Operational Qualification
Wear and tear or defects may disrupt operational qualification
. Regular checks avoid reduced image quality or acquiring corrupt data. It is useful to log the results of the qualification checks over time to detect trends.
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- Verify gradient amplifier matching.
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- Verify gradient and preemphasis performance.
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- Verify functionality and map shim calibration.
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RF amplifier (transmitter) performance | - ▪
- Verify transmitter output power.
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- Verify transmitter linearity.
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- Verify receive channel sensitivity and phase adjustment between multiple receiver.
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Signal-to-Noise / RF coil performance | - ▪
- Check RF Coils for visual damage.
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- Perform QA SNR Coil Checks as described in the RF coil documentation using the corresponding setup, procedure, and QA phantom.
| Monthly, recommended every week |
Imaging and spectroscopy performance | - ▪
- Perform image and spectroscopy quality checks as given in the acceptance procedure.
| Every year, recommended every month |
| | After every service action on the gradient amplifier or gradient coil. |
