Magnetic resonance is a dynamic and flexible technology that allows one to tailor the imaging study to anatomic part of interest and disase process,this imaging system first invented by paul lauterbur in 1971 and got nobel prize in 2003. Photons in hydrogen atom of water are used to create signal,excited hydrogen atoms emits radio frequency waves that measured by recieving coils Magnetic resonance scanner contains imortant parts, these are: Large magnet that generate magnetic field Shim coils to make magnetic field homogeneous Radio frequency coils to transmit radiosignals to the part of body to be imaged Reciever coils to detect returning radio signals Gradient coils to provide spatial localization of signals Computer to make final image Magnetic field measured in teslas,usually hospital scanner are 1.5 T but available between .2T to 7T, magnet of scanner is superconductor and require…
magnetic resonance imaging, an evolving diagnostic tool