Approach to accurately estimating low-contrast inclusion with a priori guidance in near-infrared diffuse optical tomography

Min Cheng Pan, Chien Hung Chen, Min Chun Pan, Yi Ming Shyr

研究成果: 雜誌貢獻期刊論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

In this paper, the slight variation in low-contrast optical properties of an inclusion (tumor) is estimated and investigated by near infra-red diffusive optical tomography (NIR DOT). We show that absorption-image reconstruction of test phantoms is based on the continuous wave domain with the aid of structural a priori knowledge obtained from other imaging modalities as well as empirical updating information that is proportional to the off-boundary distance, but not the size of inclusion against the background. Numerical simulation is demonstrated using various sizes, locations and contrasts of inclusion, where a stable and accurate reconstruction of absorption-coefficient images can be achieved using our method with structural knowledge and updating information.

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