MR, CT, CR, DR, DSA, X-ray are all a medical imaging disease diagnosis.?
MRI is magnetic **** vibration imaging, which can obtain cross-sectional, sagittal and coronal images. The spatial resolution is good.
CT is a diagnostic X-ray device, a complex X-ray device that can obtain cross-sectional images. High density resolution compared to MRI is its characteristic.
CR and DR and X-ray diagnostic and CT like also through the X-ray to complete the image. The difference is that CR and DR are more advanced than ordinary X-ray machines in the acquisition of images ***, CR is an IP board, and DR is more advanced, which is done through PACS.
DSA is used when doing interventional procedures, angiography, digital silhouettes, images showing where the blood vessels are going to facilitate the interventional procedure. It is also a type of X-ray equipment.
Type-B ultrasonography (type-Bultrasonic), commonly known as "ultrasound", is a medical test that patients often come into contact with when they visit a doctor. Ultrasound diagnostic technology as an important part of diagnostic imaging technology, there are many better than CT, nuclear magnetic **** vibration characteristics.
1, different judgment
Magnetic *** vibration refers to the spin magnetic *** vibration (spinmagneticresonance) phenomenon.
The meaning of the broader, including nuclear magnetic *** vibration (nuclearmagneticresonance, NMR), electron paramagnetic *** vibration (electronparamagneticresonance, EPR) or electronic spin *** vibration (electronspinresonance, ESR). ESR).
Ultrasound in the diagnosis of disease, there are a variety of forms:
①Amplitude (amplitude) form of diagnosis of disease is called "one-dimensional display", because the amplitude of the first letter of the English alphabet is A, it is known as the A ultrasound, also known as one-dimensional ultrasound.
② gray scale that is the form of brightness (brightness) mode to diagnose the disease is called "two-dimensional display", because the first letter of the brightness is B, it is called B ultrasound, also known as two-dimensional ultrasound or gray scale ultrasound.
CT (ComputedTomography), that is, electronic computed tomography, it is the use of precise collimation of X-ray beams, gamma rays, ultrasound, etc..
DR refers to a new technology of direct digital radiography under the control of a computer, i.e., amorphous silicon flat panel detector is used to convert the X-ray information penetrating the human body into digital signals, and computer reconstruction of images and a series of image post-processing.
CR is an acronym for computerized radiography, which is a form of medical imaging for diagnosing diseases. It uses digitized images for easy access to PACS systems and can incorporate computer technology to process images and improve image quality.
2, the price is different
DR, CT, magnetic *** vibration, ultrasound price is relatively high.
CR is relatively inexpensive, and a set of CR can realize the digitalization of X-ray equipment in the whole hospital.
Baidu Encyclopedia - Ultrasound
Baidu Encyclopedia - Magnetic **** vibration
Baidu Encyclopedia - CT
Baidu Encyclopedia - Dr (DR)
Baidu Encyclopedia - CR (medical term)