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Proceedings Paper

Respiratory motion compensation algorithm of ultrasound hepatic perfusion data acquired in free-breathing
Author(s): Kaizhi Wu; Xuming Zhang; Guangxie Chen; Fei Weng; Mingyue Ding
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Paper Abstract

Images acquired in free breathing using contrast enhanced ultrasound exhibit a periodic motion that needs to be compensated for if a further accurate quantification of the hepatic perfusion analysis is to be executed. In this work, we present an algorithm to compensate the respiratory motion by effectively combining the PCA (Principal Component Analysis) method and block matching method. The respiratory kinetics of the ultrasound hepatic perfusion image sequences was firstly extracted using the PCA method. Then, the optimal phase of the obtained respiratory kinetics was detected after normalizing the motion amplitude and determining the image subsequences of the original image sequences. The image subsequences were registered by the block matching method using cross-correlation as the similarity. Finally, the motion-compensated contrast images can be acquired by using the position mapping and the algorithm was evaluated by comparing the TICs extracted from the original image sequences and compensated image subsequences. Quantitative comparisons demonstrated that the average fitting error estimated of ROIs (region of interest) was reduced from 10.9278 ± 6.2756 to 5.1644 ± 3.3431 after compensating.

Paper Details

Date Published: 27 October 2013
PDF: 5 pages
Proc. SPIE 8920, MIPPR 2013: Parallel Processing of Images and Optimization and Medical Imaging Processing, 89200I (27 October 2013); doi: 10.1117/12.2032179
Show Author Affiliations
Kaizhi Wu, Huazhong Univ. of Science and Technology (China)
Nanchang Hangkong Univ. (China)
Xuming Zhang, Huazhong Univ. of Science and Technology (China)
Guangxie Chen, Huazhong Univ. of Science and Technology (China)
Fei Weng, Huazhong Univ. of Science and Technology (China)
Mingyue Ding, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8920:
MIPPR 2013: Parallel Processing of Images and Optimization and Medical Imaging Processing
Jianguo Liu, Editor(s)

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