The difference between color Doppler ultrasound and black-and-white B-ultrasound
Color Doppler ultrasound is called color Doppler blood flow imaging system. Color Doppler ultrasound and B-ultrasound are two completely different instruments, which are not the simple color difference between color TV and black-and-white TV as people imagine. Color Doppler ultrasound has a wider diagnostic range. Generally speaking, black-and-white B-ultrasound has only one probe and can only check the abdominal cavity. Generally, there are three or more probes in color Doppler ultrasound. For lesions, probes with different frequencies can be used to explore, so as to understand the size, outline and nature of lesions more comprehensively. There are more diagnostic methods of color Doppler ultrasound. Compared with a single black-and-white B-ultrasound, color Doppler ultrasound has more functions, more ways to diagnose diseases, and the diagnosis of diseases is more clear. It usually has five ultrasonic diagnostic methods: B-ultrasound, M-mode, pulsed Doppler, continuous Doppler and color Doppler flow imaging. Therefore, its image resolution is also better than ordinary black-and-white super.
Introduction of color Doppler ultrasound: Color Doppler ultrasound is a painless examination and diagnosis technology in vitro. It uses conformal processing technology to obtain the best image quality in the shortest time, and this technology helps to obtain stable and consistent images by reducing the variation of operating environment.
Three-dimensional color B-ultrasound is a color Doppler ultrasonic diagnostic instrument with stereoscopic dynamic display, which can directly and stereoscopically display the three-dimensional structure of human organs and dynamically observe the three-dimensional structure in real time, while the previous two-dimensional imaging technology can only display a certain section of human organs. Three-dimensional color Doppler ultrasound provides more abundant image information for clinical ultrasound diagnosis, reduces the missed diagnosis of lesions and improves the quality of diagnosis and treatment. Mindray DC-6 color Doppler ultrasound
Color Doppler ultrasound is a color Doppler ultrasound blood flow image, which is formed by processing the Doppler signal with self-correlation technology, color coding the blood flow signal obtained by autocorrelation technology and then superimposing it on the image in real time. Ultrasound is an imaging technology, which can directly display the relevant structures of human body and dynamically observe the structure of human organs in real time, providing more abundant image information for clinical ultrasound diagnosis, reducing the missed diagnosis of lesions and improving the quality of diagnosis.
Clinical application
It is suitable for the examination of various diseases of heart, liver, gallbladder, spleen, pancreas, obstetrics and gynecology, peripheral blood vessels and superficial organs (such as eyeball, thyroid gland, breast, scrotum, etc.).
color Doppler ultrasound, full name of color Doppler ultrasound diagnostic instrument, English abbreviation? CDFI? It usually has a variety of ultrasonic methods, such as B-ultrasound, M-mode ultrasound, pulsed Doppler, continuous Doppler and color Doppler blood flow imaging. It is an imaging technology developed on the basis of black-and-white ultrasound (that is, two-dimensional B-ultrasound). It adopts the principle of Doppler technology, and uses red, blue and green as reference colors to carry out color imaging on flowing blood. Simply put, color is aimed at blood flow signals, not the image of the whole display screen. In other words, where the blood flow is not obvious, color cannot be displayed. It can be seen that color Doppler ultrasound is mainly used for heart examination and blood flow detection of major blood vessels inside and outside human organs. For example, in the diagnosis of digestive and urinary system diseases, the blood flow information of portal vein, hepatic artery and renal artery is obtained by color Doppler ultrasound. Generally speaking, due to its own limitations, black-and-white B-ultrasound is usually equipped with only one probe, which can only be used to examine abdominal cavity, such as liver, gallbladder, pancreas, spleen, kidney, ureter, bladder, prostate, uterus and its accessories, general obstetric examination, and exploration of hydrothorax and ascites. Generally, color B-ultrasound is equipped with three probes, which can not only check the abdominal cavity, but also check the heart, superficial skin, lymph nodes, breast, thyroid gland, submandibular gland, parotid gland, peripheral blood vessels, eyeball, testis and appendix. Color Doppler ultrasound can understand the blood supply of these organs, especially the blood flow inside some masses, which can roughly distinguish benign from malignant.
Is there only a color difference between color ultrasound and black-and-white ultrasound?
Compared with single black-and-white ultrasound, color ultrasound has more functions, more ways to diagnose diseases, and its image resolution is better than black-and-white ultrasound. Some superficial tissues and organs, such as thyroid gland, breast, parotid gland and testis, need to be examined by color ultrasound. In addition, some abdominal examinations, such as tumors, obstructive jaundice, liver cirrhosis and vascular lesions, should generally use color ultrasound. In addition, for example, if obstetric examination needs umbilical cord blood flow and the second and third trimester pregnancy needs to know whether there is umbilical cord around the neck, color B-ultrasound should be chosen. Of course, in terms of price, color B ultrasound is higher than black and white B ultrasound.
what do you usually say? Black and white super? Because it only has B-mode ultrasound imaging mode, referred to as? B ultrasound? . It is an ultrasonic examination method that displays two-dimensional sectional images of organs and lesions with different brightness light intensity. Because of English interpretation? brightness modulation ? The first letter of B is B, so it is called B-mode ultrasound diagnosis, or B-mode ultrasound for short.
Compared with black-and-white ultrasound, color ultrasound has more advantages than color display:
First, it has high resolution and strong sensitivity, and can find small lesions that can not be displayed by black-and-white ultrasound;
second, it has more functions, and it can be changed and applied at any time according to needs, such as B-mode method, M-mode method and Doppler method (tissue, energy and blood flow display), which is beneficial to the detection of lesions and the judgment of benign and malignant tumors;
Third, it is more widely used, equipped with probes with various frequencies, and can be used to examine various organs and diseases of the whole body;
Fourth, the technology is more advanced, which can support the application of many new technologies, such as real-time contrast-enhanced ultrasound and ultrasound-guided puncture biopsy and treatment.
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