Question 2193

Question contributed by Saleh Ali Abu Shakraa

Disclosures and question data

Regarding MRI design,

scanners using permanent magnets do not allow open design

superconducting electromagnets used in scanners must be kept at absolute zero temperature

shim coils are used to improve field homogeneity

phased array radiofrequency coils degrade signal-to-noise ratio (SNR)

A 1 Tesla magnetic field is 200 times the Earth’s magnetic field strength