Dual-mode imaging method and system for skin blood perfusion characterization

Abstract

The invention discloses a dual-mode imaging method and system for skin blood perfusion characterization, which can be used for monitoring skin blood perfusion and solves the problems that in the prior art, when skin blood perfusion is monitored, skin blood flow velocity distribution and blood volume pulse waves cannot be obtained at the same time, and skin blood perfusion cannot be comprehensively evaluated. According to the dual-mode imaging method for skin blood perfusion characterization, two video imaging systems are adopted for synchronous control, blood volume and laser speckle video images are collected in real time and synchronously processed, blood flow velocity distribution and blood volume pulse waves are obtained at the same time, and real-time and comprehensive monitoring of blood perfusion of the skin to be detected is achieved. In order to achieve the method, the invention further provides a dual-mode imaging system for skin blood perfusion characterization, and the system comprises a laser light source, a collimation beam expander, a green light source, a beam splitter, a first optical filter, a first video imaging module, a second optical filter, a polaroid and a second video imaging module.

Description

technical field [0001] The invention belongs to the technical field of skin blood perfusion monitoring, and in particular relates to a dual-mode imaging method and system for characterization of skin blood perfusion, which can be used for real-time and comprehensive characterization of the blood perfusion of skin tissue to be measured. Background technique [0002] Skin circulatory status is a major marker of vascular access, level of function, and characterization of cardiovascular disease. Skin blood perfusion is defined as the amount of blood flowing through the skin per unit time, which is one of the important indicators in the process of human microcirculation monitoring, health diagnosis, and prognosis evaluation. In the prior art, common methods for monitoring skin blood perfusion include laser speckle contrast imaging, imaging photoplethysmography, and the like. Such as image 3 As shown, laser speckle contrast imaging technology can realize large-area monitoring of...

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Problems solved by technology

[0003] In order to solve the problem in the prior art that the commonly used method cannot simultaneously acquire the skin blood flow velocity distribution and blood volume pulse wave when measuring the skin blood perfusion of the skin tissue to be tested, the present invention proposes a skin blood flow A dual-mode imaging method and system for perfusion characterization. This imaging method and system can be used for the blood flow velocity distribution of skin blood perfusion and the acquisition of blood volume pulse waves. It has the technical characteristics of comprehensive and real-time measurement and characterization of the skin tissue to be tested.

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