*MRI:Key Technical Issues

Parents

*Pioneers: Diffusion-Weighted Imaging
Functional MRI (fMRI)
In the resulting images, the dark areas represent the dense bone or tendon and the white areas represent the tissue which contai
MRI Coils
MRI Enhancers
MRI is especially useful in imaging problems that do not appear in other modalities such as X-Ray and ultrasound
MRI surface coil receivers
Radiowaves are intermittently pulsed into the magnetic field to alter the atom alignment
The less dense tissues emit a signal that appears in white on the final image
When energy gained from the radiowaves is released from the tissue, it is detected as a signal and transmitted to a computer.
When the body is placed in a MRI the atoms align with the magnetic field
When we see an increased signal (increased areas with more white than black) in a dense tendon or bone, it is abnormal and indic
With MRI, we’re really looking at the chemical components of the body rather than its structure.