Abstract:
Magnetic Resonance Imaging (MRI) is a non-invasive diagnostic technique
widely used in medical imaging to produce high-resolution anatomical and
functional images of the human body. This article explores the fundamental
physical principles that underlie MRI technology, including nuclear magnetic
resonance (NMR), the behavior of hydrogen nuclei in a magnetic field,
radiofrequency (RF) excitation, and relaxation phenomena. Additionally, the
roles of gradient magnetic fields and signal acquisition in image formation are
examined. Understanding these physical mechanisms is crucial for optimizing
image quality, ensuring patient safety, and advancing MRI-based diagnostic
capabilities. This review aims to provide a comprehensive overview of the
physics behind MRI, serving as a foundational resource for medical
professionals, researchers, and students in the fields of radiology, biomedical
engineering, and medical physics.
