Magnetic Resonance Imaging is a part of every hospital and makes up a significant part of a hospitals setup costs. It is also known as magnetic resonance tomography and Nuclear Magnetic resonance imaging. It is used extensively for medical imaging to visualize the miniature detains of the human body from the inside. Its performance is much greater than that of x-ray which can only distinguish between had bones and the other tissues. When it comes to distinguishing tissues, x-ray is not sufficient. This is where Magnetic Resonance Imaging scanners come in. It can easily distinguish between the tissues of the brin, heart, cancer, tumors nad muscles.
MRI scanners uses no form of ionizing radiations like x-rays that are used in x-ray scanners and CT scanners. What a Magnetic Resonance Imaging scanner does is to magnetize the atoms in the tissues of the body and use the radio frequencies to alter the magnetization’s alignment results. The rotating magnetic fields that result from these are scanned by the Magnetic Resonance Imaging scanner. This is recorded according to the intensity of rotations by the different density of tissues and differentiate between tissues.
Magnetic Resonance Imaging scanners were developed in 1973 and the first use of these scanners were done in 1974. In humans studies began in 1977. It works based on the nuclei of water. Water is abundant in the body. The Magnetic Resonance Imaging scanner creates dipoles in the water molecule which are created by the strong magnetic field created in the scanner. An electromagnetic force is generated for a small time by the electromagnetic field and cause the atoms to vibrate. These frequencies are studied in the Magnetic Resonance Imaging scanner and can be used in the study of tissues with different densities. There are different types of Magnetic Resonance Imaging scanners which are used for specialized uses. Diffusion MRI scanners are used to find the intensity of diffusion of water in tissues.