Abstract

Introduction: Ultrahigh magnetic fields (more than 3T) are more and more installed in imaging departments in France. Machine Acceptance and time-constancy have to be checked more often than for CT-scan because the contrast of MRI images depends on the sequence and the good functionality of the hardware. Furthermore, it is well known that 3T MRIs are quite sensitive to distortions and eddy current effects. The AAPM report n100 gives good quality assurance guidelines to start from.

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