What is MRI of the heart?
MRI is a noninvasive medical test that helps physicians diagnose and treat medical conditions.
MRI 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 evaluate various parts of the body and determine the presence of certain diseases.
Why should I do it?
Cardiac MRI imaging is performed to help:
Evaluate the anatomy and function of the heart, valves, major vessels, and surrounding structures (such as the surrounding pericardial sac).
Diagnose a variety of cardiovascular (heart and/or blood vessel) disorders such as tumors, infections, and inflammatory conditions.
Detect and evaluate the effects of coronary artery disease such as limited blood flow to the heart muscle and scarring within the heart muscle after heart Attack.
Plan a patient's treatment for cardiovascular disorders.
Monitor a patient's progression over time.
Evaluate the anatomy of the heart and blood vessels in children with congenital cardiovascular disease.
Any preparations needed?
Guidelines about eating and drinking before an MRI exam vary with the specific exam.
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.
The radiologist should also know if you have any serious health problems, or if you have recently had surgery.
Women should always inform their physician or technologist if there is any possibility that they are pregnant.
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.
Jewelry and other accessories should be left at home if possible, or removed prior to the MRI scan. 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, pocket knives and eyeglasses.
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
Some types of metal coils placed within blood vessels
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. Some implanted devices require a short period of time after placement (usually six weeks) Before being safe for MRI examinations. 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
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 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.
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.
Infants and young children may require sedation or anesthesia to complete an MRI exam without moving