Tuesday, September 7, 2010

MRI Scan Spine

WHAT IS MRI SCAN  OF SPINE ?

MRI is a technique which have changed the dimensions of the medical science. It guides clear about the status of the fault in the parts of the body.Magnetic resonance imaging (MRI) is a noninvasive medical test that helps physicians diagnose and treat medical conditions.

MR imaging uses a powerful magnetic field, radio frequency pulses and a computer to produce detailed pictures of organs, soft tissues, bone and virtually all other internal body structures. The images can then be examined on a computer monitor, transmitted electronically, printed or copied to a CD. MRI does not use ionizing radiation (x-rays).
Detailed MR images allow physicians to better evaluate various parts of the body and determine the presence of certain diseases that may not be assessed adequately with other imaging methods such as x-ray, ultrasound or computed tomography (also called CT or CAT scanning).
An MRI of the spine shows the anatomy of the vertebrae that make up the spine, as well as the disks, spinal cord and the spaces between the vertebrae through which nerves pass.
Currently, MRI is the most sensitive imaging test of the spine in routine clinical practice.

PROCEDURES
     * assess the spinal anatomy.
    * visualize anatomical variations and diseased tissue in the spine.
    * help plan surgeries on the spine such as decompression of a pinched nerve or spinal fusion.
    * monitor changes in the spine after an operation, such as scarring or infection.
    * guide the injection of steroids to relieve spinal pain.
    * assess the disks - bulging, degenerated or herniated intervertebral disk—a frequent cause of severe lower back pain and sciatica.
    * evaluate compressed (or pinched) and inflamed nerves.
    * explore possible causes in patients with back pain (compression fracture for example).
    * image spinal infection or tumors that arise in, or have spread to, the spine.

PREPARATION FOR MRI SCAN OF SPINE
You may be asked to wear a gown during the exam or you may be allowed to wear your own clothing if it is loose-fitting and has no metal fasteners.

Guidelines about eating and drinking before an MRI exam vary with the specific exam and also with the facility. For some types of exams, you will be asked to fast for 8-12 hours. Unless you are told otherwise, you may follow your regular daily routine and take medications as usual.

Some MRI examinations may require the patient to swallow contrast material or receive an injection of contrast into the bloodstream. The radiologist or technologist may ask if you have allergies of any kind, such as allergy to iodine or x-ray contrast material, drugs, food, the environment, or asthma. However, the contrast material used for an MRI exam, called gadolinium, does not contain iodine and is less likely to cause side effects or an allergic reaction.

The radiologist should also know if you have any serious health problems or if you have recently had surgery. Some conditions, such as severe kidney disease may prevent you from being given contrast material for an MRI. If there is a history of kidney disease, it may be necessary to perform a blood test to determine whether the kidneys are functioning adequately.

Women should always inform their physician or technologist if there is any possibility that they are pregnant. MRI has been used for scanning patients since the 1980's with no reports of any ill effects on pregnant women or their babies. However, because the baby will be in a strong magnetic field, pregnant women should not have this exam unless the potential benefit from the MRI is assumed to outweigh the potential risks. See the Safety page (www.RadiologyInfo.org/en/safety/) for more information about pregnancy and MR imaging.

If you have claustrophobia (fear of enclosed spaces) or anxiety, you may want to ask your physician for a prescription for a mild sedative prior to the scheduled examination.

Infants and young children usually require sedation to complete an MR exam without moving. Moderate and conscious sedation can be provided at most facilities. A physician or nurse specializing in the administration of sedation to children will be available during the exam to ensure your child's safety while under the effects of sedation. You will be given special instructions how to prepare your child for the sedation.

Jewelry and other accessories should be left at home if possible, or removed prior to the MRI scan. Because they can interfere with the magnetic field of the MRI unit, metal and electronic objects are not allowed in the exam room. These items include:

    * jewelry, watches, credit cards and hearing aids, all of which can be damaged.
    * pins, hairpins, metal zippers and similar metallic items, which can distort MRI images.
    * removable dental work.
    * pens, pocketknives and eyeglasses.
    * body piercings.

