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CT Scan is the short form of Computed Tomography, also known as CAT scans. In this technique, the patients are exposed to higher radiation levels compared to most of other imaging techniques.
CT Scan technology involves the use of an X-ray generating device that rotates around the patient's body. These powerful beams are picked up by an array of detectors and used by a computer to generate a three-dimensional view of a body region.
Experts agree that when used correctly, such scans can save lives. However, according to some estimates, the radiation exposure a patient receives from a full-body CT scan is often 500 times that of a conventional X-ray and about the same as that received by people living 2.4 kilometres away from the centres of the World War II atomic blasts in Japan.
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Related URLs:
http://www.newscientist.com/article/dn11827-ct-scan-radiation-can-equal-nuclear-bomb-exposure-.html
http://www.radiologyinfo.org/en/info.cfm?PG=bodyct
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By Gipson Edappazham
What else can I help you with?
Does an MRI emit radiation during the imaging process?
No, an MRI does not emit radiation during the imaging process.
Can an MRI make you sterile?
No, the amount of radiation in an MRI is too minimal to cause sterility.
How is regulation irmer applied in mri department?
The IR in IRMER stands for Ionising Radiation to which the regulation relates. MRI does not employ Ionising radiation so as far as I am aware the regulation doesn't apply to MRI.
How much radiation is emitted from a MRI scan?
None. By radiation, we're referring to ionizing radiation, or radiation with high enough energy to cause molecular damage, or possibly DNA damage. Radiation therapy, CT scan, Nuclear scans and X-rays all use ionizing radiation. MRI uses magnetic fields to induce electric currents, and employs radiofrequeny waves ( a type of electromagnetic radiation) that is not ionizing radiation. It is a form of energy, and thus metal objects, and even metal in tattoos can heat up and cause burns.
Is it safe to have another MRI after six months?
MRI Magnetic Resonance Imaging. An MRI does not use dangerous radiation like an X-ray does. It is just a powerful magnetic field that (so far) hasn't been associated with any deliberating effect.
Why are MRI's preferable to X-ray images?
MRI's work by magnets, not radiation. There is no exposure to radiation involved so therefore it's safer for the patient and lower risks are involved.
How much radiation does MRI emit?
MRI does not emit ionizing radiation like X-rays or CT scans. Instead, it uses a magnetic field and radio waves to create detailed images of the body's internal structures without exposing the patient to harmful radiation.
Why is an MRI better than a mammogram?
it produces better images of soft tissues - apex
What jobs can I get as a radiation technician?
Jobs that you can get as a radiation technician are CT scanner, MRI, Ultrasound, Radiation therapy, Nuclear medicine, mammography, and Radiation Technology.
What kind of electromagnetic wave does an MRI use?
An MRI uses radio waves, which are a form of electromagnetic radiation. These radio waves are directed towards the body to create images of internal structures based on how different tissues react to the waves.
Is there raideaction in a mri?
If you mean "radiation" then the answer is yes. Electromagnetic radiation in the radiofrequency spectrum. Note that this differs from x rays in that it is not damaging to the tissues.
What kind of a ray are mri?
MRI uses short bursts of radio, at frequencies of a few tens to a few hundreds of Megahertz. Exactly the same radiation that comes out of an ordinary TV transmitter, but in short bleeps, and without any sound or picture modulation on it.
