Topic > Magnetic Significance Imaging and MRI - 618

Magnetic resonance imaging (MRI) is considered one of the pioneers in medical imaging for the diagnosis of pathologies involving soft tissues and internal structures. MRI provides good contrast resolution between the different soft tissues of the body, especially in the brain, muscles, heart, etc. compared to other medical imaging modalities such as computed tomography (CT) and conventional radiography which uses X-rays for imaging. The other important aspect of MRI compared to other imaging modalities such as CT and conventional radiography is that MRI does not use ionizing radiation like X-rays for imaging, but uses a strong magnetic field to align the magnetization of some atoms inside the body, then uses radio frequency. pulses to systematically alter the alignment of this magnetization. This process causes the nuclei of certain atoms to produce a magnetic field that can be detected by the scanner, and all this information is used to reconstruct an MR image of the scanned area of ​​the body. Sir Otto Stern's first experiments in 1922 stated that magnetic resonance imaging is physically...