X ray imaging helps the doctors and are often be able to make accurate diagnoses of their patients’ ailments without the need for exploratory operations.
What is X ray Imaging?
X ray imaging is mostly used in medical as a diagnostic tool when external examination of the body proves insufficient.
They can be used to produce images of bones, organs, and tissues, revealing disorders such as fractures, tumors, ulcers, blood clots, and degenerative changes such as osteoarthritis.
When these X rays are directed through the body, they produce shadow images on a photographic plate or fluorescent screen. X-rays were discovered in 1895 by the German scientist Wilhelm Roentgen.
The first X-ray taken was of his wife’s hand. Today, hundreds of millions of X-ray tests are carried out each year. One estimate put the annual global figure at 1.2 billion medical X-rays and 3.5 million dental X-rays.
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Why Are X ray Imaging Carried Out?
Doctors realize the value. of being able to look inside the body without having to perform major surgery. Radiologists
How Do X ray Imaging Work?
Beams of low-dose X-rays are passed through an X-ray tube and are directed towards the part of the body which is being examined.
These X-rays pass through the tissues and cast images, which are essentially shadows, onto photographic film or a fluorescent screen.
What Do X ray Imaging Show?
The x ray imaging (radiography) shows anatomical details of the part of the body that is being examined. In this way, it can show up any structural changes or damage.
Each part of the body is shown up in a different way, depending on a number of X-rays that it absorbs. The denser the tissue, the more efficiently it absorbs X-rays, so preventing them from reaching the photographic plate.
Hence the tissue will appear whiter on the radiograph. Empty space appears black. Bones show up clearly on X-ray images because they are so dense. Soft body tissue, skin, fat and muscle absorb X-rays to a lesser extent, and so show up less clearly.
For this reason, viewing internal organs such as the intestine and blood vessels requires them to be high-, lighted by a special dye which is opaque to X-rays. These contrast media or dyes are introduced into the body, orally or by injection or enema.
Always tell the doctor if you are pregnant, or if you think there is a possibility you might be.
Extra care is taken with children as they are much more sensitive to X-rays. Your personal risk from exposure depends on the part of the body being X-rayed and the amount of radiation you have received in the past.
Are X ray Imaging Dangerous?
X-rays can potentially involve in a destruction of the living cells, especially the rapidly dividing cells. For this reason, X-rays can be used in radiotherapy (radiation treatment) to destroy malignant tumors.
In this procedure, high doses of radiation are accurately directed at the cancer cells in order to kill them.
However, during radiotherapy, the radiation beam is constantly being moved around so as to reduce the amount of damage that may be caused to the surrounding healthy tissues.
Diagnostic X-rays involve much lower doses of radiation than are used in radiotherapy, and any slight risk is easily outweighed by the advantage of obtaining an early diagnosis and so being able to treat any underlying disease promptly.
You will be asked to remove any clothing that will get in the line of the X-rays. You must also remove any objects that might produce an image on the film.
Once the radiographer has placed you in position, you must lie very still while the X-rays are taken. For certain X-rays, you may need a special dye to be injected or swallowed to help show up the area being examined. You may also be restricted in what you can consume beforehand.