Introduction to MRI Scanner
An MRI scanner is a medical imaging device used to create detailed images of the organs and tissues within the body. It uses powerful magnets, radio waves, and a computer to generate these images without using ionizing radiation (like X-rays or CT scans).
Key Features:
- Magnetic Field: The MRI scanner uses a strong magnetic field to align the protons in the body’s water molecules.
- Radio Waves: Radiofrequency pulses are then used to disturb this alignment. When the protons realign with the magnetic field, they emit signals that are captured by the scanner.
- Computer Processing: These signals are processed by a computer to produce detailed cross-sectional images of the body.
Applications:
- Neurology: For imaging the brain and spinal cord to diagnose conditions like tumors, stroke, and multiple sclerosis.
- Orthopedics: For visualizing joint and soft tissue injuries.
- Cardiology: For assessing heart and vascular diseases.