A Complete Guide to How MRI Scan Works?
MRI stands for Magnetic Resonance Imaging. It is a scanning technique that is used for creating detailed images of muscles, cartilages, and joints of the human body. The scan uses a strong magnetic field and radio waves to generate the images of the parts of the body that are injured. MRI is used when these images cannot be seen on X-Rays and Ultrasound.
Today, MRI is used to examine internal body structures. It helps to diagnose a variety of disorders, which include stroke, spinal cord injury, eye or inner ear problems, tumors, and multiple sclerosis. MRI is widely used in research to study brain structures and functions as well.
According to Dr.Christopher Filippi, the major advantage of using MRI over other imagining techniques is that there is no risk of being exposed to radiation.
According to the Journal of Biological Chemistry, about 60% of the human body is composed of water. A water molecule has the chemical formula H2O, which means it contains one molecule of hydrogen paired with two molecules of oxygen.
The MRI scanner produces a very strong magnetic field usually about 0.2 to 3 teslas, which is about one thousand times stronger than a typical magnet; this force aligns the hydrogen molecules. The hydrogen molecules absorb energy from the magnetic field and flip their spins. When the magnetic field is turned off, these molecules restore their normal spin. This process is called precession. Precession produces a radio signal that can be recorded by the receivers and is translated into an image. MRI scanners are also used to produce 3-D images that can be viewed from different angles.
What to expect?
When a patient goes for an MRI scan, they are asked to lie perfectly straight on a movable table which slides into a doughnut-shaped opening of the machine. The machine then generates a strong magnetic field around the patient.
This procedure is painless because the patient will not feel any magnetic or radio waves. However, they will hear a lot of thumping or tapping noises during the scan. For this reason, a lot of technicians give earplugs to block the sound.
The aim of the MRI scan is to locate and diagnose a specific issue in the body. Thus, the patients are given a liquid dye that can highlight the specific problems that might not show up otherwise on the scan. An MRI scan takes somewhere between 30 to 60 minutes for the full procedure to be completed. After the test is completed, a radiologist observes the images and sends the report to the concerned doctor for further interpretation.
At MRI Lincoln Imaging Centr, we are dedicated to providing our patients the highest quality care and comfortable environment. We have a full-fledged team of highly competitive, caring radiologists who can cater to all kinds of diverse needs of patients.
At the MRI Lincoln Imaging Centre, the doctors are multi-lingual so there is no need to worry about communication with the doctor. We also provide free patient transportation upon request; we are open 7 days a week and have a 24-hour turnaround time on reports.