In vivo bioluminescence tomography based on multi-view projection and 3D surface reconstruction

Shuang Zhang; Kun Wang; Chengcai Leng; Kexin Deng; Yifang Hu; Jie Tian

doi:10.1117/12.2078203

2 March 2015 In vivo bioluminescence tomography based on multi-view projection and 3D surface reconstruction

Shuang Zhang, Kun Wang, Chengcai Leng, Kexin Deng, Yifang Hu, Jie Tian

Proceedings Volume 9328, Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues XIII; 93280S (2015) https://doi.org/10.1117/12.2078203
Event: SPIE BiOS, 2015, San Francisco, California, United States

Abstract

Bioluminescence tomography (BLT) is a powerful optical molecular imaging modality, which enables non-invasive realtime in vivo imaging as well as 3D quantitative analysis in preclinical studies. In order to solve the inverse problem and reconstruct inner light sources accurately, the prior structural information is commonly necessary and obtained from computed tomography or magnetic resonance imaging. This strategy requires expensive hybrid imaging system, complicated operation protocol and possible involvement of ionizing radiation. The overall robustness highly depends on the fusion accuracy between the optical and structural information.

In this study we present a pure optical bioluminescence tomographic system (POBTS) and a novel BLT method based on multi-view projection acquisition and 3D surface reconstruction. The POBTS acquired a sparse set of white light surface images and bioluminescent images of a mouse. Then the white light images were applied to an approximate surface model to generate a high quality textured 3D surface reconstruction of the mouse. After that we integrated multi-view luminescent images based on the previous reconstruction, and applied an algorithm to calibrate and quantify the surface luminescent flux in 3D.Finally, the internal bioluminescence source reconstruction was achieved with this prior information.

A BALB/C mouse with breast tumor of 4T1-fLuc cells mouse model were used to evaluate the performance of the new system and technique. Compared with the conventional hybrid optical-CT approach using the same inverse reconstruction method, the reconstruction accuracy of this technique was improved. The distance error between the actual and reconstructed internal source was decreased by 0.184 mm.

Citation Download Citation

Shuang Zhang, Kun Wang, Chengcai Leng, Kexin Deng, Yifang Hu, and Jie Tian "In vivo bioluminescence tomography based on multi-view projection and 3D surface reconstruction", Proc. SPIE 9328, Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues XIII, 93280S (2 March 2015); https://doi.org/10.1117/12.2078203

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