018 Sparse-view photoacoustic tomography using virtual parallel-projections and spatially adaptive filtering

Yihan Wang, Tong Lu, Wenbo Wan, Lingling Liu, Songhe Zhang, Jiao Li, Huijuan Zhao, Feng Gao

Author Affiliations +

Proceedings Volume 10494, Photons Plus Ultrasound: Imaging and Sensing 2018; 104944T (2018) https://doi.org/10.1117/12.2291371
Event: SPIE BiOS, 2018, San Francisco, California, United States

Abstract

To fully realize the potential of photoacoustic tomography (PAT) in preclinical and clinical applications, rapid measurements and robust reconstructions are needed. Sparse-view measurements have been adopted effectively to accelerate the data acquisition. However, since the reconstruction from the sparse-view sampling data is challenging, both of the effective measurement and the appropriate reconstruction should be taken into account. In this study, we present an iterative sparse-view PAT reconstruction scheme where a virtual parallel-projection concept matching for the proposed measurement condition is introduced to help to achieve the “compressive sensing” procedure of the reconstruction, and meanwhile the spatially adaptive filtering fully considering the a priori information of the mutually similar blocks existing in natural images is introduced to effectively recover the partial unknown coefficients in the transformed domain. Therefore, the sparse-view PAT images can be reconstructed with higher quality compared with the results obtained by the universal back-projection (UBP) algorithm in the same sparse-view cases. The proposed approach has been validated by simulation experiments, which exhibits desirable performances in image fidelity even from a small number of measuring positions.

Citation Download Citation

Yihan Wang, Tong Lu, Wenbo Wan, Lingling Liu, Songhe Zhang, Jiao Li, Huijuan Zhao, and Feng Gao "Sparse-view photoacoustic tomography using virtual parallel-projections and spatially adaptive filtering", Proc. SPIE 10494, Photons Plus Ultrasound: Imaging and Sensing 2018, 104944T (19 February 2018); https://doi.org/10.1117/12.2291371

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