Magnetic resonance imaging

Magnetic resonance imaging is a revolution in the field of electromagnetic resonance imaging. It mainly blocks some ultraviolet rays, which are the short and long components in the electromagnetic spectrum, and allows some long-term radio waves generated inside human tissue to pass through. This is the basic condition for the clinical application of magnetic resonance imaging. The examination is mainly of soft tissue, synovium, nerves, blood vessels and muscles with extremely high resolution, and it is mainly used to rectify some other types of diseases.

We have very good inspection methods for some lung, abdominal, head and brain injuries, as well as some central nervous system and musculoskeletal injuries. We have the characteristics of entering in a really safe mode. If there are magnetic substances in the body, they must be taken out and we can do some of this type of inspection, so there are also many requirements for magnetic resonance imaging.

Magnetic resonance imaging technology

[MEGNETIC RRESONANCE, MR] is a revolution in medical imaging. Biological tissues can be penetrated by short-wave components in the electromagnetic spectrum, such as X-rays, but can block medium-wave components such as ultraviolet rays, infrared rays and short waves. Human tissue allows long-wave components generated by magnetic resonance, such as radio waves, to pass through, which is one of the basic conditions for the clinical application of magnetic resonance. Nuclear spin motion is the basis of magnetic resonance imaging, and hydrogen atoms are the most numerous substance in the human body. Under normal circumstances, the hydrogen nuclei in the human body are in an irregular precession state. When the human body enters a strong and uniform magnetic space, under the action of an external static magnetic field, the originally chaotic hydrogen nuclei are arranged in the direction of the external magnetic field and continue to precess. When the external magnetic field is stopped immediately, the hydrogen atoms in the human body will return to their original state in the same tissue at the same time. This is called relaxation. The relaxation time of human tissues under pathological conditions is different. These signals are collected by a computer system and converted into images through digital reconstruction technology to provide scientific diagnostic results for clinical and research.

Magnetic resonance imaging (MRI) examination, due to its high resolution of soft tissue synovium, blood vessels, nerves, muscles, tendons, ligaments, and hyaline cartilage, is used for clinical examination of inflammation of synovium, blood vessels, muscles, fascia, synovial cysts and hyaline cartilage degeneration, exfoliation and bone erosion and ischemic necrosis, cervical spine and nucleus pulposus lesions, knee meniscus and cruciate ligament injuries, rheumatoid neurological complications and osteomyelitis. The macroscopic condition of synovial inflammation can be determined, such as the degree and range of fibrin exudation when the synovial volume changes, cell infiltration, vascular proliferation and granuloma (pannus) formation, synovial villus and synovial hypertrophy, etc., the early stage of arthritis and its pathological activity. It can also distinguish myositis, fascial tension, fat infiltration and hypertrophy, and the rise and fall of inflammation. It can clearly show cervical dislocation, spinal cord compression and spinal cord twisting.

The above is the magnetic resonance imaging examination. Radio waves pass through the body. This is the basic clinical condition for the application of magnetic resonance imaging. The examination is mainly of soft tissue, synovium, neurovascular and muscle with extremely high resolution. If there are magnetic substances in the body, they must be taken out. It is mainly used to rectify some other types of diseases, some lung, abdominal, craniocerebral injuries, and some central nervous system and musculoskeletal diseases.