Photoacoustic microimaging adaptive scanning system and method

Abstract

The invention relates to a photoacoustic microimaging adaptive scanning system and method. The photoacoustic microimaging adaptive scanning system comprises a master control set, a laser, an ultrasonic probe, an infrared ranging device and a drive unit; the infrared ranging device detects first vertical distance between the ultrasonic probe and a first position point of to-be-detected tissue; the infrared ranging device detects second vertical distance between the ultrasonic probe and a second position point of the to-be-detected tissue; the master control set controls the drive unit to drive the ultrasonic probe to move to the position above the second position point according to the first vertical distance and the second vertical distance, and the distance between the ultrasonic probe and the second position point is enabled to be equal to the first vertical distance; the ultrasonic probe collects photoacoustic signals generated from the first position point and the second position point. By the arrangement, the distance between the ultrasonic probe and the to-be-detected tissue can be automatically adjusted when materials or biological tissue lower in flatness are subjected to imaging, real-time focusing is guaranteed, and high-resolution imaging of photoacoustic images is realized.

Description

technical field [0001] The invention relates to the technical field of microscopic imaging, in particular to an adaptive scanning system and method for photoacoustic microscopic imaging. Background technique [0002] Photoacoustic imaging is a non-destructive medical imaging method that has developed rapidly in recent years, combining the high penetration characteristics of pure ultrasound imaging with the high contrast characteristics of pure optical imaging. It uses pulsed laser as the excitation source and photoacoustic signal as the information carrier. According to the principle that different biological tissues have different optical absorption coefficients for specific wavelength lasers and then radiates different intensities of ultrasonic waves, it performs imaging through the collected photoacoustic signals. An imaging method that performs image reconstruction processing to obtain internal structure information of tissues. Photoacoustic imaging technology combines ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an adaptive scanning system for photoacoustic microscopy imaging, which is used to automatically adjust the distance between the scanning system and the surface of the tissue to be measured, so as to solve the problem that the optical resolution photoacoustic microscope cannot correct the flatness. The problem of high-quality imaging of materials or biological tissues

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