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

A skin blood flow, dual-mode imaging technology, applied in the fields of blood flow measurement, application, medical science, etc., can solve the problem that the skin blood flow velocity distribution and blood volume pulse wave cannot be obtained at the same time.

Pending Publication Date: 2021-06-11
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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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

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

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Embodiment Construction

[0047] The invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0048] Such as figure 1 and figure 2As shown, the present invention is a dual-mode imaging system for skin blood perfusion characterization, including a laser light source 1, a collimating beam expander 2, a green light source 4, a beam splitter 5, a first filter 6, a second A video imaging module 7, a second filter 8, a polarizer 9, and a second video imaging module 10;

[0049] The incident light of the laser light source 1 passes through the collimating beam expander 2 to form a collimated beam expanding beam;

[0050] The collimated expanded beam beam and the incident light of the green light source 4 are irradiated onto the skin tissue 3 to be tested;

[0051] The light beam reflected by the skin tissue 3 to be tested passes through the beam splitter 5 to form a reflected light beam and a transmitted light beam;

[0052] The reflected ligh...

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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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Application Information

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IPC IPC(8): A61B5/026
CPCA61B5/0261A61B2562/0238
Inventor 吕媛媛周亮刘朝晖乔文龙孙笑敩姜乐赵鹤童
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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