In most cases, an MRI exam is safe for patients with metal implants, except for a few types. People with the following implants cannot be scanned and should not enter the MRI scanning area unless explicitly instructed to do so by a radiologist or technologist who is aware of the presence of any of the following:

    * internal (implanted) defibrillator or pacemaker
    * cochlear (ear) implant
    * some types of clips used on brain aneurysms

You should tell the technologist if you have medical or electronic devices in your body, because they may interfere with the exam or potentially pose a risk, depending on their nature and the strength of the MRI magnet. Examples include but are not limited to:

    * artificial heart valves
    * implanted drug infusion ports
    * implanted electronic device, including a cardiac pacemaker
    * artificial limbs or metallic joint prostheses
    * implanted nerve stimulators
    * metal pins, screws, plates, stents or surgical staples

In general, metal objects used in orthopedic surgery pose no risk during MRI. However, a recently placed artificial joint may require the use of another imaging procedure. If there is any question of their presence, an x-ray may be taken to detect the presence of and identify any metal objects.

Patients who might have metal objects in certain parts of their bodies may also require an x-ray prior to an MRI. You should notify the technologist or radiologist of any shrapnel, bullets, or other pieces of metal which may be present in your body due to accidents. Dyes used in tattoos may contain iron and could heat up during MRI, but this is rarely a problem. Tooth fillings and braces usually are not affected by the magnetic field but they may distort images of the facial area or brain, so the radiologist should be aware of them.

Parents who accompany children into the scanning room also need to remove metal objects and notify the technologist of any medical or electronic devices they may have.

106 comments:

  1. yes, you are right. The information you have provided are good and i would like to add few points to it.

    An MRI (or magnetic resonance imaging) scan is a radiology technique that uses magnetism, radio waves, and a computer to produce images of body structures. An MRI scan can be used as an extremely accurate method of disease detection throughout the body. In the head, trauma to the brain can be seen as bleeding or swelling. Other abnormalities often found include brain aneurysms, stroke, tumors of the brain, as well as tumors or inflammation of the spine.

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  2. AWESOME ON MRISCAN

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  3. want to know cost of MRI Scan

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  4. can I know about MRI Scan of Knee.

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  5. wao useful information on MRI Scan.

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  6. An MRI (or magnetic resonance imaging) scan is a radiology technique that uses magnetism

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  7. The image and resolution produced by MRI is quite detailed and can detect tiny changes of structures within the body.

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  8. An MRI scan can be used as an extremely accurate method of disease detection throughout the body

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  9. Often, surgery can be deferred or more accurately directed after knowing the results of an MRI scan.

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  10. Neurosurgeons use an MRI scan not only in defining brain anatomy but in evaluating the integrity of the spinal cord after trauma.

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  11. MRI stands for magnetic resonance imaging. An MRI scan uses a strong magnetic field and radio waves to create pictures, on a computer, of tissues, organs and other structures inside your body.

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  12. What is an MRI scan?

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  13. When are MRI scans used?

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  14. I am seeking information about How does an MRI scan work?

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  15. I am worried about the the risks of an MRI scan?if you guide me about MRI scan well.

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  16. How does a patient prepare for an MRI scan and how is it performed?

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  17. How does a patient obtain the results of the MRI scan?

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  18. Pictures of an MRI of the spine

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  19. MRI Scan At A Glance

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  20. Patient Discussions: Magnetic Resonance Imaging (MRI Scan) - Helped With Your Diagnosis

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  21. Please describe how magnetic resonance imaging (MRI scan) has helped in your diagnosis.

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  22. The image and resolution produced by MRI is quite detailed and can detect tiny changes of structures within the body.

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  23. Magnetic Resonance Imaging (MRI scan) was developed in the 1980's and has revolutionized our ability to see normal and abnormal spinal structures and help diagnose what causes back pain.

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  24. Please describe how magnetic resonance imaging (MRI scan) has helped in your diagnosis.

