Virtually any instability or fluctuations in the system will cause artifacts of this type, of greater or lesser intensity.

See Motion Artifact.

Material that inhibits the flow of electricity.

Not necessarily a contraindication, but the examination may damage or impair it. An insulin pump can be disconnected easily for a period of time. Remove the pump while outside the 5 Gauss line, because the pump batteries and motor are magnetic.

An integral is a mathematical object that can be interpreted as an area or a generalization of area. A number computed by a limiting process in which the domain of a function, often an interval or planar region, is divided into arbitrarily small units, the value of the function at a point in each unit is multiplied by the linear or areal measurement of that unit, and all such products are summed (summation in the limit). In MRI for example this mathematical function is used in the Fourier transformation.

Multiple independent array coil systems can be connected simultaneously and up to 4 coil elements can be combined for a measurement.