Fluorescent electronic endoscope imaging system and detection method thereof

Abstract

The invention discloses a fluorescent electronic endoscope imaging system and a detection method thereof. The imaging system comprises a dual-channel light source module, an endoscope light guide module, a CMOS image acquisition module and a PC imaging and storage module. Based on a light source modulation technology, a white light source and a near-infrared light source are modulated by using a modulation signal generator and a constant current source. The double-channel irradiation light source irradiates tumor tissue to be detected through the endoscope light guide module to obtain a composite light signal, the CMOS image acquisition module performs single-channel imaging, the single-channel imaging is imported into the PC imaging and storage module, and the double-channel composite image signal can be respectively displayed and stored after being demodulated by using a digital phase locking algorithm. According to the detection method, two-channel images are fused, so that more complete and reliable tissue information is obtained, and the purpose of more accurately positioning the position, the size and the shape of the tumor tissue is achieved. While the image signal-to-noise ratio of the imaging system is improved, the tumor recurrence rate is expected to be reduced clinically.

Description

Technical field [0001] The present invention belongs to the field of biomedical imaging, and more particularly to a fluorescent electron endoscope imaging system for gastrointestinal surgery, colonoscopy, and the like. Background technique [0002] Endoscopic is an important instrument for modern medical diagnosis, in clinical applications, can identify healthy tissues and cancer tissues through endoscopy, thereby effectively helping surgeons accurately judge and remove cancer tissue. Endoscopic technologies are small, small pain, fast recovery, postoperative scar, in line with modern aesthetic requirements, widely used in gastrointestinal surgery, chest surgery, colonoscopy, arthroscopy, etc. At present, clinical experience has shown that it is difficult to accurately divide and completely remove tumors when the contrast between tumor is low or less lesion. [0003] Fluorescence Molecular Imaging (FMI) is an effective tool for precisely positioning tumors, which is fluorescently...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to use the digital phase-locking algorithm to improve the signal-to-noise ratio and system stability, solve the problems in the prior art that the fluorescent signal is weak and the image acquisition frame rate is reduced, and use the image fusion method to obtain a more accurate image of the tumor tissue. Information such as location, size and shape can help surgeons to accurately judge and completely remove tumors clinically

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