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MRI Forum: Slew Rate
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  Category:  Sequences and Imaging Parameters
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Sun. 2 Apr.06,
14:48
Slew Rate
Whats meaning of slew rate?
And whats its effect on human body if it raised or not?

Rud Spring

Fri. 7 Apr.06,
21:02
It's about how fast the gradient coil reaches the amplitude. It's the steepness of the curve. The time it takes to reach this amplitude is often referred to as "rise time".

At certain high slew rates the gradient switching is so fast that peripheral nerves get stimulated. A warning may be given like "possible peripheral nerve stimulation". It's not really dangerous, but you can feel your muscles contract a little. Some people are more sensitive to it than others.

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