Traditional Culture Encyclopedia - Photography major - What are the medical imaging equipment?
What are the medical imaging equipment?
CT scans one section after another around a certain part of the human body by using accurately collimated X-ray beams, gamma rays and ultrasonic waves. It has the characteristics of fast scanning time and clear image, and can be used for the examination of many diseases. According to the different rays used, it can be divided into X-ray CT (X-CT), ultrasonic CT(X-CT) and gamma-ray CT (γ-CT).
2, CR, that is, computer X-ray photography system
Computerized X-ray photography refers to an X-ray projection imaging method using photo-excited storage phosphors as detectors, and also refers to medical imaging equipment using this imaging method.
3, DR, that is, direct digital X-ray photography system.
DR refers to a new digital X-ray photography technology directly controlled by computer, that is, X-ray information penetrating human body is converted into digital signals by using amorphous silicon flat panel detector, and images are reconstructed by computer and a series of image post-processing. DR system mainly includes X-ray generator, direct conversion flat panel detector, system controller, image monitor and image processing workstation.
4. Magnetic vibration
This is a revolution in medical imaging. Biological tissue can be penetrated by short-wave components such as X-rays in the electromagnetic spectrum, but it can block medium-wave components such as ultraviolet rays, infrared rays and long waves. Human tissue allows long-wave components such as electric waves generated by magnetic vibration to pass through, which is one of the basic conditions for clinical application of magnetic vibration.
5.DSA, namely digital subtraction angiography.
Digital subtraction angiography (DSA) is a new X-ray imaging system, which is a combination of traditional angiography and computer image processing technology. The images processed by DSA make the images of blood vessels in interventional surgery clearer and safer.
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