MRI contrast

Question 1

What is the source of contrast in MRI?

Answer 1

• The tissue properties
• Proton density (T1, T2 and T2*)

Question 2

Name things to take into consideration when choosing the contrast weighting.

Answer 2

• Which tissue property will determine the contrast in my image (T1- or T2-weighted image)?
• Choice of scan parameters (TR, TE, B0, etc.)
• Gradient echo vs spin echo

Question 3

What is a problem in regard to MRI?

Answer 3

Ferromagnetic metal