Is it harmful MRI: implications for health
A study using MRI is considered a huge breakthrough in medical diagnostics. With the help of images obtained after magnetic resonance examination, it is possible to identify serious disease at an early stage of development. Using MRI, the doctor can see the exact three-dimensional model and consider the organ layer by layer. The main advantage of the method is its complete safety for the patient as the scan does not use harmful ionizing radiation, which is the basis of x-ray diagnosis, it can be done several times a year without consequences. The technique of magnetic resonance imaging based on the physical phenomenon of nuclear magnetic resonance.
How often can conduct an MRI
Patients are concerned about how many times per year you do the MRI how dangerous it is. To date there is no evidence that the procedure magnetic resonance imaging has led to any negative consequences. The dose emitted from a working scanner is so small that it is compared with the radiation that comes from microwave or cell phone, which people use daily. Subject to all of the rules of procedure and physician, and patient imaging is considered a very safe study, not bringing any harm and consequences.
If necessary, diagnosis in the case when the patient is implanted in the body of any electronic device, a stent in coronary or peripheral vessels, you should first consult with a specialist radiological diagnosis. It will help to read the instructions of the manufacturer of the device about the properties of the metal from which made the model. Experience shows that often the device is made of metals that allow for such examination without consequences for the organism.
To determine the safety of the procedure is to take into account the period of limitation set how many has passed weeks after surgery. For example, after 6-8 weeks, the vascular stent is firmly fixed inside the vessel walls, so by the end of this period the displacement of the stent under the action of the electromagnetic field is considered unlikely. Before this time, MRI is better not to do.
Often percent are concerned about the fact that will not prevent non-removable dentures to conduct the study. No, not hurt — dental materials for dentures allow the patient to undergo examination, without harming his body. It is possible that permanent dentures will reduce the quality of the research by reducing of image clarity.
It is absolutely contraindicated MRI patients who have artificial pacemaker, the electromagnetic fields can lead to asynchronous mode operation of the device, which entails implications for the development of deadly arrhythmias.
Is it possible to scan multiple areas of the body? Doctors say that Yes, it is absolutely not dangerous, you can scan several departments without harm an unlimited number of times per year.
Is it safe to do an MRI to children
Treatment for magnetic resonance imaging of children, parents often question how safe it is. Application of the method possible for even the smallest patients, the necessary use, the resulting research would greatly exceed potential harm from the procedure.
The scan process in children often takes place under General anesthesia. This is due to the fact that children are unable long time lie absolutely motionless. Upon reaching the age of six the child can do without anesthesia, but parents should explain the need to maintain complete immobility. In the case of tomography children possible side effects from the procedure associated with the introduction of anesthesia, but not with the electromagnetic field of the tomograph.
As is clear, if necessary, an MRI procedure can be safely done as many times a year, but often this is impractical data obtained from MRI, in many cases it is possible to obtain by other studies, less costly. Also there is no clear timeframe within which to refrain from re-scanning. In the presence of chronic neurological diseases specialists recommend re-examination infrequently — once a year.