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  25. if you can tell me about New MRI Scan Technology

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  26. The MRI scanner is like a tunnel about 1.5 meters long surrounded by a large circular magnet. You lie on a couch which then slides into the scanner.

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  27. MRI scan that shows a relatively normal-looking spine, or conversely may have no back pain but the MRI scan reveals a lot of anatomical problems. Thus, the findings on MRI scans do not constitute a diagnosis and the MRI findings must be correlated with the patient’s physical exam and back pain symptoms to arrive at a clinical diagnosis.

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  28. An MRI scan can create clear pictures of most parts of the body. So, it is useful for all sorts of reasons where other tests (such as X-rays) do not give enough information required.

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  29. It is also important to tell the radiographer if you have ever had any metal fragments lodged in your eyes or your body. In some cases you may need an X-ray before an MRI scan to make sure you are safe to enter the scanner.

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  30. MRI scans are painless and thought to be safe. MRI scans do not use X-rays so the possible concerns associated with X-ray pictures and CT scans (which use X-rays) are not associated with MRI scans.

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  31. Pregnant women are usually advised not to have an MRI scan unless it is urgent. Although the scan is thought to be safe, the long-term effects of strong magnetic fields on a developing baby are not yet known.

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  32. RI stands for magnetic resonance imaging. An MRI scan uses a strong magnetic field and radio waves to create pictures,

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  33. The MRI scan is an imaging test that allows physicians to assess a patient’s spinal anatomy and investigate an anatomical cause of the patient’s back pain.

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  34. How MRI Scans Work

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  35. MRI scans use strong magnetic fields and radio waves to produce a detailed image of the inside of the body.

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  36. The scientific principles behind MRI were discovered in 1946

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  37. The device that carries out MRI scans is known as an MRI scanner. The scanner consists of a large tube that contains a series of powerful magnets. The patient lies inside the tube during the scan.

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  38. At first, most MRI scanners were only available at large research centres

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  39. One of the main advantages of MRI is that, unlike X-rays, it does not involve exposing the body to radiation.

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  40. MRI is a very effective machine but it has it's limits. it has a great resolution but will not see very small tumors. therefore- it can miss metastasis sometime. but if your carcinoma is in early stage- it might not sent metastasis.

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  41. Magnetic resonance imaging (MRI) is a type of scan that is often used to diagnose health conditions that affect organs, tissue and bone.

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  42. MRI scans use strong magnetic fields and radio waves to produce a detailed image of the inside of the body. The device that carries out MRI scans is known as an MRI scanner. The scanner consists of a large tube that contains a series of powerful magnets. The patient lies inside the tube during the scan.

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  43. Extensive research has also been conducted into whether the magnetic and radio waves that are used in MRI could pose a risk to the human body.

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  44. Due to the way MRI works, an MRI scanner can provide very detailed images of your brain and spinal cord (the long bundle of nerves that runs from your brain down your spine).

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  45. MRI can be used to produce a detailed image of your heart. The image can often help detect specific problems with the heart, such as defects with the valves or chambers.

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  46. MRI can also be used to assess whether a person’s heart has been significantly damaged after having a heart attack

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  47. MRI is widely used to diagnose cancers that affect specific organs, such as lung cancer and prostate cancer. An MRI scan is also useful for assessing whether cancer has spread beyond a specific organ into nearby muscle or tissue.

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  48. MRI scans can also be used to diagnose other conditions that can affect the organs, such kidney disease.

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  49. MRI scans are a very effective way of checking for damage or abnormalities to the soft tissue found in bones and joints.

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  50. An MRI scan can be used to diagnose conditions that affect the bones and joints, such as arthritis and osteomyelitis (infection of the bones).

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  51. An MRI scan can also be used to assess damage to the cartilage, tendons, muscles and ligaments in sports injuries, as well as other types of injury that can damage a joint.

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  52. Functional MRI is a new technique used to study the workings of the brain. Rather than taking a single scan, functional MRI takes repeated scans, usually one a second.

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  53. Magnetic resonance imaging (MRI) can disrupt the working of certain medical devices that are implanted in the body

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  54. an MRI scanner is a giant tube surrounded by a circular magnet. The patient is placed on a moveable bed, which is then rolled into the tube.

