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Cardiac MRI in Radiology Technology

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Introduction

Cardiac MRI in Radiology Technology MRI stands for Magnetic Resonance Imaging; that is a medical procedure. MRI creates detailed images of organs and tissues. This procedure is safe and noninvasive. By noninvasive I mean to state that it does not involve any kind of surgery or the insertion of any surgical instrument inside the body. The procedure is painless and it allows the surgeons or specialists to diagnose the problem and conditions so that the disease can be treated. The images are created by magnetic waves or radio waves. Magnetic resonance imaging does not involve any kind of ionizing radiations which are involved in CT scans or conventional x-rays so there is no risk of causing cancer. As MRI gives detailed images of the organs so it is mostly done when the problem or disease is not being assessed by the other imaging tests like x-rays and CT scans. Magnetic resonance imaging is done by using powerful magnetic field. It needs a computer, radio waves and magnetic field to conduct the test. These images are then processed in computer and their prints are then examined by the specialists. Cardiac MRI as the name shows creates images of heart when it is beating using a computer. ...read more.

Middle

Items like hair pins, zippers, safety pins etc distort the images so the result would not be proper. Hence pens, eyeglasses, rings n other metal item should be removed before the patient enters into the testing room. Sometimes this test is safe for the patients having metallic implants but there are some limitations in this regard as well. There are some types of metallic implants that are not suitable for the test. Internal implants like defibrillator, ear implants, brain clips (aneurysms) and cardiac pacemakers can not be scanned through this process. Medical devices or electronic equipment are some times unsafe for this procedure. Devices like artificial heart valves, artificial limbs, pace makers, infusion catheter, nerve stimulators, pins, screws, plates, surgical staples and metallic joint prostheses are prone to risk. Severe injuries can be caused due to such devices. If there are brain clips then due to strong magnetic field these clips can move from there original places. The cardiac pacemakers and defibrillators can fail to function. Cochlear (small devices that are implanted to help the people who are not able to hear) implantations can get damaged. Tattoos contain iron that can get heat up during MRI. The doctor will guide the patient if he or she should have MRI in such cases or not or in some cases the patient has to go through an x-ray and show the result to the doctor so that the doctor can analyze the condition of internal implantations. ...read more.

Conclusion

Along with the benefits there are also some risks associated with the cardiac magnetic resonance imaging in radiology. Risks are involved in all the branches of medical but if the provided precautions are followed properly then these risks can be avoided. If drugs for the relaxation of the patient are being used then there is a risk of giving the drug in large quantity so this thing should be kept in mind that the quantity should not exceed and if by mistake it does exceed then the nurse should be able to deal with it. The equipment and machine should be functioning properly otherwise it can produce harm to the patient. There are very little chances of having some sort of reaction or allergy due to the dye that has been injected and if such reactions are caused then they are really mild and easy to handle. The dye can cause side effects like headache, nausea, dizziness, change in taste and allergy. This procedure has normally no side effects from magnetic fields and radio waves. This procedure may take more time than other imaging techniques and it costs much than x-rays and CT scans. But it is a reliable and safe technique as it does not have any serious reactions or penetration. Researches are being made in this area to bring more and more reliability and easiness in this procedure. http://www.nhlbi.nih.gov/health/dci/Diseases/mri/mri_whatis.html http://www.radiologyinfo.org/en/info.cfm?pg=cardiacmr&bhcp=1#part_two http://www.nhlbi.nih.gov/health/dci/Diseases/mri/mri_whatis.html ...read more.

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