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

Abstract：

: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-RGD2 were selected to target asialoglycoprotein receptor (ASGPR) on the hepatocytes and integrin αvβ3 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-RGD2 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-RGD2 and (131)I-NGA is an effective approach to detect liver disease, especially liver fibrosis and liver cancer.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Guo Z,Gao M,Zhang D,Li Y,Song M,Zhuang R,Su X,Chen G,Liu T,Liu P,Wu H,Du J,Zhang X

doi

10.1038/srep28812

subject

Has Abstract

pub_date

2016-07-05 00:00:00

pages

28812

issn

2045-2322

pii

srep28812

journal_volume

6

pub_type

杂志文章

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