MRI of the brain: the testimony, the preparation for the procedure
MRI procedure is safe as radiation exposure on the body is missing.The aim of the study is accurate diagnosis for the purpose of diagnosis and proper treatment, detection of changes in the early stages of the disease, control of the treatment of existing disease.MRI of the brain is prescribed for severe dizziness and headaches of unknown nature, hearing, vision, bruises and head injuries.This method is used in the study of intracranial hypertension, a variety of circulatory disorders in the vessels progressing pathologies of the brain and blood vessels, chronic diseases of the nervous system, in order to identify and tumors, to monitor changes a
special preparation for an MRI procedure is not required, it can be done after a person has eaten.If there are pictures from the previous study, they need to bring with you.Before an MRI is necessary to remove all metal objects - watches, jewelry, jewelry, remove hearing aids, dentures, hairpins, remove clothing with buttons or zippers metal.If the patient has a claustrophobic, you should inform your doctor about it, in this case the patient give sedatives.
How is the brain MRI
apparatus for magnetic resonance imaging is a cylindrical tube, which is surrounded by a magnet.The magnetic field generated in it during the passage through the winding coils of electric current.The wires are located in the machine to send and receive radio wave.This produces signals picked up by sensors.They are processed by a computer program, while creating a series of images showing a thin slice of tissue.To perform brain MRI patient lies down on a sliding table, then it is placed into the scanner.Once inside the machine, it must lie still and breathe.The procedure lasts for 20-40 minutes.On completion of examination of the patient on the hands is given a number of shots, as well as the doctor's conclusion.
brain MRI is contraindicated in the presence of electronic and metallic foreign bodies (pacemakers, dental implants, artificial joints, pins, plates), and intracranial aneurysms.Relative contraindications are heart failure decompensation, the initial stages of pregnancy, artificial walls of blood vessels and heart valves, metal braces, tattoos with iron-containing dyes.