An MRI tech should be a competent radiologic technologist who specializes in the use of magnetic resonance imaging. It only started being used in the 1980′s however is now widely accepted as being extremely useful in the treatment of cancer and also other diseases.
Is it hazardous?
The MRI scan uses a combination of magnetic and radio stations waves so it is unsuitable for patients who may have internal metal things for example a solider with a bullet lodged in his spinal column. Bone pins must be OK as they are memory foam quality metal but the technician should check. Electrical devices such as pacemakers could also cause problems. The risk of the actual magnetic force attracting the metal or perhaps interfering with electrical signals may be deemed being too high so some other imaging techniques might have to be used. MRI scanning is not suited to pregnant women in the first trimester of pregnancy. There are no difficulties with radiation poisoning which may cause issues for the people working in x-ray.
How does the idea work?
The patient will lie upon a bed which then moves inside a huge cylinder shaped magnet. Most patients find the encounter a little claustrophobic although it isn’t really painful. The MRI technician stimulates and monitors the apparatus and the patient.
In addition to the magnetic field, the equipment emits radio surf which interact with the actual hydrogen atoms in the human body. Radio stations waves affect the body’s atoms causing them to disperse. Then they move back into place and in the process distribute their own radio alerts which are picked up with the computer and turned into pictures. In this way you’ll be able to take pictures associated with virtually all tissue in the human body. The different forms of tissue show up while different colors. Your tissue with the the very least amount of water and therefore hydrogen atoms will show up as dark i.e. the particular bones while fatty tissue will show up much lighter as it contains a lot more water.
An MRI scan is specially useful when used on the brain not just to see whether there are tumors but also to see the effect involving certain diseases for example MS on the mental faculties tissue. If someone is afflicted with a brain hemorrhage an MRI will help to identify the extent from the bleed and the likely damage done to the brain tissue.