In-room imaging and MR planning
The Effect of Field strength
SNR scales with • field strength • voxel size • 1/receiver bandwidth (=speed) Higher field strength also gives: • better functional contrast (BOLD, DWI, DCE)
7T
3T
1.5T
0.35T
but also, • Longer T 1
3T
relaxation rates
• higher SAR • higher susceptibility effects • different ERE/EFE effects
1.5T
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