In-room imaging and MR planning

Exposure Limits: Gradients

Normal mode Controlled mode Research mode

Percentage (%) of perceptible threshold*: = 20(1 + 0.36 − 1 )

< 80

80-100

100-120

20 1− −

Ts -1 limit to prevent cardiac stimulation*

<

3

Above are IEC 2010 limits with following notes: *t is effective stimulus duration in ms