Monitoring imaging method and system for skin blood flow and blood vessels, and storage medium

Abstract

The invention discloses a monitoring imaging method and system for skin blood flow and blood vessels, and a storage medium. The method comprises the following steps: collecting skin thermal images through a thermal infrared imager; performing image preprocessing according to the skin thermal images to obtain thermal signals; converting the thermal signals into corresponding blood flow signals by using a wavelet filtering algorithm; and mapping the blood flow signals into pixel points of each frame to complete blood vessel function imaging, wherein imaging comprises blood vessel endothelial regulation function imaging, blood vessel nerve regulation function imaging, blood vessel myogenic regulation function imaging and skin blood flow distribution imaging. According to the invention, large-area, anti-interference, simple and rapid monitoring of skin blood flow can be realized at a reasonable cost, functional imaging can be carried out on various regulation activities such as blood vessel endothelial regulation, nerve regulation and myogenic regulation, and the method and system can be used for early detection of peripheral vascular structures and functional lesions and can be intensively applied to the field of medical instruments.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a monitoring and imaging method, system and storage medium for skin blood flow and blood vessels. Background technique [0002] The distribution and changes of skin blood flow are closely related to people's physical condition, and are important indicators reflecting the health status of blood vessels and tissues. Timely and accurate detection of changes in skin blood flow is crucial for early detection and treatment of diseases such as vascular endothelial dysfunction and atherosclerosis. [0003] There are many different skin blood flow monitoring technologies on the market. Currently, the commonly used skin blood flow monitoring technologies are as follows: Plethysmography usually uses strain gauges wrapped around the limb to quantify the size change of the limb, which is measured due to blood volume Volumetric changes in limb size due to changes; photoplethysmography measures ...

AI Technical Summary

Problems solved by technology

[0004]The main disadvantages of the existing skin blood flow monitoring technology are as follows: The main disadvantage of the plethysmography method is that it can only reflect the volume change of the overall blood flow in the range of the measured limbs, and cannot obtain Changes in the spatial distribution of epidermal blood flow; the main disadvantage of contact point laser Doppler flowmeter is that single-point measurement cannot obtain the spatial distribution of epidermal blood flow, and it is extremely sensitive to movement, which is easy to introduce noise interference; ultrasonic technology is also sensitive to movement Extremely sensitive, it is easy to introduce noise interference, and the operation requires professional technicians; the main disadvantage of laser speckle contrast imaging is that it is extremely sensitive to motion, needs to fix the subject during the measurement process, and is expensive, thus limiting its use in clinical or laboratory The use in the environment; the main disadvantage of thermal methods, such as infrared thermal imaging, is that they can only indirectly reflect the distribution of skin blood flow, and are easily interfered by ambient temperature and self-metabolic heat production; existing skin blood flow monitoring technologies require a combination of reactions Sexual congestion test to complete vascular function test

The reactive hyperemia test generally requires pressurized occlusion of the brachial artery. The test takes a long time, and long-term ischemia and hypoxia will cause some discomfort to the tester. It is not suitable for patients with severe atherosclerosis.

Images