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  55. MRI stands for Magnetic Resonance Imaging and it's a radiology technique which uses magnetism, radio waves, and a computer to produce images of your body which will give a range of useful information to your consultant.

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  56. we can guarantee you that it won't hurt a bit. MRI scanning is totally painless and has the added advantage of avoiding x-ray radiation exposure. There are no known side effects of an MRI scan.

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  57. Because MRI involves a form of magnetic scanning, you will be asked to remove all metallic objects before your scan.

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  58. an MRI is used as a very accurate method of disease detection throughout the body. Surgery can be deferred or more accurately directed when your consultant has read the results of your MRI scan.

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  59. After the MRI scan is finished, the computer generates visual images of the area of the body that has been scanned and these images are transferred to film.

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  60. To have an MRI scan, you need to be referred by your consultant or G.P. To claim the cost back, the reason for your scan must be included on the list of Clinical Indicators for MRI Scans.

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  61. Magnetic resonance imaging (MRI) is done for many reasons. It is used to find problems such as tumors, bleeding, injury, blood vessel diseases, or infection.

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  62. MRI can look at the brain for tumors, an aneurysm, bleeding in the brain, nerve injury, and other problems, such as damage caused by a stroke. MRI can also find problems of the eyes and optic nerves, and the ears and auditory nerves.

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  63. Using MRI to look at blood vessels and the flow of blood through them is called magnetic resonance angiography (MRA).

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  64. MRI of the chest can look at the heart, the valves, and coronary blood vessels. It can show if the heart or lungs are damaged. MRI of the chest may also be used to look for breast or lung cancer.

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  65. MRI can find problems in the organs and structures in the belly, such as the liver, gallbladder, pancreas, kidneys, and bladder

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  66. MRI can check for problems of the bones and joints, such as arthritis, problems with the temporomandibular joint, bone marrow problems, bone tumors, cartilage problems, torn ligaments or tendons, or infection. MRI may also be used to tell if a bone is broken when X-ray results are not clear. MRI is done more commonly than other tests to check for some bone and joint problems.

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  67. MRI can check the discs and nerves of the spine for conditions such as spinal stenosis, disc bulges, and spinal tumors.

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  68. For an MRI test, the area of the body being studied is placed inside a special machine that contains a strong magnet

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  69. An MRI images the spine by using a magnet that goes around the body to excite hydrogen atoms. After the atoms return to their normal level of excitation, they emit energy that is picked up on a scanner.

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  70. ince humans are composed primarily of water (which is two parts hydrogen), MRI's provide highly refined detail of the spine's anatom

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  71. An MRI scan can be used as an extremely accurate method of disease detection throughout the body. In the head, trauma to the brain can be seen as bleeding or swelling.

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  72. An MRI scan is not the best diagnostic study to assess a fracture. A computerized Tomography (CT scan) is generally done for patients who have suffered some trauma (such as a fall) if a fracture is suspected.

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  73. There are a number of important factors to take into consideration for an MRI scan, including limitations with interpretation of findings and the timing of when an MRI scan should be performed.

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  74. Therefore, an MRI scan cannot be interpreted on its own. Everything seen on an MRI needs to be well-correlated to the individual patient’s situation,

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  75. Another important consideration with MRI scans is the timing of when the scan is done. The only time an MRI scan is needed immediately is when a patient.

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  76. MRI scans are usually recommended early in a patient’s course of pain. This is because surgery for a lumbar disc herniation generally carries few unwanted side effects (morbidity) and leads to an early return to normal function for the patient.

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  77. An MRI scan is a painless radiology technique which has the advantage of avoiding x-ray radiation exposure. There are no known side effects of an MRI scan.

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  78. can significantly distort the images obtained by the MRI scanner. Patients who have heart pacemakers, metal implants, or metal chips or clips in or around the eyeballs cannot be scanned with an MRI because of the risk of the magnet affecting these metallic areas. Similarly, patients with artificial heart valves, metallic ear implants, bullet fragments, and chemotherapy or insulin pumps should not have MRI scanning.

