Clinical trials

In this study, the investigators are studying new ways to look for abnormal tissues of the gastrointestinal tract during an endoscopy. We are using a VEGF-A targeting fluorescent probe and a NIR-II fluorescent endoscope to help detect abnormal tissues that are hard to see by the naked eye. The main purposes of this study include: 1. To translate the NIR-II approach into the endoscopy, and understand its advantages and limitations on detecting abnormal tissues in gastrointestinal. 2. To validate whether topical administration of a targeting probe can stick to abnormal tissues and be detected by the NIR-II endoscope. 3. To validate the safety and effectiveness of the topical administration of VEGF-A targeting probes for clinical application.

In this study, the investigators will detect hepatocellular carcinoma lesions using fluoescence imaging with ITGA6 targeting probes during tumor resection surgery. The aim is to evaluate wether intraoperative fluorescence imaging targeting ITGA6 can help to improve the detction effect of hepatocellular carcinoma, and finally help the accurate surgical resection. The main purposes of this study include: 1. To raise the detection rate of hepatocellular carcinoma intraoperatively using the novel NIR-II fluorescence molecular imaging and the ITGA6 targeting probe. 2. To validate the safety and effectiveness of the proposed ITGA6 targeting probes for clinical application.