Wang, Kun and Xia, Jun and Li, Changhui and Wang, Lihong V. and Anastasio, Mark A. (2014) Low-rank matrix estimation-based spatio-temporal image reconstruction for dynamic photoacoustic computed tomography. In: Photons Plus Ultrasound: Imaging and Sensing 2014. Proceedings of SPIE. No.8943. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, Art. No. 89432I. ISBN 9780819498564. https://resolver.caltech.edu/CaltechAUTHORS:20180912-104942705
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Abstract
In order to monitor dynamic physiological events in near-real time, a variety of photoacoustic computed tomography (PACT) systems have been developed that can rapidly acquire data. Previously reported studies of dynamic PACT have employed conventional static methods to reconstruct a temporally ordered sequence of images on a frame-by-frame basis. Frame-by-frame image reconstruction (FBFIR) methods fail to exploit correlations between data frames and are known to be statistically and computationally suboptimal. In this study, a low-rank matrix estimation-based spatio-temporal image reconstruction (LRME-STIR) method is investigated for dynamic PACT applications. The LRME-STIR method is based on the observation that, in many PACT applications, the number of frames is much greater than the rank of the ideal noiseless data matrix. Using computer-simulated photoacoustic data, the performance of the LRME-STIR method is compared with that of conventional FBFIR method. The results demonstrate that LRME-STIR method is not only computationally more efficient but also produces more accurate dynamic PACT images than a conventional FBFIR method.
Item Type: | Book Section | ||||||||
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Additional Information: | © 2014 Society of Photo-Optical Instrumentation Engineers. This work was supported in part by NIH awards EB016963, EB010049, and CA167446. K. W. would also like to thank Dr. Robert W. Schoonover for useful discussions. | ||||||||
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Subject Keywords: | photoacoustic computed tomography; optoacoustic tomography; dynamic imaging; low-rank matrix estimation | ||||||||
Series Name: | Proceedings of SPIE | ||||||||
Issue or Number: | 8943 | ||||||||
Record Number: | CaltechAUTHORS:20180912-104942705 | ||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180912-104942705 | ||||||||
Official Citation: | Kun Wang, Kun Wang, Jun Xia, Jun Xia, Changhui Li, Changhui Li, Lihong V. Wang, Lihong V. Wang, Mark A. Anastasio, Mark A. Anastasio, } "Low-rank matrix estimation-based spatio-temporal image reconstruction for dynamic photoacoustic computed tomography", Proc. SPIE 8943, Photons Plus Ultrasound: Imaging and Sensing 2014, 89432I (3 March 2014); doi: 10.1117/12.2041850; https://doi.org/10.1117/12.2041850 | ||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
ID Code: | 89570 | ||||||||
Collection: | CaltechAUTHORS | ||||||||
Deposited By: | Tony Diaz | ||||||||
Deposited On: | 12 Sep 2018 18:42 | ||||||||
Last Modified: | 03 Oct 2019 20:17 |
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