Magnetic resonance imaging (MRI) is a medical imaging technique that utilizes powerful magnetic fields to produce detailed images of the body's soft tissues. It is a relatively new diagnostic imaging procedure that has revolutionized our understanding of the interiors of the human body. Magnetic resonance imaging is based on the phenomenon known as nuclear magnetic resonance (NMR), which was first discovered in 1946. NMR allows a technician to distinguish between different chemical structures by determining how they respond to a magnetic field. MRI uses a powerful magnetic field along with radio frequencies to produce images of the body's internal structures. When an MRI is performed, the patient is inserted into a tube containing the powerful magnet. This magnetic field causes hydrogen atoms in the body's cells to align with the directions of the magnetic field. Radio waves are then used to move the atoms into different positions, which then triggers a signal to be sent to a computer. This signal is then interpreted into a detailed image of the body's internal structures. Safety is a primary concern when performing MRI scans. As MRI scans involve the use of strong magnetic fields, metal objects are not allowed in the room. Any metallic objects present will be attracted by the magnet, with the potential to cause serious injury. In addition, the patient must remain absolutely still during the scan process as the slightest motion can cause the images to become distorted. In conclusion, MRI is an incredibly powerful diagnostic imaging technique with the potential to revolutionize our understanding of the body's internal structures. MRI technologists must take care to ensure patient safety during the scan, as well as make sure that all images produced are of the highest quality.