X-rays. What is an X-ray?X-ray is an imaging technique that has been used since 1895 to show up abnormalities in bones and certain body tissue, such as breast tissue. X-rays are a type of high-energy radiation that is like light waves but higher in energy. An X-ray machine can produce short bursts of X-rays that pass easily through fluids and soft tissues of the body but are blocked by dense tissue such as bone. Why should I have an X-Ray?An X-ray is a beneficial procedure as it can help confirm a diagnosis such as arthritis and osteoporosis where appropriate. A diagnosis is made Clinically, that is to say by asking you questions and an examination. Should I have an x-ray?X-rays are not routinely performed as this could lead to unnecessary exposure to radiation.After a clinical diagnosis is made an X-ray examination may be suggested to confirm this diagnosis. Recent government guidelines have encouraged the reduction in X-rays that are unnecessary\ What about radiation?It is important to remember that we are all exposed to radiation from natural sources on a daily basis, and that the amount of radiation you receive in an X-ray is usually less than this. However, the amount of radiation that you receive from a single X-ray varies according to the area of your body being examined. Also, X-rays that carry a higher dose of radiation are normally used to diagnose serious conditions, such as cancer and in these cases the benefit to the patient is expected to be even greater. As X-rays usually use low amounts of radiation, the risk to your health is very small. However, repeated exposure to radiation may damage your body's cells, which can increase the risk of cancer developing in the future. This is why the dose of radiation that is used during X-rays is always kept as low as possible. The reproductive organs are particularly sensitive to radiation, and are therefore shielded whenever possible. A chest X-ray is equivalent to approximately 3 days of natural background radiation. A low back X-ray is equivalent to 50 chest X-rays.(Source- Royal college of Radiologists handbook) Are X-rays used to screen for spinal problems?No, this is usually done by having blood tests or other tests. Rheumatoid factor, HLA B27 are example's of this. Can 'twists' and different angles be seen in an X-ray?These can usually be seen on a physical examination of you. Also your body/spine changes when you stand/sit/lie down for an X-ray. |
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