What are the well known brands of bone densitometer and what are the uses of bone densitometer?

Bone densitometers are divided into two categories: X-ray and ultrasound.

X-ray absorptimeters are more accurate and can be used for diagnosis, but they are more expensive, usually in the hundreds of thousands.

Ultrasonic bone densitometer is usually less than 200,000, and can only be used for physical examination and preliminary examination.

Each category is divided into hand type and children's type, and each type is divided into imported and domestic, so there are too many varieties to list one by one.

Taking ultrasonic bone densitometer as an example, imported from the United States GE, Japan Furuno, and Israel.

Guangyang, South Korea's BMTECH, South Korea's Osteosys, domestic ones are Hebei Hongyang, Shenzhen Kang Rongxin.

Ultrasonic bone density and dual-energy X-ray bone densitometer, I know the manufacturer, Huai'an Xin Yuhong is good, our unit has been used for 10 years without problems, and other brands also have it, and the quality is average.

The Cornell ultrasound absorptometer used in our unit is not bad.

Yueqi's with the unit, 5 years, the last time I went to the provincial women and children for further study, I saw the imported equipment, and I felt that the domestic equipment was more convenient than the imported equipment.

Ultrasonic bone densitometer is divided into calcaneal bone densitometer, radius tibial bone densitometer, the current calcaneal bone densitometer technology is relatively backward, now popular is the radius tibial bone densitometer, because the radius tibial bone densitometer technology is advanced, electronic scanning, there are seven or eight domestic manufacturers, there are only two or three original manufacturers with their own technology, I know that Hebei Hongyang, Xuzhou Pinyuan and other manufacturers are their own production, quality control, accessories configuration is still good.

Categories: Education Science >> Admission >> High School Entrance Examination: With the continuous improvement of the quality of life of the world and the rapid development of modern medical instruments, in the eighties of the twentieth century, the bone densitometer used to determine the content of human bone mineral (bone salt) to reflect the degree of human health came into being.

Originally a single-photon densitometer, then a two-photon densitometer appeared. The basic principle of measuring the mineral content of human bone is the same, and there is no essential difference in the quality parameters and effect of measuring living bone, but the single-photon bone densitometer needs a water bag to simulate the soft tissue of the human forearm when measuring human bone density, while the latter does not need it, but its ** single-photon bone densitometer is much cheaper, and most of the current users use single-photon bone densitometer, which is only briefly introduced here.

The single-photon bone densitometer uses the principle of single-photon absorption, under the control of a microcomputer, to scan the human forearm and give the bone density parameters of the human forearm. It uses low-energy photons emitted by the radioactive source AM241 with an energy of 59KEV, when the photons penetrate the substance, part or all of them are absorbed by the substance, and the ability of the substance to absorb low-energy photons depends on the composition, density, thickness and other factors of the substance.

The bone densitometer is mainly composed of a low-energy photon source (AM241 radiation source), a photon detector, a scanning frame, a data acquisition processing and control circuit, a microcomputer and a printer. The photon source and the photon detector are on the coaxial line, and the first third of the forearm (non-dominant arm, that is, the very arm) is disposed of in the middle of the coaxial line between the photon source and the photon detector, under the control of the control line and the microcomputer, the forearm ulnar and radius are scanned in one direction or two directions, and the photon detector collects the number of photons transmitted through the forearm, and sends them to the data acquisition line and the computer for analysis and calculation, so as to give the linear density BMC (unit: grams) of the human forearm ulnar and radius cm), areal density BMO (unit:

g cm2) as well as parameters such as bone width bw (unit: high meters) and medullary cavity width (unit: mm).

At present, the medical community takes areal density as the main parameter data, and compares this main parameter with the statistical data curve of the normal population stored in the computer, and the areal density data of the normal population is obtained by collecting a large number of data of different male and female age groups. The above bone parameters can be output directly by the printer or stored on disk. According to the data, it can reflect the health of the human body, and provide a fast, easy, economical and non-damaging detection method for the diagnosis of osteoporosis caused by certain surgeries or drugs due to metabolic and endocrine diseases.

A bone densitometer can know the density of bone in the body. So as to know whether the bone density in the body is up to standard. Is it excessive or osteoporosis.

Bone densitometry can help detect the body's bone content, which is related to the health status of the human body. If you don't pay attention to bone density during growth, resulting in a deficiency, then there is a high possibility of developing osteoporosis in adulthood, and in severe cases, it can even lead to the need for bed rest. This situation will not only affect the person itself, but also a great burden on the family.

Due to the lack of bone density at a young age, it will always have an impact on later life. And in adulthood, the likelihood of osteoporosis is high, and if it is treated, it costs a lot of money. The specific manifestations are fragile bones, easy fractures, and some bone diseases are also prone to occur.

All of this restricts the patient's work, not only does he not earn money himself, but also creates a burden on the family, so it is important to pay attention to bone density.

If you lack bone density, you should improve your bone density from an early age in order to avoid worse outcomes in the future.

The principle of the bone densitometer is that two types of energy, the low-energy and high-energy photon peaks, are obtained by passing an X-ray tube ball through a certain device. After these photon peaks penetrate the body, the scanning system sends the received signal to a computer for data processing to determine the bone mineral content.

Analysis: Hello, you can check whether the personal physique belongs to the high-risk group of osteoporosis, opinions and suggestions: because the incidence of osteoporosis in people over 50 years old reaches 50%, making it prone to fractures, more common are fractures of the femoral neck, spine and radial ulna, so the bone density test is for this situation, with targeted examination.

Bone density refers to the density of minerals in the bones. Bone mineral density is an important indicator of bone quality, one of the important health standards for children, and is an effective way to understand the bone mineral content of children. Bone densitometry is used to diagnose bone mineralization abnormalities caused by diseases at an early stage.

Regular examination of bone mineral density in children can help prevent calcium deficiency in children and have a certain guiding role in preventing the occurrence of rickets.

Density reflects the degree of osteoporosis and is an important basis for fracture risk. Low bone density indicates that the body may be deficient in calcium, it is recommended to supplement calcium, drink more milk and protein-rich foods, properly supplement calcium, and eat more calcium-containing foods in daily life. Usually pay attention to calcium supplementation, eat more high-protein foods, and use Jianli polyammonia chondroitin calcium tablets to supplement calcium

Bone density test is a way to determine whether the bones are healthy, especially for identifying whether there is osteoporotic disease, preventing fractures, bone density test is generally done on the patient's hip, spine, wrist, and heel area.

Based on the results of bone density, it is possible to know if there is osteoporosis. Because the pathological basis of osteoporosis is bone loss, the microstructure of bone tissue is destroyed, so the fragility of bone increases, and fractures are prone to occur. At present, the widely used diagnostic method of osteoporosis is the diagnosis of osteopenia, that is, bone densitometry, through the measurement of bone density, we can understand whether and the degree of bone mass reduction, so as to attract the attention of patients, prevent it as soon as possible, and prevent the occurrence of fractures; In addition, by regularly checking bone density, it is possible to understand the rate of bone loss and determine the effectiveness of various preventive and advanced measures.

1. Dual-energy X bone densitometer DXA (gold standard).

2. Lumbar spine quantitative computed tomography QCT (test stage) 3. Quantitative ultrasound bone strength meter QS (for screening).

4. Single-energy bone absorptiomemeter SXA (for screening).

5. Single-photon bone densitometer SPA (visible in pharmacies for screening) 6. Two-photon bone densitometer PDA (eliminated).