Simultaneous SPECT imaging of multi-targets to assist in identifying hepatic lesions

Molecular imaging technique is an attractive tool to detect liver disease at early stage. This study aims to develop a simultaneous dual-isotope single photon emission computed tomography (SPECT)/CT imaging method to assist diagnosis of hepatic tumor and liver fibrosis. Animal models of liver fibros...

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Bibliographic Details
Published in:Scientific reports 2016-07, Vol.6 (1), p.28812-28812, Article 28812
Main Authors: Guo, Zhide, Gao, Mengna, Zhang, Deliang, Li, Yesen, Song, Manli, Zhuang, Rongqiang, Su, Xinhui, Chen, Guibing, Liu, Ting, Liu, Pingguo, Wu, Hua, Du, Jin, Zhang, Xianzhong
Format: Article
Language:English
Subjects:
59
64
692/4017
692/4020/4021/1607
692/699/1503/1607
Animal models
Chromatography
Computed tomography
Humanities and Social Sciences
Isotopes
Lesions
Liver cancer
Liver diseases
multidisciplinary
Science
Tomography
Tumors
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Summary:Molecular imaging technique is an attractive tool to detect liver disease at early stage. This study aims to develop a simultaneous dual-isotope single photon emission computed tomography (SPECT)/CT imaging method to assist diagnosis of hepatic tumor and liver fibrosis. Animal models of liver fibrosis and orthotopic human hepatocellular carcinoma (HCC) were established. The tracers of 131 I-NGA and 99m Tc-3P-RGD 2 were selected to target asialoglycoprotein receptor (ASGPR) on the hepatocytes and integrin α v β 3 receptor in tumor or fibrotic liver, respectively. SPECT imaging and biodistribution study were carried out to verify the feasibility and superiority. As expected, 99m Tc-3P-RGD 2 had the ability to evaluate liver fibrosis and detect tumor lesions. 131 I-NGA showed that it was effective in assessing the anatomy and function of the liver. In synchronized dual-isotope SPECT/CT imaging, clear fusion images can be got within 30 minutes for diagnosing liver fibrosis and liver cancer. This new developed imaging approach enables the acquisition of different physiological information for diagnosing liver fibrosis, liver cancer and evaluating residual functional liver volume simultaneously. So synchronized dual-isotope SPECT/CT imaging with 99m Tc-3P-RGD 2 and 131 I-NGA is an effective approach to detect liver disease, especially liver fibrosis and liver cancer.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep28812