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  79. The benefits of an MRI scan relate to its precise accuracy in detecting structural abnormalities of the body. Patients who have any metallic materials within the body must notify their physician prior to the examination or inform the MRI staff. Metallic chips, materials, surgical clips,

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  80. During the MRI scan, patients lie in a closed area inside the magnetic tube. Some patients can experience a claustrophobic sensation during the procedure.

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  81. A mild sedative can be given prior to the MRI scan to help alleviate this feeling. It is customary that the MRI staff will be nearby during MRI scan. Furthermore, there is usually a means of communication with the staff (such as a buzzer held by the patient) which can be used for contact if the patient cannot tolerate the scan.

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  82. All metallic objects on the body are removed prior to obtaining an MRI scan. Occasionally, patients will be given a sedative medication to decrease anxiety and relax the patient during the MRI scan. MRI scanning requires that the patient lie still for best accuracy. Patients lie within a closed environment inside the magnetic machine.

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  83. considered by a physician before ordering an MRI scan for a patient.

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  84. MRI scanning uses magnetism, radiowaves, and a computer to produce images of body structures.

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  85. MRI scanning is painless and does not involve x-ray radiation.

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  86. Claustrophobic sensation can occur with MRI scanning.

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  87. Patients with heart pacemakers, metal implants, or metal chips or clips in or around the eyes cannot be scanned with MRI because of the effect of the magnet.

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  88. MRI scans are perfectly safe for breast-feeding mothers. However, if you require an injection of contrast medium (dye) you should not breastfeed for 48 hours following the injection.

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  89. Usually there is no preparation required for an MRI scan. You can eat and drink normally before and after the scan

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  90. Unless you have received a bowel relaxant you may leave the hospital immediately after your MRI scan. You may go to the toilet and eat and drink as normal. There are no side affects to the MRI scan itself.

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  91. Magnetic Resonance Imaging (MRI scan) is an imaging test that allows physicians to assess a patient's spinal anatomy and to investigate the anatomical cause of the patient's back pain.

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  92. The MRI scan reveals information such as disc height and hydration, vertebral configuration, the presence of bulging or herniated discs, the size of the spinal canal, the presence of pinched nerves and any other abnormalities.

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  93. The MRI scan can give a doctor a very accurate assessment of the condition of a person's spinal anatomy.

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  94. The images that an MRI scanner takes are very detailed. They are taken in thin 'slices' through your body and can be taken from any direction.

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  95. You may have an MRI scan to find out the cause of symptoms such as pain, joint or muscle stiffness, swelling or weight loss. You may also have an MRI scan if you have been diagnosed with a condition such as cancer, where your doctor needs detailed information so you can make decisions about what treatment is best.

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  96. Not everyone can have an MRI scan. The magnetic field from the scan affects some metals and can cause any metal inside your body to move.

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  97. If you're pregnant then you wouldn't usually be offered an MRI scan, particularly in the first three months of pregnancy, unless it's absolutely necessary

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  98. Most MRI scans don't need any special preparation. However, if you're having a scan of your abdomen (tummy) or your pelvis, you may be asked to drink extra fluids before the scan. This is to help your stomach and bowel show up better on the scan. Your radiographer will tell you if you should drink before your scan

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  99. An MRI scan usually takes between 20 and 30 minutes to complete. However, some scans may last for an hour

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  100. For some MRI scans, you will be given an injection of a special dye, known as a contrast agent. This makes certain tissues and blood vessels show up more clearly and with greater detail on the scan.

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  101. An MRI of unprecedented power utilizing the newest 3.0 Tesla technology

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  102. MRI scans can be used to accurately detect and locate tumors and to determine if a tumor has spread.

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  103. The MRI scanner creates a strong magnetic field, exposing hydrogen atoms in water molecules in the body to radio waves and causing them to move into different positions

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  104. MRI scan of the head can be used to evaluate patients with headaches, seizures, muscle weakness, blurred vision, and hearing loss.

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