What is MRI At Western New York MRI we use state of the art Siemens 1.5 tesla magnet. At Ken-Ton Open MRI, we provide a High-Field Open magnet. Magnetic resonace imaging is a method of diagnosis which uses a static magnetic field, radiowaves and a computer to obtain signals from the body to create an image. There is no radiation or x-rays used. This technology is important because MRI illustrates to your doctor more clearly then ever before possible the differences between healthy and diseased tissues. An MRI provides detailed images of the body in any plane. Unlike CT, it uses no radiation, but uses a powerful magnetic field to align the magnetization of the hydrogen atoms in the body. Radio waves are then used to alter the alignment of the magnetization, causing the hydrogen atoms to produce rotating magnetic field detectable by the scanner. There are no side effects produced by this and the atoms return to normal when exiting the magnetic field. Small devices called “coils” may be placed around the head, arm, leg or other areas that are to be studied. These devices help to send and receive the radiowaves. The images can be viewed on a computer, on CD or printed on film. The machine produces loud sounds during the procedure. Ear plugs are usually given to help reduce the noise. Upon completion of the exam, you may resume normal activities. Back To Top