Image Characteristics

Unlike CT where the image appearance is related primarily to the electron density of the material, MR images depend on many variables including proton density, T1 and T2 relaxation effects, flow effects, diffusion effects, and susceptibility effects. Image quality is generally described in terms of SNR, spacial resolution and contrast. There is interdependence of of the SNR, resolution, and time of acquisition.

• SNR
• Resolution
• Time
• Relaxation Effects
• Trade Offs
• References