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There are many, such as examination of bones, etc., and some chest diseases.
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The main difference between X-rays and CT is that CT looks better and more comprehensively than X-rays. 1. The appearance of the X-ray overlaps before and after, and the image is on a flat **, if there is a relatively small lesion, it will be covered when it overlaps, and it is not easy to be found; 2. CT, CT is a layered image, whether there are lesions on the structure of each layer of the human body, can be more clearly displayed through CT; 3. X-ray and CT are theoretically not in conflict, CT is better and more comprehensive than X-ray, but X-ray examination is fast, radiation is low, and it is also cheap.
An X-ray scan is a flat projection of a part of the body. CT, on the other hand, is a continuous multi-slice scan of a cross-sectional section of a part of the body. First of all, the imaging principles of the two are different, so the effect of imaging and the way of display will also be different.
If X-ray does not clearly determine the specific condition of the lesion, CT is required for further examination. However, this does not mean that CT is a substitute for X-rays.
X-ray is larger than CT radiation, their radiation energy is different, X-ray is a plane irradiation film, suitable for tuberculosis, fracture diagnosis and treatment is better, CT is tomography, layer by layer for scanning imaging, for the diagnosis of cerebral hemorrhage mass is better. Both of them have their pros and cons as well as advantages. CT is not the best, CT is safer and better than X-rays in terms of radiation dose, but if there is a fracture, X-rays are definitely better.
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What is the difference between X-ray, CT, and MRI.
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CT is more sophisticated than X-ray. If the doctor does not recommend CT...X-rays are sufficient. 1.You don't need to wear a radiation suit at any of them. None of the escorts are allowed to enter.
2.The difference: CT is clearer.
It's a tomographic. It works well. It's expensive.
X-rays are one-sided. Generally, if the disease is not serious, an X-ray is fine. **A test report is attached!
3.During the CT process, an appointment should be made in advance. The process of illumination is slightly slower.
Lying down. Pick up the tablets in a few days. X-rays are not by appointment.
Wait in line for a while and you'll be done! What to look for. It is possible to be standing.
Some hospitals can pick it up after a while. (Note.) You can't wear a necklace.
Table. Keys and other metal objects enter).
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This kind of inspection requires attention to protective measures, and the degree and scope of radiation can be different.
The imaging methods of the two are very different from the machine examination methods, simply put, X-ray is on the surface, while CT can be chromatography, density and clarity, the examination range is wider, and the diagnostic efficiency is high.
In general, X-rays can be selected, and in special cases, CT examinations can be done according to the doctor's instructions.
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With the development of the times, science and technology are also constantly advancing, medical technology is also constantly improving, and people are paying more and more attention to physical health. Nowadays, X-rays are a very common way of examination, so what can X-rays detect?
X-ray is the sum of the projections of X-rays through the tissues of different thicknesses and hypousal densities of a certain part of the body, and is an image of the various structures along the route of the X-ray superimposed. Doctors can diagnose lesions by the density and morphological changes in organs and structures that the patient is looking at.
The main application of X-ray is chest X-ray, which can see the soft tissues, soft bones and trachea of the chest. Congenital diseases of the lungs and trachea, such as dysplasia, various inflammations, or edema, can also be diagnosed. Although X-rays have a greater effect on the examination of the chest, lungs and abdomen, X-rays have a relatively small effect on the examination of solid organs such as the brain, spinal cord, liver, gallbladder, pancreas and spleen.
If x-rays are required for diagnosis, lead protection should be worn. Protect non-irradiated areas that are sensitive to X-rays, such as gonads and thyroids, and wear protective equipment. After the X-ray, you should wait outside the examination room to avoid unnecessary radiation and reduce the harm to the body.
Due to the greater radiation damage of X-rays, X-rays should be controlled once a year as much as possible, and pregnant women should avoid X-rays as much as possible to avoid affecting the baby.
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X-rays are the doctor's third eye that can help us detect and diagnose abnormalities and diseases in the body's internal structures.
Commonly done x-rays include chest x-rays and GI tract radiography.
Chest X-ray: Mainly to check for diseases such as the lungs, heart, aorta, mediastinum and bones in the chest cavity.
Lung X-ray: The lungs are one of the most important organs of the human body, and lung X-rays can detect pneumonia, emphysema, pulmonary edema, pneumothorax, tuberculosis, lung cancer, etc.
In addition, X-rays can also detect whether the heart is enlarged or damaged, whether the aorta is hardened, whether the mediastinum is displaced, and whether there are deformations, fractures, osteoporosis and many other diseases in the chest cavity.
Gastroenterography can detect the structure, shape, and peristalsis of mucous membranes such as the stomach, esophagus, small intestine, and colon, as well as diseases such as polyps, ulcers, and tumors of the digestive tract.
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The wavelength is between.
Ultraviolet light and. inter-radiographic.
Electromagnetic radiation. X-rays are mainly used to detect lesions in the bones, but they are also quite useful for detecting lesions in soft tissues. Common examples are chest X-rays, which are used to diagnose lung diseases such as pneumonia, lung cancer, or emphysema; Abdominal X-ray, on the other hand, is used to detect intestinal infarction
air, due to perforation of internal organs) and free fluid. The use of x-rays for diagnosis is controversial in some cases, such as stones (which have little or no blocking effect on x-rays) or kidney stones (which are generally visible but not always visible).
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X-rays are taken by X-ray penetration**.
1. Introduction. X-rays are what hospitals now call CR films or DR films. X-rays can effectively penetrate soft tissues, but can penetrate bone tissues without highlighting.
It is commonly used in industry to detect flaws, and is commonly used in medicine for fluoroscopic examination, which is generally used more in orthopedics, especially in the diagnosis of limb fractures, which has the advantages of wide diagnosis and low cost.
2. Classification. X-rays include both traditional and digital X-rays.
1. The traditional X-ray film is that after the X-ray passes through the human body, due to the different degrees of X-ray absorption by different tissues in various parts of the human body, it can show the different density information of X-rays distributed in the photosensitive film, and the shadow of different densities is displayed by pure width development and fixing.
For example, the bone absorbs more X-ray dose, so the X-ray film shows a high-density opacity; The gas-bearing tissue absorbs less X-ray volume, so the X-ray appears as a low-density opacity.
2. Digital X-ray film refers to the direct imaging of X-rays through the human body without direct imaging on film, and the use of IP boards, flat panel detectors, and collectors to image the head.
Specific functions: IP board is mainly used for CR imaging system; Flat panel detectors can be used in DR imaging systems and DSA imaging systems; The collector is mainly used in CT scanning, collecting signals through a computer processing system, transmitting the image data to a medical dry camera, and imaging on the film through laser scanning to complete the final imaging.
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