Laser Doppler ultrasound technology is an advanced medical imaging technology that combines laser technology and Doppler ultrasound principles.



1、 Technical Principles
Laser Doppler ultrasound technology mainly relies on two core principles:
Doppler effect principle: When the ultrasound beam interacts with blood or other liquids in the flow, the Doppler effect is generated. This means that the frequency of sound waves will change according to the speed and direction of liquid flow. Laser Doppler ultrasound equipment can detect these frequency changes and convert them into analyzable data.

Laser interference principle: Laser Doppler ultrasound technology utilizes the interference phenomenon of laser beams to enhance signal detection capability. The laser beam is divided into multiple beams through a specific optical system, and these beams interfere in the sample, forming specific interference patterns. When blood or other liquids flow in the sample, the interference pattern changes, which can be detected by the device and converted into information about blood flow velocity and direction.



2、 Technical characteristics
Non invasive: Laser Doppler ultrasound technology is a non-invasive medical imaging technique that does not require invasive procedures on patients, so it does not cause pain or discomfort to patients.
High resolution: Due to the use of laser technology, laser Doppler ultrasound technology can provide high-resolution medical images, enabling doctors to diagnose diseases more accurately.
Fast and convenient: Laser Doppler ultrasound technology usually only takes a few minutes to complete the examination, and the equipment is easy to operate, which can be used in hospitals, clinics, or homes.
Strong repeatability: The inspection results of laser Doppler ultrasound technology can be recorded and analyzed through different devices and software, thus having high repeatability and reliability.

3、 Application field
Laser Doppler ultrasound technology has a wide range of applications in clinical medicine, mainly including:
Diagnosis of vascular and heart diseases: Laser Doppler ultrasound technology can be used to measure the velocity and direction of blood flow in blood vessels and the heart, providing doctors with diagnostic information about diseases such as vascular stenosis and heart valve disease.

Tumor diagnosis: Laser Doppler ultrasound technology can assist doctors in accurately diagnosing tumor tissue, especially in the detection of blood flow in tumor tissue, with high sensitivity and specificity.
Diagnosis of neurological diseases: Laser Doppler ultrasound technology can also be used for the diagnosis of neurological diseases, such as cerebral thrombosis, cerebral vasospasm, etc.



Laser Doppler ultrasound technology is an advanced medical imaging technology that combines laser technology and Doppler ultrasound principles. It has the characteristics of non-invasive, high-resolution, fast and convenient, and strong repeatability. In clinical medicine, laser Doppler ultrasound technology has broad application prospects, providing doctors with more and more accurate diagnostic information, and helping to improve the health and quality of life of patients.