Today MRI Scan has become an essential procedure for analyzing the depth of the injuries to the human body and based on that start medical treatment to cure them.
Magnetic resonance imaging (MRI) is a type of scan in which magnetic fields and radio waves are used to produce detailed images of the inner molecular structure of the body.
MRI scanner is a big tunnel type machine that has powerful magnets. Patients or the person whom scan is to be done lying on a detachable platform which slides into the device through a tunnel for the scan. The below points about MRI scanning is provided by the experts of Express MRI which is one of the well-known MRI centers in the USA
Why an MRI Scan?
The human body is mostly made up of water molecules, which consists of oxygen and hydrogen atoms.
Located in the center of each hydrogen atom is a small particle called proton. They are like tiny magnets and are very sensitive to the magnetic fields.
When a person lies down under the powerful scanner magnets of an MRI machine, the protons present in the body line up straight, they lined up in a way that a magnet can pull off the needles of the compass.
Radio waves are then sent to some regions of the body, knocking the protons out of alignment.
Radio waves then transmute radio signals in different frequencies, which are reflected and bounce back by the protons inside the body. These return signals are then picked up by the receivers inside the machine, which are connected to the computer systems that are loaded with the different software to track and analyze the given data to create imagery.
These signals provide much-needed information about the exact location of protons in the body.
They also help to differentiate various tissues in the body. The protons realign at a different speed and produce distinct signals which are captured by the machine sensors.
The convoy of protons with tissue occurs the same way as the millions of pixels on a computer screen create a picture. Protons that are present in millions in the human body create a detailed image of the internal parts and organs of the body, which are further analyzed by the doctors to decide the line of treatment for an affected and damaged body part.
In this way, the entire MRI machine works. The modern-day MRI machines are more advanced and hypothermal, that means they can figure out the exact image of the inside of the body at different temperature.
Precautions to be taken before an MRI Scan
Precautions to be taken before an MRI scan are different for the machine operator and the patient.
Precautions for the machine operator
The machine operator should make sure that all the mechanical functions of the machine are working correctly and all the software loaded in the computer systems are updated.
The machine operator should also picture did the frequency of the radiation set in the machine should be optimum perfect imaging. If the rate is too low, the image TV not clear, and on the other hand, if the rate is too high, it will cause troubles to the patients.
Precautions for the patients
Patients must remove their regular clothes and should wear the clothes provided by the clinic. The reason is for the safety of the patients. It has been done because many people wear belts with metal buckles or keep critical chains with a bunch of keys in their pockets. Of course, devices like mobile are strictly disallowed.
Patients should wear off all the jewelry like rings, necklaces, pendants, earrings, and bracelets, if any, before entering into the MRI machine.
Before entering into the MRI, unit patient must clearly tell the staff or machine operator if he or she is feeling anxiety, vomiting or headache or any kind of physical pain or discomfort.
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