An MRI (or magnetic resonance imaging) scan is a radiology technique that uses magnetism, radio waves, and a computer to produce images of body structures. The MRI scanner is a tube surrounded by a giant circular magnet. The patient is placed on a moveable bed that is inserted into the ma...
The MRI scanner looks like a tube which is surrounded by a giant circular magnet. A moveable bed is present on which the patient is made to lie down and this table then passes into the magnet. A strong magnetic field is produced by the magnet that brings the protons of hydrogen atoms in...
In a short-bore system, you are not totally inside the MRI machine. Only the part of your body that's being scanned is inside. The rest of your body is outside the machine. An open MRI is open on all sides. This type of machine may be best if you haveclaustrophobiaor you're very...
The MRI scanner creates a strong magnetic field inside your body. A computer takes the signals from the MRI and uses them to make a series of pictures. Each picture shows a thin slice of your body. A technician sits behind a window during the scan to see the images on the screen. They...
The human body is mostly water. Water molecules (H2O) contain hydrogen nuclei (protons), which become aligned in a magnetic field. An MRI scanner applies a very strong magnetic field (about 0.2 to 3 teslas, or roughly a thousand times the strength of a typical fridge magnet), which aligns...
An MRI is similar to acomputerized tomography(CT) scanner in that it produces cross-sectional images of the body. Looking at images of the body in cross section can be compared to looking at the inside of a loaf of bread by slicing it. Unlike aCT scan, MRI does not use X-rays. Inste...
Psychologist Vinod Goel investigated humour using the new technique of ‘single event’ functional magnetic resonance imaging (fMRI).An MRI scanner uses magnetic fields and radio waves to track the changes in oxygenated blood that accompany mental activity.Until recently, MRI scanners needed several min...
With me is Stephen Bayley, an expert in medicine. Professor Bayley, can you tell us something about the MRI scanner? M: Well, like an X-ray machine, but normal X-ray machines can only show the hard parts of our bodies, while the MRI scanner can not only show the hard parts of ...
Psychologist Vinod Goel investigated humour using the new technique of ‘single event’ functional magnetic resonance imaging (fMRI). An MRI scanner uses magnetic fields and radio waves to track the changes in oxygenated blood that accompany mental activity. Until recently, MRI scanners needed several...
What Beatboxing Looks Like Through an MRI ScannerAngela Watercutter