MR Angiography


What is MRI (Magnetic Resonance imaging)?
MRI is a noninvasive medical test helping physicians to diagnose and treat many medical conditions.
MRI uses a magnetic field and a computer for producing detailed pictures of organs, soft tissues, bone and many 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), so no hazards of radiation in this study.

Any preparations needed?

  • Instructions regarding eating and drinking before an MRI exam vary with each exam.
  • The radiologist or technologist may ask you about having allergies of any kind, such as allergy to drugs, contrast material, food, the environment, or Asthma.
  • The radiologist should know if you have any serious health problems, or if you had any surgery before.
  • Women should always inform their physician or technologist if there is any possibility that they are pregnant (although MRI has not been proven to be harmful in pregnancy).
  • If you have claustrophobia (fear of enclosed spaces) or anxiety, you may want to ask for anesthesia prior to the scheduled Examination.
  • Some items should be left at home if possible, or removed prior to the MRI scan. For example:
    • watches,  credit cards, jewelry and hearing aids ( all of which can be damaged).
    • Any metallic items can distort MRI images.
    • Removable dental work.
    • Eyeglasses.
  • The following implants should not enter the MRI scanning area (unless explicitly instructed to do so by a radiologist who is aware of the presence of any of the following):
    • Internal (implanted) defibrillator or pacemaker
    • Cochlear (ear) implant
    • Some types of metal coils placed within blood vessels
  • You should tell the radiologist or the technologist if you have any devices inserted in your body, because some of them may interfere with the exam or cause a risk, Depending on their nature and the strength of the MRI magnet. For example:
    • Implanted cardiac pacemaker
    • Artificial heart valves
    • Implanted drug infusion ports
    • Implanted nerve stimulators
    • Artificial limbs or metallic joint prostheses
    • Metal pins, screws, plates, stents or surgical staples
  • Artificial joints or patients who might have metal objects in certain parts of their bodies may require the use of another imaging procedure before MRI, for example: x-ray may be taken to detect and identify any metal objects.
  • Parents who accompany children into the MRI room also need to remove metal objects and to tell the technologist about any medical or electronic devices They may have.
  • Infants and young children may require sedation or anesthesia to complete an MRI exam without moving for better images quality.